OBTEF / Orbital Corporation Limited - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Orbital Corporation Limited
US ˙ OTCPK

Mga Batayang Estadistika
CIK 880419
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Orbital Corporation Limited
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
January 9, 2015 15F-12B

OBTEF / Orbital Corp., Ltd. 15F-12B - -

Orbital Corporation Limited Form 15F Commission File Number: 1-10936 Exact name of registrant as specified in its charter: Orbital Corporation Limited Address: 4 Whipple Street, Balcatta, Western Australia, 6021 Australia Title of each class of securities covered by this form: American Depositary Shares, evidenced by American Depositary Receipts, each representing 16 ordinary shares of Orbital Corporation Limited.

January 9, 2015 EX-99

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 Whipple Street, Balcatta WA 6021 Telephone: +61 8 9441 2311 Facsimile: +61 8 9441 2133 www.

December 17, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

Converted by EDGARwiz ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 Whipple Street, Balcatta WA 6021 Telephone: +61 8 9441 2311 Facsimile: +61 8 9441 2133 www.

December 2, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

Converted by EDGARwiz ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 Whipple Street, Balcatta WA 6021 Telephone: +61 8 9441 2311 Facsimile: +61 8 9441 2133 www.

November 25, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

Converted by EDGARwiz ORBITAL CORPORATION LIMITED CHAIRMAN’S SPEECH ANNUAL GENERAL MEETING TUESDAY, 21 OCTOBER 2014 Chairman’s Address Good morning ladies and gentlemen and welcome to the 26th Annual General Meeting of Orbital Corporation Limited.

November 25, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

ORBITAL CORPORATION LIMITED A.B.N. 32 009 344 058 4 Whipple St, Balcatta, 6021, Western Australia PO Box 901, Balcatta, 6914, Western Australia Ph +61 8 9441 2311 Fax: +61 8 9441 2111 Website: www.orbitalcorp.com.au 28 October 2014 Mr Adam Russo Adviser, Listings Compliance (Perth) ASX Compliance Level 8, Exchange Plaza 2 The Esplanade Perth WA 6000 By Email: [email protected] Dear Mr Russo, P

November 25, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 Whipple Street, Balcatta WA 6021 Telephone: +61 8 9441 2311 Facsimile: +61 8 9441 2133 www.

November 25, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

November 25, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

November 25, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 Whipple Street, Balcatta WA 6021 Telephone: +61 8 9441 2311 Facsimile: +61 8 9441 2133 www.

November 25, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

Converted by EDGARwiz ORBITAL CORPORATION LIMITED A.B.N. 32 009 344 058 4 Whipple St, Balcatta, 6021, Western Australia PO Box 901, Balcatta, 6914, Western Australia Ph +61 8 9441 2311 Fax: +61 8 9441 2111 Website: www.orbitalcorp.com.au 21 October 2014 Manager Companies Company Announcements Office Australian Securities Exchange Limited Level 4, Stock Exchange Centre 20 Bridge Street SYDNEY NSW 2

November 25, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

October 29, 2014 EX-12.2

CHIEF FINANCIAL OFFICER CERTIFICATION

Certification of Chief Financial Officer pursuant to Section 302 Exhibit 12.2 CHIEF FINANCIAL OFFICER CERTIFICATION I, Ian Graham Veitch, Chief Financial Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to

October 29, 2014 EX-12.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

Certification of Chief Executive Officer pursuant to Section 302 Exhibit 12.1 CHIEF EXECUTIVE OFFICER CERTIFICATION I, Terry Dewayne Stinson, Chief Executive Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessar

October 29, 2014 20-F

OBTEF / Orbital Corp., Ltd. 20-F - - FORM 20-F

FORM 20-F Table of Contents OMB APPROVAL OMB Number: 3235-0288 Expires: November 30, 2008 Estimated average burden Hours per response.

October 29, 2014 EX-13.2

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Financial Officer pursuant to Section 906 Exhibit 13.2 CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned off

October 29, 2014 EX-13.1

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Executive Officer pursuant to Section 906 Exhibit 13.1 CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned off

September 18, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 Whipple Street, Balcatta WA 6021 Telephone: +61 8 9441 2311 Facsimile: +61 8 9441 2133 www.

September 2, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

Converted by EDGARwiz ORBITAL CORPORATION LIMITED ABN 32 009 344 0584 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA T: +61 8 9441 2311 F: +61 8 9441 2133 www.

September 2, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 Whipple Street, Balcatta WA 6021 Telephone: +61 8 9441 2311 Facsimile: +61 8 9441 2133 www.

September 2, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

ORBITAL CORPORATION LIMITED ABN 32 009 344 058 ANNUAL REPORT 30 JUNE 2014 DIRECTORS’ REPORT FOR THE YEAR ENDED 30 JUNE 2014 The Directors present their report together with the financial report of Orbital Corporation Limited (the Company or Orbital) and of the Group, being the Company, its subsidiaries and the Group’s interest in its associate for the year ended 30 June 2014 and the auditors’ report thereon.

June 30, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

ORBITAL CORPORATIOM LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 www.

June 30, 2014 6-K

OBTEF / Orbital Corp., Ltd. 6-K - Current Report of Foreign Issuer -

NEW ISSUE ANNOUNCEMENTS Appendix 3C Announcement of buy-back Rule 3.8A Appendix 3C Announcement of buy-back (except minimum holding buy-back) Information and documents given to ASX become ASX’s property and may be made public. Introduced 1/9/99. Origin: Appendix 7B. Amended 13/3/2000, 30/9/2001, 11/01/10 Name of entity ABN/ARSN Orbital Corporation Limited 32 009 344 058 We (the entity) give ASX th

June 24, 2014 6-K

Current Report of Foreign Issuer -

ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA T: +61 8 9441 2311 F: +61 8 9441 2133 www.

June 18, 2014 6-K

Current Report of Foreign Issuer -

Converted by EDGARwiz ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA T: +61 8 9441 2311 F: +61 8 9441 2133 www.

June 18, 2014 6-K

Current Report of Foreign Issuer -

Initial notice of director's interest Appendix 3X Initial Director’s Interest Notice Rule 3.

March 5, 2014 6-K

Current Report of Foreign Issuer -

Appendix 3Z Final Director’s Interest Notice Rule 3.19A.3 Appendix 3Z Final Director’s Interest Notice Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. Introduced 30/9/2001. Name of entity Orbital Corporation Limited ABN 32 009 344 058 We (the entity) give ASX the following inf

March 5, 2014 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March, 2014 Commission File Number 1-10936 Orbital Corporation Limited (Translation of registrant’s name into English) 4 Whipple Street Balcatta WA 6021 (Address of principal executive

March 4, 2014 6-K

Current Report of Foreign Issuer -

Converted by EDGARwiz ORBITAL CORPORATION LIMITED ABN 32 009 344 0584 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA T: +61 8 9441 2311 F: +61 8 9441 2133 www.

