Hillsboro, TX: Getting power to the prop is the trickiest part of powering an airplane with an alternative engine. Modern auto engines are models of efficiency, power/weight/size optimization, and reliability. These qualities are coveted in aviation, but there is more to harnessing their power than any amount of backyard engineering can properly address. The alternative – purpose-built airplane engines – work well for their 1930s designs; they have a great track record. But they cost a fortune, both new and in replacement/repair parts. Auto PSRU’s geared speed-reduction units are designed to mate that desirable automotive power to your airplane and avoid the pitfalls, expense, and frustration of doing it on your own. "We know that the right power, at the right price, is one of the two most important considerations when building an airplane," says Stuart Davis, Owner of Auto PSRU's, "so we want to offer our customers the greatest choice, the best performance, and the most cost-effective way to get into the air." AutoPSRU's units give you confidence, plus building and design flexibility unmatched by the old-world establishment:
- a wide choice of powerplant options, from Subaru 2.5L 4-cylinder (and 6-cylinder 3.0/3.3L) to Mazda 13B rotaries, up to fully-aerobatic 550 hp LS 3 systems, including popular 400 hp firewall-forward kits for righteous iron like the Van's RV-10, Bearhawk, and Velocity.
- a wide choice of ratos: some models offer over a hundred possibilities to match plane, prop, and engine in ways no direct-drive system can.
- a prop hub configured to any propeller's mounting bolt pattern.
- offset and inline models.
- custom prop shaft lengths on many models.
Plus: All Auto PSRU’s gearboxes have an automatic centrifugal clutch and flywheel matched to the engine and run their own pressurized lubrication system; Auto PSRU’s gearboxes operate with any hydraulic constant speed propeller. See AutoPSRU's gearboxes and firewall-forward kits, and specify your own power solution on line at www.autopsrus.com or at AirVenture Oshkosh Booth #625 in the NORTH Exhibit Area.
