Orbital's Joint Venture Synerject Intends to Acquire BRP's Engine Management Module Facility

PERTH, Australia, Nov. 10, 2005 -- Orbital Corporation Limited today announced that Synerject, its 50:50 joint venture with Siemens VDO Automotive Corporation, has signed a letter of intent with BRP US Inc. for the purchase of BRP's engine management modules facility in Delavan, Wisconsin, USA. It is expected that the transaction, which comprises the investment in working capital assets, should be finalised by 31st January 2006.

BRP US Inc. is a wholly-owned subsidiary of Bombardier Recreational Products Inc. (BRP), a privately-held company and a world leader in the design, development, manufacturing, distribution and marketing of motorised recreational vehicles. Its portfolio of brands and products includes: Ski-Doo(R) and Lynx(TM) snowmobiles, Sea-Doo(R) watercraft and sport boats, Johnson(R) and Evinrude(R) outboard engines, direct injection technologies such as Evinrude E-TEC(TM), Bombardier* ATV all-terrain vehicles, Rotax(R) engines and karts.

The facility to be acquired manufactures fuel injectors and engine management modules for Evinrude(R) and Johnson(R) outboard engines. As part of the transaction, Synerject will continue to supply BRP's Johnson and Evinrude division through long-term supply contracts.

The acquisition will generate a minimum annualised increase in Synerject's turnover of US$15m with significant, identified growth prospects for the future. The facility will be profitable from the date of acquisition and over the medium term is expected to achieve profit margins consistent with those of Synerject's current business. The transaction is a milestone in the implementation of Synerject's strategic growth plan and presents Synerject with a significant diversification opportunity, allowing it to increase both its product offerings and skill base.

Orbital's Chief Executive Officer, Rod Houston said "Clearly this transaction is significant for Synerject and will complement its existing business. From Orbital's perspective, it is a major step in consolidating the turnaround of our business and shareholders will benefit from increased value created in a growing Synerject."

Synerject, headquartered in Newport News, Virginia with additional offices in France was formed in 1997 as a joint venture between Orbital Corporation Limited and Siemens VDO Automotive Corporation. Synerject supplies engine management systems, modules and components for the marine, recreational, motorcycle and industrial markets.

More information on Synerject can be found at http://www.synerject.com/

Orbital is an international developer of engine and related technologies, providing research, design and development services for the world's producers of powertrains and engine management systems for application in motorcycles, marine and recreational vehicles, automobiles and trucks. Orbital's principal operations in Perth, Western Australia, provide a world class facility with capabilities in design, manufacturing, development and testing of engines and powertrains unparalleled in the Asia Pacific region. Orbital provides its customers with leading edge, world class, engineering expertise. Headquartered in Perth, Western Australia, Orbital stock is traded on the Australian Stock Exchange (OEC) and, in the United States, on the OTC Bulletin Board (OBTLY).