March 4, 2014 6-K

Current Report of Foreign Issuer -

ORBITAL CORPORATION LIMITED ABN 32 009 344 0584 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA T: +61 8 9441 2311 F: +61 8 9441 2133 www.

March 4, 2014 6-K

Current Report of Foreign Issuer -

ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 www.

February 5, 2014 6-K

Current Report of Foreign Issuer -

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

December 6, 2013 25

- FORM 25

Form 25 OMB APPROVAL OMB Number: 3235-0080 Expires: December 31, 2014 Estimated average burden hours per response 1.

October 30, 2013 20-F

- FORM 20-F

Form 20-F Table of Contents OMB APPROVAL OMB Number: 3235-0288 Expires: November 30, 2008 Estimated average burden Hours per response.

October 30, 2013 EX-12.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

EX-12.1 Certification of CEO pursuant to Section 302 Exhibit 12.1 CHIEF EXECUTIVE OFFICER CERTIFICATION I, Terry Dewayne Stinson, Chief Executive Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make th

October 30, 2013 EX-13.2

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

EX-13.2 Certification of CFO pursuant to Section 906 Exhibit 13.2 CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer of Orbi

October 30, 2013 EX-1.2

MEMBERSHIP INTEREST TRANSFER AGREEMENT

EX-1.2 Membership Interest Transfer Agreement dated March 1, 2013 Exhibit 1.2 MEMBERSHIP INTEREST TRANSFER AGREEMENT THIS MEMBERSHIP INTEREST TRANSFER AGREEMENT (the “Agreement”) is dated the 1st day of March, 2013, between ORBITAL FLUID TECHNOLOGIES, INC., a Delaware corporation with offices at 4 Whipple Street, Balcatta, WA 6021, Australia (“Seller”), and CONTINENTAL AUTOMOTIVE SYSTEMS, INC., a

October 30, 2013 EX-13.1

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

EX-13.1 Certification of CEO pursuant to Section 906 Exhibit 13.1 CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer of Orbi

October 30, 2013 EX-12.2

CHIEF FINANCIAL OFFICER CERTIFICATION

EX-12.2 Certification of CFO pursuant to Section 302 Exhibit 12.2 CHIEF FINANCIAL OFFICER CERTIFICATION I, Ian Graham Veitch, Chief Financial Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the st

September 16, 2013 6-K

Current Report of Foreign Issuer -

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

September 9, 2013 6-K

Current Report of Foreign Issuer -

Converted by EDGARwiz ORBITAL CORPORATION LIMITED ABN 32 009 344 0584 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA T: +61 8 9441 2311 F: +61 8 9441 2133 www.

September 3, 2013 6-K

Current Report of Foreign Issuer -

Converted by EDGARwiz ORBITAL CORPORATION LIMITED ABN 32 009 344 0584 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA T: +61 8 9441 2311 F: +61 8 9441 2133 www.

August 28, 2013 6-K

Current Report of Foreign Issuer -

An Open Briefing interview with CEO & CFO on FY13 Results & Outlook Open Briefing interview with CEO Terry Stinson and CFO Ian Veitch Orbital Corporation Limited 4 Whipple Street Balcatta WA 6021 In this Open Briefing®, Terry and Ian discuss: o Strategy refocus brings improved revenue and profit, earnings sustainability o Comfortable cash position, projected cash flow improvement o Opportunities in SUAS market Record of interview: openbriefing.

August 26, 2013 6-K

Current Report of Foreign Issuer -

ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 Whipple Street, Balcatta WA 6021 Telephone: +61 8 9441 2311 Facsimile: +61 8 9441 2133 www.

August 26, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 16, 2013 6-K

Current Report of Foreign Issuer -

Converted by EDGARwiz ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA T: +61 8 9441 2311 F: +61 8 9441 2133 www.

August 1, 2013 6-K

Current Report of Foreign Issuer -

An Open Briefing interview with CEO on UAS Contract Open Briefing interview with CEO Terry Stinson Orbital Corporation Limited 4 Whipple Street Balcatta WA 6021 In this Open Briefing®, Terry discusses: o Key drivers of new SUAS contract o Market size and growth prospects o Orbital’s opportunities in the UAS market Record of interview: openbriefing.

July 31, 2013 6-K

Current Report of Foreign Issuer -

ORBITAL CORPORATION LIMITED ABN 32 009 344 0584 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA T: +61 8 9441 2311 F: +61 8 9441 2133 www.

April 19, 2013 6-K

Current Report of Foreign Issuer -

Converted by EDGARwiz

March 6, 2013 6-K

Current Report of Foreign Issuer -

Converted by EDGARwiz Part Sale of Synerject Stake Open Briefing interview with CEO Terry Stinson and CFO Ian Veitch Orbital Corporation Limited 4 Whipple Street Balcatta WA 6021 In this Open Briefing®, Terry and Ian discuss: o Rationale for selling 12 pct of Synerject o Implications for ongoing management/operations of Synerject o Planned use of funds for Orbital's growing systems business Record of interview: openbriefing.

March 6, 2013 6-K

Current Report of Foreign Issuer -

CEO & CFO on Outlook Open Briefing interview with CEO Terry Stinson and CFO Ian Veitch Orbital Corporation Limited 4 Whipple Street Balcatta WA 6021 In this Open Briefing?, Terry and Ian discuss: o Earnings growth on UAS sales; similar earnings expected in H2 o Ongoing strategic growth in system sales, reduced dependence on consulting o Promising opportunities in systems sales Record of interview: openbriefing.

March 1, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February, 2013 Commission File Number 1-10936 Orbital Corporation Limited (Translation of registrant’s name into English) 4 Whipple Street Balcatta WA 6021 (Address of principal execut

March 1, 2013 6-K

Current Report of Foreign Issuer -

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

February 26, 2013 6-K

Current Report of Foreign Issuer -

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA T: +61 8 9441 2311 F: +61 8 9441 2133 www.

January 17, 2013 6-K

Current Report of Foreign Issuer -

6-K 1 asxreleaseappointmentofcfoe.htm ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 www.orbitalcorp.com.au ASX Code: OEC NYSE Amex Code: OBT FOR IMMEDIATE RELEASE: 17 January 2013 Appointment of Chief Financial Officer PERTH, AUSTRALIA – Orbital Corporation Limited advises that Mr Keith Halliwell, th

January 15, 2013 6-K

Current Report of Foreign Issuer -

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 www.

November 30, 2012 6-K

Current Report of Foreign Issuer -

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

October 29, 2012 EX-13.1

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 906 Exhibit 13.1 CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned off

October 29, 2012 20-F

- FORM 20-F

FORM 20-F Table of Contents OMB APPROVAL OMB Number: 3235-0288 Expires: November 30, 2008 Estimated average burden Hours per response.

