At the time this was the worlds only Subaru on an RV9A using a hydraulic constant speed prop. This prototype unit has all of the same features of the original Geared Drives PSRU including its own oil reservoir, oil pump and filtration system, drive port for hydraulic prop governor, and flywheel and centrifugal clutch assembly. This airplane with the P2 prototype Geared Drives PSRU can be seen at Sun n Fun Air Show, Lakeland, FL, April 21-26, 2009. Look for the Geared Drives booth N52 for directions the aircraft location.
Larry Ketterlings P-51 Engine
Geared Drives FWF engine package for P-51 at idle and run up very
conservatively since we were testing ignition only and there was no prop
installed. Note how smoothly the engine transitions from low RPM to higher
RPM. Nice rumbling sound through the short custom Exhaust, volume increased via the collector with
baffling within to provide back pressure and guard against shock cooling
Franks Bearhawk Engine Test Run
LS1 firewall forward engine package with Geared Drives spur gear PSRU built
for Frank's Bearhawk airframe. Test run after 5 minutes at idle produced
145 degrees, 15 minutes 150 degrees, 20 minutes 160 degrees. When brought
up to 2000 RPM the engine cooled back down to 155 degrees! We have the
right cooling combination and we can make auto engines run as cool as you
would like in this configuration.
Roger Followell's Geared Drives LS1 Engine for Legendary P-51
Bud Warren starts the Geared Drives the LS1 Chevrolet firewall forward
engine package with Geared Drives PSRU prior to delivery to its owner,
Roger Followell. I heard the engine start up so I grabbed my camera...this
was the very first start and it did start first time. We are running it
gently since there is no load on the engine.
Truyeart LS1 Engine for his RV-10 Starts for the first time!
Another Geared Drives LS1 engine package for RV-10 roars to life for the
very first time! The engine starts easily and runs at low RPM since it is
not good for it to run without the load of a propeller on it. We run it
long enough to test the systems, check for leaks, test the PSRU etc. At the
very end of the video you can see the breather on the PSRU kick over the
little bit of overage of oil as it seeks its natural level in the gearbox.
This is normal for a first run up.
Geared Drives Chevrolet Powered Airplane!
Low Fly-by at CXO in Conroe, TX. This is our Wheeler Express, experimental
aircraft with 405 HP Chevrolet V8 and Geared Drives PSRU-no belts or
chains! Sounds great, huh? More information available at
Viking Honda Aircraft Light Sport Engine Oshkosh 2010
Interview with Jan Eggenfellner at Oshkosh 2010 talking about the new
Viking Honda aircraft engine. He flew his Honda based CH601HDS aircraft
from Florida to the Wisconsin airshow. Visit his website at
Starting Three Old Aeroplanes
In a time before health and safety was invented, aeroplanes were started by
hand. Watch the man jump back as he lets go of the propellors. Sadly, they
were unable to get the Bleriot to start and run properly.
Videoed at Brooklands.
Geared Drives LSJ Run Up for Tango Two
Chevrolet LSJ 2.0L Ecotech supercharged 4 cylinder, designed and being
tested for Florida's Team Tango-Tango Two airframe. This engine is
currently being ground tested for use in experimental aircraft and is
showing tremendous potential. We do not have to run the engine at very
high RPM to make torque for the prop since we achieve torque muntiplication
through the Geared Drives PSRU. The centrifugal clutch allows the prop to
engage just following start up, and disengage only after engine shut down.
The prop will not disengage during flight.