Bryan Cotton wrote:A turbo 13B would be double super cool in a Onex.
My only experience with wankels was with the Cypher UAV when I was at Sikorsky. It had a 52 HP UAV engines single rotor motor. Weighed 50 lbs wet. UAV engines was a spinoff of Norton, and I believe related to the motor in the Johnny Players special race bike. Neat engine, and nothing could beat it for noise per horsepower.
I would love to have a small rotary engine for the Onex, and I haven't looked at them recently, so maybe I should...
As you can tell from my standard screen name, I had a 13B in an RV-3. It started out with a stock turbo on it, but I removed the turbo when it became obvious that it wouldn't last long. The non-turbo 13B RV-3 could climb at 2700 fpm, but you're right about the noise. Turbos are cheating, but I'm older now and I need to cheat :lol:
I also made a custom single rotor engine based on 13B parts, and I put quite a few hours on it using a test stand. It was really too heavy for the power, and had some nasty torque reversal issues I never resolved. The weight could have been resolved with aluminum ($$$) side housings, and a lighter reduction drive. The torque reversals could be fixed with the right damper, but I gave up on all of it and sold the project to someone else.
Cheers,
Rusty (another long boring night at work)