October 29, 2012 EX-12.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 Exhibit 12.1 CHIEF EXECUTIVE OFFICER CERTIFICATION I, Terry Dewayne Stinson, Chief Executive Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessar

October 29, 2012 EX-12.2

CHIEF FINANCIAL OFFICER CERTIFICATION

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 302 Exhibit 12.2 CHIEF FINANCIAL OFFICER CERTIFICATION I, Keith Anthony Halliwell, Chief Financial Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

October 29, 2012 EX-13.2

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 906 Exhibit 13.2 CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned off

September 25, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September, 2012 Commission File Number 1-10936 Orbital Corporation Limited (Translation of registrant’s name into English) 4 Whipple Street Balcatta WA 6021 (Address of principal execu

September 11, 2012 6-K

Current Report of Foreign Issuer - OPEN BRIEFING INTERVIEW CEO AND CFO

An Open Briefing interview with CEO & CFO on Outlook Open Briefing interview with CEO Terry Stinson and CFO Keith Halliwell Orbital Corporation Limited 4 Whipple Street Balcatta WA 6021 In this Open Briefing®, Terry and Keith discuss: o Loss for full year reflects lower level of Consulting Services work o Cash flow improvement in second half o Strategic focus on Systems Sales to drive future growth Record of interview: openbriefing.

August 31, 2012 6-K

Current Report of Foreign Issuer - APPENDIX 4E - PRELIMINARY FINAL REPORT

ORBITAL ENGINE CORPORATION LIMITED ORBITAL CORPORATION LIMITED APPENDIX 4E Preliminary Final Report Company Details Name of Entity: Orbital Corporation Limited ABN: 32 009 344 058 Year Ended (Current Year): 30 June 2012 Year Ended (Prior Year): 30 June 2011 Results for announcement to the market A$'000 A$'000 Total revenue UP 5,723 34% to 22,361 Net profit from ordinary activities after tax attributable to members DOWN (4,816) N/A to (3,053) Net profit attributable to members DOWN (4,816) N/A to (3,053) 2012 2011 Net tangible assets per share (cents) 31.

August 30, 2012 6-K

Current Report of Foreign Issuer - FULL YEAR RESULTS - YEAR ENDED 30 JUNE 2012

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 Whipple Street, Balcatta WA 6021 Telephone: +61 8 9441 2311 Facsimile: +61 8 9441 2133 www.

June 12, 2012 6-K

Current Report of Foreign Issuer - CEO AND CFO ON AAI CONTRACT

An Open Briefing interview with CEO & CFO on AAI Contract Open Briefing interview with CEO Terry Stinson & CFO Keith Halliwell Orbital Corporation Limited 4 Whipple Street Balcatta WA 6021 In this Open Briefing®, Terry & Keith discuss: o Drivers of return to profit in FY2013 o Significance of AAI contract o Strategic diversification continues Record of interview: openbriefing.

May 24, 2012 6-K

Current Report of Foreign Issuer -

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 www.

May 24, 2012 6-K

Current Report of Foreign Issuer -

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 www.

March 8, 2012 6-K

Current Report of Foreign Issuer -

An Open Briefing interview with ASX ANNOUNCEMENT: 08 March 2012 Open Briefing Title Open Briefing interview with CEO Terry Stinson & CFO Keith Halliwell Orbital Corporation Ltd 4 Whipple Street Balcatta Western Australia 6021 In this Open Briefing®, Terry and Keith discuss: o Revenue increase of 74 percent in first half o Increased Synerject sales and record Synerject half year result o Outlook for Consulting Services Record of interview: openbriefing.

February 24, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K - ORBITAL HALF YEAR RESULTS

Form 6-K - Orbital Half Year Results UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 24, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February, 2012 Commission File Number 1-10936 Orbital Corporation Limited (Translation of registrant’s name into English) 4 Whipple Street Balcatta WA 6021 (Address of principal execut

December 16, 2011 6-K

Appendix 3B New issue announcement, application for quotation of additional securities and agreement

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

December 1, 2011 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

November 3, 2011 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

Form 20-F Table of Contents OMB APPROVAL OMB Number: 3235-0288 Expires: November 30, 2008 Estimated average burden Hours per response.

November 3, 2011 EX-12.2

CHIEF FINANCIAL OFFICER CERTIFICATION

Certification of Chief Financial Officer pursuant to Section 302 Exhibit 12.2 CHIEF FINANCIAL OFFICER CERTIFICATION I, Keith Anthony Halliwell, Chief Financial Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

November 3, 2011 EX-12.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

Certification of Chief Executive Officer pursuant to Section 302 Exhibit 12.1 CHIEF EXECUTIVE OFFICER CERTIFICATION I, Terry Dewayne Stinson, Chief Executive Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessar

November 3, 2011 EX-13.2

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Financial Officer pursuant to Section 906 Exhibit 13.2 CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned off

November 3, 2011 EX-13.1

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Executive Officer pursuant to Section 906 Exhibit 13.1 CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned off

September 7, 2011 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

August 25, 2011 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August, 2011 Commission File Number 1-10936

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August, 2011 Commission File Number 1-10936 Orbital Corporation Limited (Translation of registrant’s name into English) 4 Whipple Street Balcatta WA 6021 (Address of principal executiv

August 19, 2011 8-A12B

OMB APPROVAL OMB Number: 3235-0056 Expires: October 31, 2011 Estimated average burden hours per response . . . . . . . 3.0 UNITED STATES SECURITIES AND EXCHANGE COMMISSION PostalCodeCityplaceCityWashington, PostalCodeStateD.C. PostalCode20549 FORM 8-

Form 8-A OMB APPROVAL OMB Number: 3235-0056 Expires: October 31, 2011 Estimated average burden hours per response .

August 16, 2011 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

July 29, 2011 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 www.

July 29, 2011 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

June 1, 2011 6-K

ASX ANNOUNCEMENT: 31 May 2011

An Open Briefing interview with ASX ANNOUNCEMENT: 31 May 2011 CEO & CFO on Alternative Fuels Progress Open Briefing interview with CEO Terry Stinson and CFO Keith Halliwell Orbital Corporation Ltd 4 Whipple Street Balcatta Western Australia 6021 In this Open Briefing® Terry and Keith discuss o Rationale for Sprint Gas acquisition o Penetration of Chinese market with Changan project o Changing footprint and growing activities in alternative fuels Record of interview: openbriefing.

June 1, 2011 6-K

ORBITAL COPRORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL COPRORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 www.

