AeroTwin engine lands second patent


February 5, 2007

Image Gallery (36 images)

February 6, 2007 We first wrote about AirScooter two years ago, characterising the company’s low-cost, easy-to-fly, ultra-lightweight coaxial rotorcraft helicopter as “a helicopter for the home". Now the company is making headlines not just for its innovative helicopter but also for the helicopter’s powerplant – the AeroTwin four-stroke aircraft engine. The second U.S. patent granted for the engine includes 23 claims focusing on the innovative lightweight one-piece head/cylinder design and related circulation and cooling methods. The AeroTwin produces 65 hp at 4200 rpm, and has a smooth/flat torque curve ideal for a wide range of sport vehicles and military applications, filling the niche between high-end hobby craft and expensive military UAVs. The company’s hobby models have now been dropped to focus resources on the engine, UAV and AirScooter segments. The knowledge obtained from hobby development contributed to the design and performance of the Company’s six-foot coaxial G70 UAV.

“This invention is an important advance in engine design allowing the production of a lightweight, powerful four-stroke engine that can effectively manage internal engine pressures,” said Dwaine Barnes, president of AirScooter Corporation. “Building on the claims of the first patent issued in 2005, this patent focuses on a range of innovations proprietary to the AeroTwin engine.”

About the Author
Mike Hanlon Mike grew up thinking he would become a mathematician, accidentally started motorcycle racing, got a job writing road tests for a motorcycle magazine while at university, and became a writer. As a travelling photojournalist during his early career, his work was published in a dozen languages across 20+ countries. He went on to edit or manage over 50 print publications, with target audiences ranging from pensioners to plumbers, many different sports, many car and motorcycle magazines, with many more in the fields of communication - narrow subject magazines on topics such as advertising, marketing, visual communications, design, presentation and direct marketing. Then came the internet and Mike managed internet projects for Australia's largest multimedia company, (Australia's largest Telco), (Australia's largest employment site),,, and a dozen other internet start-ups before founding Gizmag in 2002. Now he writes and thinks. All articles by Mike Hanlon
1 Comment

Nice innovative engine but 36 pics? If I had the kind of money this thing is expected to cost, I would buy a sport plane that can fly cross country and not in open cockpit.

Will, the tink
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