Yamaha Announces New Aircraft Partnership

N962GT

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Oct 25, 2020
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Northville, Michigan
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Mohawk Arrow 140T
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Mohawk Aero Corps (MAC) has been predicting this for well over a decade, and it's finally happened. On June 29th Yamaha announced it will partner with a Japanese aircraft company to build a prototype airplane which will be powered by a Yamaha Genesis 2-cylinder (YG2) engine based on their popular 80 hp 4-stroke Phazer and Venture Lite snowmobiles sold in 2007-2018.

YAMAHA Announces Full-size Airplane Prototype


(MAC engineered, fabricated, wired, and sold the world's first flawless, truly successful, flying YG2 aircraft conversion which performed it's maiden voyage on a Quicksilver float plane May 2019. Since then, several other private builders and competitors have built their own YG2 aircraft conversions, posting their build and flight progress on Youtube and elsewhere on the web.

MAC's extraordinary pioneering success with a YG2 conversion where others had tried and failed was hardly the first of its kind, and certainly not the last. Greg built the first ever YG4 140 hp aircraft conversion from an RX1 engine in 2012 on an Air Command gyrocopter, which was perfect from its first flight and is still flying today; the first successful Apex 150 hp in 2017 that went on to fly countless long-distance cross country trips from Idaho to all points on the US map including Oshkosh, winning all six STOL races and "Best in Show" Lindy for LSA in 2018; and the first 165HP Apex EXUP (with valved titanium exhaust) on another Air Command also completed in 2019, making it the most powerful factory-stock Yamaha flying to date.

In fact, Yamaha aircraft conversion engines of the YG2 and YG4 configuration have accumulated tens of thousands of fleet hours with zero forced landings due to gearbox or engine failure, save for first Highlander STOL YG4 RX1 carbbed model built in 2014, boosted to 195 HP using NOS, and routinely flown cross country and raced every year since it was first flown. That airplane was sold and the new owner pushed the engine beyond 195 HP and 11,000 RPMs too many times, resulting in an engine-out forced landing w/o incident this past year in California.

Over the years Greg worked hard to make YG4 conversions as safe, reliable and powerful as possible while making the experimental aircraft community fully aware of the importance of proper intake and exhaust design in order to realize the full potential of these high-flow, light-weight engines, sporting internal gear reduction and harmonic dampers, after seeing too many builders cut corners with exhaust headers that were far too short and poorly-designed intake plenums.)

One can only imagine the thoughts and conversations at Bombardier's Rotax division following this stunning development.



YG2 Flier.png
 
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All_In

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Martin W.

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May 10, 2020
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It is well known that Yamaha produces excellent engines .... the problems are adapting gear reduction units .... if Yamaha simply integrated some extra threaded holes in their castings the aftermarket kit builders would do the rest as far as bringing it to aviation.

They would sell like crazy and if Yamaha never mentioned aviation it could shield them from liability

Certified aviation engines carry a lot of liability insurance which is built into the selling price.

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