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Geared Drives Video Clips

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Bill Gipson's RV-10Watch Video Larry Perryman's RV-9AWatch Video Geared Drives LS1 FWF package for RV-10Watch Video
Bill Gipson dos an engine run up in preparation for his first flight with his Geared Drives LS1 FWF package.  Be sure to watch the video from beginning to end to see the PSRU in operation!  Larry Perryman's Subaru in his RV-9A running the Geared Drives prototype PSRU as a retrofit replacement for the Eggenfellner gearbox.  Larry says he picked up 10-15 mph and more climb out with the Geared Drives unit.  Oshkosh Airventure 2008, they allowed us to run up our engine on our test stand with our prop cage in place.  The throaty sound of Chevrolet brought people running from all around to see it operate!  Be sure to watch it all the way to the end!  
     
Interior of Bud's WheelerWatch Video 6000 VSI in Bud's Wheeler Watch Video Wheeler at OSH Watch Video
383 Small Block Chevrolet power has a throaty, distinctive sound. Watch this low fly by clip for a sample. Watch the VSI as it pegs 6000 FPM from the Geared Drives Chevrolet 383! Bud doesn't publicly claim it because he says no one would believe it...we maintained 120 mph as we climbed out from pattern altitude with a full load of fuel and three souls on board! See how easy an auto conversion with our Geared Drives PSRU will start...the prop is not yet fully engaged until the engine RPMs come up above idle, once engaged, it will not disengage until the engine once again drops below idle RPM.