May 19, 2011 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

May 10, 2011 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

April 27, 2011 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

March 4, 2011 6-K

: 4 March 2011

ASX ANNOUNCEMENT: 4 March 2011 ASX ANNOUNCEMENT: 4 March 2011 CEO & CFO on H1 2011 Results and Outlook Open Briefing interview with Orbital CEO Terry Stinson & CFO Keith Halliwell.

March 1, 2011 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

March 1, 2011 6-K

Appendix 3Z Final Director’s Interest Notice

NEW ISSUE ANNOUNCEMENTS Appendix 3Z Final Director’s Interest Notice Rule 3.19A.3 Appendix 3Z Final Director’s Interest Notice Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. Introduced 30/9/2001. Name of entity ORBITAL CORPORATION LIMITED ABN 32 009 344 058 We (the entity) gi

February 25, 2011 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

February 25, 2011 6-K

Endnotes

Orbital Corporation Limited – Half Year Report Orbital Corporation Limited – Half Year Report ABN 32 009 344 058 APPENDIX 4D Half year ended 31 December 2010 Results for announcement to the market A$'000 % A$'000 Total revenue Down 577 7.

February 23, 2011 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

January 19, 2011 6-K

Appendix 3B New issue announcement, application for quotation of additional securities and agreement

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

January 13, 2011 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

January 13, 2011 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

January 13, 2011 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

January 13, 2011 6-K

Page 1 of 4

Draft Covering Letter For Staff ORBITAL CORPORATION LIMITED SECURITIES TRADING POLICY 1.

December 21, 2010 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

December 6, 2010 EX-12.2

CHIEF FINANCIAL OFFICER CERTIFICATION

Certification of Chief Financial Officer pursuant to Section 302 Exhibit 12.2 CHIEF FINANCIAL OFFICER CERTIFICATION I, Keith Anthony Halliwell, Chief Financial Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

December 6, 2010 EX-13.2

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Financial Officer pursuant to Section 906 Exhibit 13.2 CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer

December 6, 2010 EX-13.1

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Executive Officer pursuant to Section 906 Exhibit 13.1 CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer

December 6, 2010 EX-12.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

Certification of Chief Executive Officer pursuant to Section 302 Exhibit 12.1 CHIEF EXECUTIVE OFFICER CERTIFICATION I, Terry Dewayne Stinson, Chief Executive Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessar

December 6, 2010 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

Form 20-F Table of Contents OMB APPROVAL OMB Number: 3235-0288 Expires: November 30, 2008 Estimated average burden Hours per response.

October 29, 2010 6-K

6-K

October 29, 2010 6-K

CHAIRMAN’S SPEECH ORBITAL CORPORATION LIMITED ANNUAL GENERAL MEETING THURSDAY, 28 OCTOBER 2010

CHAIRMAN?S SPEECH ORBITAL CORPORATION LIMITED ANNUAL GENERAL MEETING THURSDAY, 28 OCTOBER 2010 Good morning ladies and gentlemen and welcome to the 22nd Annual General Meeting of Orbital Corporation Limited.

October 22, 2010 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

September 29, 2010 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

September 15, 2010 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

September 1, 2010 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August, 2010 Commission File Number 1-10936

Form 6-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 31, 2010 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

August 31, 2010 6-K

Orient Capital Pty Ltd

Key points: Orient Capital Pty Ltd OPEN BRIEFING Orbital Corporation Limited CEO & CFO on FY10 Results Date: 31.

July 28, 2010 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

July 28, 2010 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

June 22, 2010 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

June 18, 2010 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

June 10, 2010 6-K

6-K

Converted by EDGARwiz

June 4, 2010 6-K

ORBITAL CORPORATION LIMITED A.B.N. 32 009 344 058

ORBITAL CORPORATION LIMITED A.B.N. 32 009 344 058 4 Whipple St, Balcatta, 6021, Western Australia PO Box 901, Balcatta, 6914, Western Australia Ph +61 8 9441 2311 Fax: +61 8 9441 2111 Website: www.orbitalcorp.com.au 3 June 2010 Ms Jill Hewitt ASX Limited Exchange Plaza 2 The Esplanade Perth WA 6000 Dear Jill Request for Voluntary Suspension We refer to our request for a trading halt dated 1 June 2

June 2, 2010 6-K

ORBITAL CORPORATION LIMITED A.B.N. 32 009 344 058

Document ORBITAL CORPORATION LIMITED A.B.N. 32 009 344 058 4 Whipple St, Balcatta, 6021, Western Australia PO Box 901, Balcatta, 6914, Western Australia Ph +61 8 9441 2311 Fax: +61 8 9441 2111 Website: www.orbitalcorp.com.au 1 June 2010 Ms Jill Hewitt ASX Limited Exchange Plaza 2 The Esplanade Perth WA 6000 Dear Jill Request for Trading Halt Orbital Corporation Limited (OEC) requests a trading hal

May 4, 2010 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

April 16, 2010 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

April 6, 2010 F-6 POS

As filed with the Securities and Exchange Commission on April 6, 2010

F-6POS As filed with the Securities and Exchange Commission on April 6, 2010 Registration No.

April 6, 2010 EX-1

=============================================================== ORBITAL ENGINE CORPORATION LIMITED THE BANK OF NEW YORK MELLON

=============================================================== ORBITAL ENGINE CORPORATION LIMITED AND THE BANK OF NEW YORK MELLON As Depositary AND OWNERS AND HOLDERS OF AMERICAN DEPOSITARY RECEIPTS SHARES Fourth Fifth Amended and Restated Deposit Agreement Dated as of May 9, 2003 , 2010 Further Amending and Restating the Deposit Agreement dated as of May 21, 2001 which was Further Amending and Restating the Deposit Agreement dated as of June 15, 1989, as amended by Amendment No.

April 6, 2010 EX-1

THE BANK OF NEW YORK MELLON AMERICAN DEPOSITARY RECEIPT FOR ORDINARY SHARES OF ORBITAL ENGINE CORPORATION LIMITED (INCORPORATED UNDER THE LAWS OF THE STATE OF WESTERN AUSTRALIA, COMMONWEALTH OF AUSTRALIA)

Exhibit A to Deposit Agreement No. AMERICAN DEPOSITARY SHARES (Each American Depositary Share represents forty (40one hundred sixty (160) Deposited Shares) THE BANK OF NEW YORK MELLON AMERICAN DEPOSITARY RECEIPT FOR ORDINARY SHARES OF ORBITAL ENGINE CORPORATION LIMITED (INCORPORATED UNDER THE LAWS OF THE STATE OF WESTERN AUSTRALIA, COMMONWEALTH OF AUSTRALIA) The Bank of New York (as successor depo

March 11, 2010 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

March 3, 2010 6-K

: 02 March 2010

ASX Announcement: 02 March 2010 ASX Announcement: 02 March 2010 CEO & CFO on H1 Result & Outlook Open Briefing interview with CEO Terry Stinson & CFO Keith Halliwell Orbital Corporation Ltd 4 Whipple Street Balcatta Western Australia 6021 In this Open Briefing®, CEO Terry Stinson & CFO Keith Halliwell discuss: o First half impacted by reduced demand on back of global financial crisis o Ongoing investment in development of LPG retrofit kits to start generating returns o Long term outlook for Orbital’s fuel efficiency/emissions reduction technology remains bright, particularly in growing markets in China, India and Brazil Record of interview: openbriefing.

