Orbital's Joint Venture Synerject Purchases BRP's Electronic Components Facility

PERTH, Australia, Feb. 21, 2006 -- Orbital Corporation Limited (BULLETIN BOARD: OBTLY) today announced that Synerject, its 50:50 joint venture with Siemens VDO Automotive Corporation, has completed due diligence and will acquire BRP US Inc.'s electronic components facility in Delavan, Wisconsin, USA with effect from 1st March 2006.

The investment by Synerject consists of working capital, principally receivables and inventory. Orbital expects the Delavan business will be profitable from the date of acquisition, with margins improving substantially over the medium term. The newly acquired business will increase Synerject's revenue by more than 50%, compared to annual revenue of US$42m reported at 30 June 2005, with further identified growth prospects for the immediate future.

Orbital's Chief Executive Officer Dr. Rod Houston said the acquisition was a significant step for Synerject in achieving its long-term growth strategy and would complement its existing business.

"Synerject's due diligence has confirmed that Delavan is generating considerably more business than we indicated to the market back in November. The ensuing profit growth will be a significant addition to Orbital's revenue streams from this part of our business. Synerject has proven to be a valuable investment for Orbital and I can see continuing opportunities for growth in this market sector," said Dr. Houston.

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

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 motorized 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(R), Bombardier* ATV all-terrain vehicles, Rotax(R) engines and karts.

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).