The reason why we are running the engine slowly and not rapping it out is because it has no load of a propeller on it and it is not good for the engine to run at high RPM without a load to pull. We are only running it so be sure that there are no leaks, loose connections, or anything else prior to delivery.
We are averaging under 13 gph in a Ravin 500 3575 gross airplane, and we expect better from the Bearhawk.
@probuiltlakecity Two spark plugs are neede in aircraft engines since they lead foul so badly. Bottom plugs face upward and collect the lead. Auto engine plugs face downward and do not collect lead, and RARELY do they foul. Even so, if one did, there are seven other cylinders and plugs and the computer will smooth out the engine and you can still fly it to the ground for service.
Cooled by air and water, the radiator is located parallel with the firewall behind the engine.
A throttle lets you use only what you need of the available power. This engine makes more torque at 55% power than a Lyc makes at 100% power and uses a lot less fuel.
It is a Subaru auto engine. This is an experimental aircraft with a Subaru conversion and uses a Geared Drives PSRU to convert enine RPM to the proper RPM's to the propeller.
Wow. Myself and my gentleman friend have just starte on our RANS S-19 and watching your video adds to my excitement and enthusiasm! Congratulations, you are a member of one of the most elite groups of people in the world...those who have built and flown an aircraft of their own. Thanks for being an inspiration.
By the way, it includes the flywheel and clutch assembly. NO extras to buy. Bud
We held 6000 FPM until we had to stop or bust class B airspace...do you know of any piston aircraft 3200# airplanes that can do that?
the wright bros did not have three white hot flaming balls of
fire called turbos on their airplane engine.