February 26, 2010 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

February 26, 2010 6-K

Orbital Corporation Limited – Half Year Report ABN 32 009 344 058 APPENDIX 4D Half year ended 31 December 2009

Orbital Corporation Limited – Half Year Report Orbital Corporation Limited – Half Year Report ABN 32 009 344 058 APPENDIX 4D Half year ended 31 December 2009 Results for announcement to the market A$'000 % A$'000 Total revenue Down 534 6.

January 27, 2010 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

December 21, 2009 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

Form 20-F Table of Contents OMB APPROVAL OMB Number: 3235-0288 Expires: November 30, 2008 Estimated average burden Hours per response.

December 21, 2009 EX-12.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

Certification of CEO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 Exhibit 12.

December 21, 2009 EX-13.1

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of CEO pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 Exhibit 13.

December 21, 2009 EX-13.2

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of CFO pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 Exhibit 13.

December 21, 2009 EX-12.2

CHIEF FINANCIAL OFFICER CERTIFICATION

Certification of CFO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 Exhibit 12.

December 15, 2009 6-K

Appendix 3B New issue announcement, application for quotation of additional securities and agreement

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

October 23, 2009 6-K

CHAIRMAN’S SPEECH ORBITAL CORPORATION LIMITED ANNUAL GENERAL MEETING WEDNESDAY OCTOBER 21, 2009

CHAIRMAN?S SPEECH ORBITAL CORPORATION LIMITED ANNUAL GENERAL MEETING WEDNESDAY OCTOBER 21, 2009 Good morning ladies and gentlemen and welcome to the 21st Annual General Meeting of Orbital Corporation Limited.

October 23, 2009 6-K

Orbital Corporation Limited

Orbital Corporation Limited Orbital Corporation Limited ABN 32 009 344 058 4 Whipple Street, Balcatta, 6021 PO Box 901, Balcatta, 6914 Western Australia Ph +61 8 9441 2311 Fax: +61 8 9441 2133 Website: www.

October 23, 2009 6-K

CHIEF EXECUTIVE OFFICER’S SPEECH ORBITAL CORPORATION LIMITED ANNUAL GENERAL MEETING WEDNESDAY OCTOBER 21, 2009

Thank you Peter, CHIEF EXECUTIVE OFFICER’S SPEECH ORBITAL CORPORATION LIMITED ANNUAL GENERAL MEETING WEDNESDAY OCTOBER 21, 2009 Thank you Peter, Welcome fellow shareholders and guests.

October 8, 2009 6-K

Appendix 3B New issue announcement, application for quotation of additional securities and agreement

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

September 23, 2009 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

September 23, 2009 6-K

NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS For the financial year ended 30 June 2009

Document ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 Whipple Street, Balcatta, 6021 Western Australia Ph +61 8 9441 2311 Fax: +61 8 9441 2111 Website: www.

August 28, 2009 6-K

Attention ASX Company Announcements Platform Lodgement of Open Briefing®

Attention ASX Company Announcements Platform Attention ASX Company Announcements Platform Lodgement of Open Briefing® Orbital Corporation Ltd 4 Whipple Street Balcatta Western Australia 6021 Date of lodgement: 27-Aug-2009 Title: Open Briefing®.

August 27, 2009 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

Form 6-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 27, 2009 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

July 2, 2009 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

July 2, 2009 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

May 8, 2009 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

May 1, 2009 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

March 31, 2009 6-K

- 1 -

Pressemitteilung - 1 - Press Release Expansion of Continental and Orbital Alliance Continental and Orbital agree on restructured joint venture scope to accelerate Synerject growth and profits.

February 26, 2009 6-K

Endnotes

Orbital Corporation Limited – Half Year Report Orbital Corporation Limited – Half Year Report ABN 32 009 344 058 APPENDIX 4D Half year ended 31 December 2008 Results for announcement to the market A$'000 % A$'000 Total revenue Up 568 7.

February 26, 2009 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

February 13, 2009 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

December 23, 2008 EX-13.1

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Executive Officer pursuant to Section 906 Exhibit 13.1 CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer

December 23, 2008 EX-12.2

CHIEF FINANCIAL OFFICER CERTIFICATION

Certification of Chief Financial Officer pursuant to Section 302 Exhibit 12.2 CHIEF FINANCIAL OFFICER CERTIFICATION I, Keith Anthony Halliwell, Chief Financial Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

December 23, 2008 EX-12.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

Certification of Chief Executive Officer pursuant to Section 302 Exhibit 12.1 CHIEF EXECUTIVE OFFICER CERTIFICATION I, Terry Dewayne Stinson, Chief Executive Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessar

December 23, 2008 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

For the fiscal year ended June 30, 2008 Table of Contents OMB APPROVAL OMB Number: 3235-0288 Expires: November 30, 2008 Estimated average burden Hours per response 2611.

December 23, 2008 EX-13.2

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Financial Officer pursuant to Section 906 Exhibit 13.2 CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer

December 17, 2008 6-K

Appendix 3B New issue announcement, application for quotation of additional securities and agreement

Appendix 3B New issue announcement Rule 2.7, 3.10.3, 3.10.4, 3.10.5 Appendix 3B New issue announcement, application for quotation of additional securities and agreement Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX?s property and may be made public. Introduced 1/7/96. Origin: Appendix 5. Amended 1/7/98, 1/9/9

December 11, 2008 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

December 2, 2008 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

November 20, 2008 6-K

Corporate File Pty Ltd

corporatefile Corporate File Pty Ltd OPEN BRIEFING Draft: SEV4 Orbital Corporation Limited CEO on Update Date: 19.

October 29, 2008 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

October 28, 2008 6-K

CHAIRMAN’S SPEECH ORBITAL CORPORATION LIMITED ANNUAL GENERAL MEETING WEDNESDAY OCTOBER 22, 2008

CHAIRMAN?S SPEECH ORBITAL CORPORATION LIMITED ANNUAL GENERAL MEETING WEDNESDAY OCTOBER 22, 2008 Good morning ladies and gentlemen and welcome to the 20th Annual General Meeting of Orbital Corporation Limited.

October 28, 2008 6-K

Orbital Corporation Limited

Orbital Corporation Limited Orbital Corporation Limited ABN 32 009 344 058 4 Whipple Street, Balcatta, 6021 PO Box 901, Balcatta, 6914 Western Australia Ph +61 8 9441 2311 Fax: +61 8 9441 2133 Website: www.

October 28, 2008 6-K

CEO’S SPEECH ORBITAL CORPORATION LIMITED ANNUAL GENERAL MEETING WEDNESDAY OCTOBER 22, 2008

Good morning ladies and gentlemen, welcome to the XX annual general meeting of the Orbital Engine Corporation CEO’S SPEECH ORBITAL CORPORATION LIMITED ANNUAL GENERAL MEETING WEDNESDAY OCTOBER 22, 2008 Thank you Peter, Good morning ladies and gentlemen and fellow Orbital Shareholders.

October 21, 2008 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

October 21, 2008 6-K

Appendix 3B New issue announcement, application for quotation of additional securities and agreement

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

September 4, 2008 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

September 3, 2008 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

August 26, 2008 6-K

Attention ASX Company Announcements Platform Lodgement of Open Briefing®

Attention ASX Company Announcements Platform Lodgement of Open Briefing? Orbital Corporation Ltd 4 Whipple Street Balcatta Western Australia 6021 Date of lodgement: 25-Aug-2008 Title: Open Briefing?.

August 22, 2008 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

August 22, 2008 6-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August, 2008 Commission File Number: Orbital Corporation Limited (Tr

Form 6-K Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August, 2008 Commission File Number: Orbital Corporation Limited (Translation of registrant’s name into English) (Address of principal executive offices) Indicate by check mark whether the re

August 22, 2008 6-K

ORBITAL ANNOUNCES 2008 ANNUAL RESULTS SOLID $0.5 MILLION PROFIT ACHIEVED DESPITE ECONOMIC SLOWDOWN, RISING AUSTRALIAN DOLLAR

International clean energy technology group, Orbital Corporation Ltd (ASX: OEC – “Orbital”), has forecast 1 MEDIA RELEASE 21 AUGUST 2008 ORBITAL ANNOUNCES 2008 ANNUAL RESULTS SOLID $0.

July 25, 2008 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

July 25, 2008 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

July 25, 2008 6-K

Appendix 3B New issue announcement, application for quotation of additional securities and agreement

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

July 25, 2008 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

June 27, 2008 6-K

Appendix 3X Initial Director’s Interest Notice

Appendix 3X - Initial notice of director's interest Appendix 3X Initial Director’s Interest Notice Rule 3.

June 27, 2008 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

June 27, 2008 6-K

Appendix 3Z Final Director’s Interest Notice

Appendix 3Z Final Director’s Interest Notice Rule 3.19A.3 Appendix 3Z Final Director’s Interest Notice Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. Introduced 30/9/2001. Name of entity ORBITAL CORPORATION LIMITED ABN 32 009 344 058 We (the entity) give ASX the following inf

June 27, 2008 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

PERTH BASED ORBITAL CORPORATION EXTENDS ENVIRONMENTALLY FRIENDLY ENERGY TO SYDNEY ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

June 24, 2008 6-K

Orbital Corporation Limited ABN 32 009 344 058

ASX DRAFT Orbital Corporation Limited ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

June 19, 2008 6-K

Attention ASX Company Announcements Platform Lodgement of Open Briefing®

Attention ASX Company Announcements Platform Lodgement of Open Briefing® Orbital Corporation Ltd 4 Whipple Street Balcatta Western Australia 6021 Date of lodgement: 19-Jun-2008 Title: Open Briefing®.

June 13, 2008 6-K

Orbital Corporation Limited ABN 32 009 344 058

Orbital Corporation Limited ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

May 20, 2008 6-K

Orbital Corporation Limited ABN 32 009 344 058

ASX DRAFT Orbital Corporation Limited ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

April 2, 2008 6-K

Appendix 3X Initial Director’s Interest Notice

Appendix 3X Initial Director’s Interest Notice Rule 3.19A.1 Appendix 3X Initial Director’s Interest Notice Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. Introduced 30/9/2001. Name of entity ORBITAL CORPORATION LIMITED ABN 32 009 344 058 We (the entity) give ASX the following

April 2, 2008 6-K

Appendix 3X Initial Director’s Interest Notice

Appendix 3X - Initial notice of director's interest Appendix 3X Initial Director’s Interest Notice Rule 3.

March 26, 2008 6-K

Attention ASX Company Announcements Platform Lodgement of Open Briefing®

Attention ASX Company Announcements Platform Attention ASX Company Announcements Platform Lodgement of Open Briefing® Orbital Corporation Ltd 4 Whipple Street Balcatta Western Australia 6021 Date of lodgement: 11-Mar-2008 Title: Open Briefing®.

March 26, 2008 6-K

Orbital Corporation Limited ABN 32 009 344 058

ASX DRAFT Orbital Corporation Limited ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

March 26, 2008 6-K

Orbital Corporation Limited ABN 32 009 344 058

ASX DRAFT Orbital Corporation Limited ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

February 20, 2008 6-K

ORBITAL DELIVERS IMPROVED INTERIM RESULTS

MEDIA RELEASE 20 FEBRUARY 2008 ORBITAL DELIVERS IMPROVED INTERIM RESULTS International clean energy technology group, Orbital Corporation Ltd (ASX: OEC – “Orbital”), has forecast a profitable second half and full year after posting a reduced net loss after tax of $389,000* (2006: $429,000) for the six months to 31 December 2007.

February 20, 2008 6-K

Endnotes

Orbital Corporation Limited – Half Year Report Orbital Corporation Limited – Half Year Report ABN 32 009 344 058 APPENDIX 4D Half year ended 31 December 2007 Results for announcement to the market A$'000 % A$'000 Total revenue Down 418 5.

February 20, 2008 6-K

Orbital Corporation Limited ABN 32 009 344 058

ASX DRAFT Orbital Corporation Limited ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

January 23, 2008 6-K

Orbital Corporation Limited ABN 32 009 344 058

ASX DRAFT Orbital Corporation Limited ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

December 11, 2007 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

ASX DRAFT ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

December 6, 2007 6-K

Orbital Corporation Limited ABN 32 009 344 058

ASX DRAFT Orbital Corporation Limited ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

November 21, 2007 6-K

Appendix 3B New issue announcement, application for quotation of additional securities and agreement

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

November 21, 2007 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

November 7, 2007 6-K

Corporate File Pty Ltd

Corporate File Pty Ltd OPEN BRIEFING Orbital Corporation Limited CEO and CFO on New Developments Date: 07.

October 26, 2007 EX-13.1

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Executive Officer pursuant to Section 906 Exhibit 13.1 CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer

October 26, 2007 EX-12.2

CHIEF FINANCIAL OFFICER CERTIFICATION

Certification of Chief Financial Officer pursuant to Section 302 Exhibit 12.2 CHIEF FINANCIAL OFFICER CERTIFICATION I, Keith Anthony Halliwell, Chief Financial Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

October 26, 2007 20-F

OMB APPROVAL

Form 20-F Table of Contents OMB APPROVAL OMB Number: 3235-0288 Expires: September 30, 2007 Estimated average burden Hours per response 2631.

October 26, 2007 EX-13.2

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Executive Officer pursuant to Section 906 Exhibit 13.2 CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer

October 26, 2007 EX-12.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

Certification of Chief Executive Officer pursuant to Section 302 Exhibit 12.1 CHIEF EXECUTIVE OFFICER CERTIFICATION I, Rodney Alexander Houston, Chief Executive Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact neces

October 3, 2007 6-K

Appendix 3Y Change of Director’s Interest Notice

Change of Director's Interest Appendix 3Y Change of Director’s Interest Notice Rule 3.

October 3, 2007 6-K

Appendix 3B New issue announcement, application for quotation of additional securities and agreement

ASX Listing Rules Appendix 3B - New Issue Announcement Application for Quotation of Additional Securities and Agreement Appendix 3B New issue announcement Rule 2.

September 28, 2007 6-K

ORBITAL CORPORATION LIMITED ABN 32 009 344 058

Converted by EDGARwiz ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

September 21, 2007 6-K

ABN 32 009 344 058

Converted by EDGARwiz ORBITAL CORPORATION LIMITED ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

September 21, 2007 6-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of September, 2007 Commission File Number: Orbital Corporation Limited

Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of September, 2007 Commission File Number: Orbital Corporation Limited (Translation of registrant?s name into English) (Address of principal executive offices) Indicate by check mark whether the registra

August 28, 2007 6-K

Appendix 3X Initial Director’s Interest Notice

Appendix 3X - Initial notice of director's interest Appendix 3X Initial Director’s Interest Notice Rule 3.

August 28, 2007 6-K

ABN 32 009 344 058

ASX DRAFT ABN 32 009 344 058 4 WHIPPLE STREET BALCATTA WA 6021 AUSTRALIA TELEPHONE: +61 8 9441 2311 FACSIMILE: +61 8 9441 2133 http://www.

August 24, 2007 6-K

ASX Code: OEC

FOR IMMEDIATE RELEASE: 22 AUGUST 2007 ASX Code: OEC OTCBB Code: OBTLY ORBITAL ANNOUNCES THE APPOINTMENT OF NEW CHAIRMAN PERTH, AUSTRALIA: Orbital Corporation Limited is pleased to announce the appointment of Mr William Peter Day as a Director and Chairman of the Company with effect from 22nd August 2007.

February 23, 2007 6-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December, 2006 Commission File Number: Orbital Corporation Limited (

Form 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December, 2006 Commission File Number: Orbital Corporation Limited (Translation of registrant’s name into English) (Address of principal executive offices) Indicate by check mark whether the registrant files o

December 22, 2006 EX-13.1

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Executive Officer pursuant to Section 906 Exhibit 13.1 CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer

December 22, 2006 20-F

OMB APPROVAL

Form 20-F Table of Contents OMB APPROVAL OMB Number: 3235-0288 Expires: September 30, 2007 Estimated average burden Hours per response.

December 22, 2006 EX-12.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

Certification of Chief Executive Officer pursuant to Section 302 Exhibit 12.1 CHIEF EXECUTIVE OFFICER CERTIFICATION I, Rodney Alexander Houston, Chief Executive Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact neces

December 22, 2006 EX-13.2

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Financial Officer pursuant to Section 906 Exhibit 13.2 CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer

December 22, 2006 EX-12.2

CHIEF FINANCIAL OFFICER CERTIFICATION

Certification of Chief Financial Officer pursuant to Section 302 Exhibit 12.2 CHIEF FINANCIAL OFFICER CERTIFICATION I, Keith Anthony Halliwell, Chief Financial Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

December 13, 2006 6-K

ORBITAL SHARE PURCHASE PLAN

ORBITAL SHARE PURCHASE PLAN PERTH, AUSTRALIA: Orbital Corporation Limited is pleased to announce the successful completion of its underwritten Share Purchase Plan (SPP) announced on 14 November 2006.

November 29, 2006 6-K

A.B.N. 32 009 344 058

A.B.N. 32 009 344 058 4 Whipple St, Balcatta, 6021, Western Australia PO Box 901, Balcatta, 6914, Western Australia Ph +61 8 9441 2311 Fax: +61 8 9441 2111 Website: www.orbitalcorp.com.au 22 November 2006 The Manager Company Announcements Office Australian Stock Exchange Limited 20 Bridge Street SYDNEY NSW 2000 Dear Sir ORBITAL SHARE PURCHASE PLAN In accordance with the Listing Rules, we attach co

November 29, 2006 6-K

Rule 2.7, 3.10.3, 3.10.4, 3.10.5

Rule 2.7, 3.10.3, 3.10.4, 3.10.5 Appendix 3B New issue announcement, application for quotation of additional securities and agreement Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX?s property and may be made public. Introduced 1/7/96. Origin: Appendix 5. Amended 1/7/98, 1/9/99, 1/7/2000, 30/9/2001, 11/3/2002,

November 29, 2006 6-K

Rule 3.19A.2

Rule 3.19A.2 Appendix 3Y Change of Directors Interest Notice Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASXs property and may be made public. Introduced 30/9/2001. Name of entity ORBITAL CORPORATION LIMITED ABN 32 009 344 058 We (the entity) give ASX the following information under listing rule 3.19A.2 and as

November 16, 2006 6-K

Orbital Corporation - $6m Capital Raising

Orbital Corporation - $6m Capital Raising PERTH, AUSTRALIA: Placement and Share Purchase Plan Orbital Corporation Limited ("Orbital" or "Company") advises that it has successfully raised $4.

November 16, 2006 6-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November, 2006 Commission File Number: Orbital Corporation Limited (

Form 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November, 2006 Commission File Number: Orbital Corporation Limited (Translation of registrant’s name into English) (Address of principal executive offices) Indicate by check mark whether the registrant files o

November 16, 2006 6-K

14 November 2006

14 November 2006 Australian Stock Exchange Ltd Companies Announcement Office Electronic Lodgement System /p> Dear Sir or Madam, Announcement for Immediate Release NEW SHARE ISSUE - NOVEMBER 2006 PLACEMENT Notice under section 708(5)(e) of the Corporations Act 2001 (Cwlth) The Company advises that it has issued 26,666,667 fully paid ordinary shares ("Shares") pursuant to a Placement ("Placement") as announced on 14 November 2006.

October 31, 2006 6-K

Good morning ladies and gentlemen, I would like to provide you with a more detailed overview of the operations at Orbital. I have been in the position of CEO for over a year now and I have had some time to better appreciate the opportunities and chal

Good morning ladies and gentlemen, I would like to provide you with a more detailed overview of the operations at Orbital.

October 31, 2006 6-K

Orbital Corporation Limited

Orbital Corporation Limited ABN 32 009 344 058 4 Whipple Street, Balcatta, 6021 PO Box 901, Balcatta, 6914 Western Australia Ph +61 8 9441 2311 Fax: +61 8 9441 2133 Website: www.

October 27, 2006 6-K

Good morning ladies and gentlemen and welcome to the 18th Annual General Meeting of Orbital Corporation Limited My name is Don Bourke and I will be chairing today's meeting.

Good morning ladies and gentlemen and welcome to the 18th Annual General Meeting of Orbital Corporation Limited My name is Don Bourke and I will be chairing today's meeting.

October 4, 2006 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October, 2006 Commission File Number: 1-10936 Orbital Corporation Li

Form 6-K Table of Contents FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 3, 2006 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October, 2006 Commission File Number: 1-10936 Orbital Corporation Li

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October, 2006 Commission File Number: 1-10936 Orbital Corporation Limited (Translation of registrant’s name into English) Australian Company Number: 009 344 058 4 Whipple Street, Balcatta, Western Australia, 6

September 29, 2006 6-K

NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS

NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS For the year ended 30 June 2006 Notice is hereby given that the 18th Annual General Meeting of Orbital Corporation Limited ABN 32 009 344 058 will be held at the Freshwater Bay Room, Hyatt Regency Perth, 99 Adelaide Terrace, Perth, Western Australia on Tuesday 24 October 2006 at 10.

September 28, 2006 6-K

Orbital Settles R & D Syndicate dispute with Coles Myer

Orbital Settles R & D Syndicate dispute with Coles Myer PERTH, AUSTRALIA: This information is provided as an update to Orbital?s announcements on 28 April 2006 and 3 August 2006.

September 28, 2006 6-K

Orbital and Bajaj Sign New License for Gaseous Autorickshaw

Orbital and Bajaj Sign New License for Gaseous Autorickshaw PERTH, AUSTRALIA: Orbital Corporation Limited and Bajaj Auto Ltd, India have announced an expansion of their licensing arrangements to cover liquid petroleum gas (LPG) and compressed natural gas (CNG) application In May 2004 the parties announced a Technical Cooperation Agreement that will see Orbital's fuel injection technology applied to Bajaj's autorickshaw three wheeler vehicles.

August 8, 2006 6-K

Orbital R & D Syndicates - Update

Orbital R & D Syndicates - Update PERTH, AUSTRALIA: This information is provided as an update to Orbital's announcement on 28 April 2006.

July 6, 2006 6-K

New financing package for Orbital's JV Synerject

New financing package for Orbital's JV Synerject PERTH AUSTRALIA Orbital Corporation Limited today announced that Synerject LLC its 50:50 joint venture with Siemens VDO Automotive Corporation (Siemens) has established new financing arrangements with the SunTrust Banks Inc (USA).

July 6, 2006 6-K

Orbital Corporation Ltd 4 Whipple Street Balcatta Western Australia 6021

Orbital Corporation Ltd 4 Whipple Street Balcatta Western Australia 6021 Date of lodgement: 05-Jul-2006 Title: Open Briefing(r).

January 13, 2006 EX-13.2

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Financial Officer pursuant to Section 906 Exhibit 13.2 CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer

January 13, 2006 EX-12.2

CHIEF FINANCIAL OFFICER CERTIFICATION

Certification of Chief Financial Officer pursuant to Section 302 Exhibit 12.2 CHIEF FINANCIAL OFFICER CERTIFICATION I, Keith Anthony Halliwell, Chief Financial Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

January 13, 2006 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

For the fiscal year ended June 30, 2005 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

January 13, 2006 EX-13.1

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Executive Officer pursuant to Section 906 Exhibit 13.1 CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer

January 13, 2006 EX-10.1

Dated 23 August 2005 Executive Service ORBITAL CORPORATION RODNEY ALEXANDER Executive Service Agreement Date: 23 August 2005 Parties: ORBITAL CORPORATION LIMITED ABN 32 009 344 058 having its registered office at 4 Whipple Street, Balcatta, Western A

Exhibit 10.1 Dated 23 August 2005 Executive Service Agreement ORBITAL CORPORATION LIMITED (“Company”) RODNEY ALEXANDER HOUSTON (“Executive”) Executive Service Agreement Date: 23 August 2005 Parties: ORBITAL CORPORATION LIMITED ABN 32 009 344 058 having its registered office at 4 Whipple Street, Balcatta, Western Australia (“Company”) RODNEY ALEXANDER HOUSTON of 20 Reynolda Green, Hillarys, Western

January 13, 2006 EX-12.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

Certification of Chief Executive Officer pursuant to Section 302 Exhibit 12.1 CHIEF EXECUTIVE OFFICER CERTIFICATION I, Rodney Alexander Houston, Chief Executive Officer, certify that: 1. I have reviewed this annual report on Form 20-F of Orbital Corporation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact neces

December 30, 2005 NT 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One): ¨ Form 10-K x Form 20-F ¨ Form 11-K ¨ Form 10-Q ¨ Form 10-D ¨ Form N-SAR ¨ Form N-CSR For Period Ended: June 30, 2005 ¨ Trans

Form 12b-25 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One): ¨ Form 10-K x Form 20-F ¨ Form 11-K ¨ Form 10-Q ¨ Form 10-D ¨ Form N-SAR ¨ Form N-CSR For Period Ended: June 30, 2005 ¨ Transition Report on Form 10-K ¨ Transition Report on Form 20-F ¨ Transition Report on Form 11-K ¨ Transition Report on Form 10-Q ¨ Transition

August 31, 2005 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 OMB APPROVAL OMB Number: 3235-0116 Expires: August 31, 2005 Estimated average burden hours per response . . . 6.20 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August, 2005 Commission File Number 1-10936 Orbital Corporation Limit

August 25, 2005 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 OMB APPROVAL OMB Number: 3235-0116 Expires: August 31, 2005 Estimated average burden hours per response . . . 6.20 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August, 2005 Commission File Number 1-10936 Orbital Corporation Limit

February 25, 2005 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 OMB APPROVAL OMB Number: 3235-0116 Expires: August 31, 2005 Estimated average burden hours per response . . . 6.20 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February, 2005 Commission File Number 1-10936 Orbital Corporation Limited (Tra

December 30, 2004 EX-13.1

CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Certification of Chief Executive Officer pursuant to Section 906 Exbibit 13.1 CERTIFICATION PURSUANT TO SECTION 906 OF SARBANES-OXLEY ACT OF 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer

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