I got a question for you....
How much horsepower can you get from a Turbo'ed 20B at say 2500 to

2700 RPM at a reasonable boost level running 100LL???

Thanks,
Blake
Cozy Mk IV Plans

Blake, I thought about this, but dismissed it because you'd have to use a
lot of turbo boost (probably 8-10psi) to get 200 hp which is not realistic,
plus you'd still have to build some kind of thrust bearing to take the prop
thrust. Also, there's no way you want to put a turbo 20B in a Cozy-it's
just too heavy. There was one built by Brice Daunay, but it was very heavy
(1,600#) by the time he was done strengthing it. He ended up getting cracks
in the wings and having to do them over, plus installed heavier (Infinity)
landing gear. It was for sale last I heard.

Some people are trying to use smaller diameter multi-blade props, so they
can run higher rpms (up to 4,000), but I haven't seen anything flying. A
turbo 13B would be reasonable weight (w/psru) and would produce over 200hp
even at altitude.

Chuck H

Thanks for the signature file Chuck :-)

Paul Lamar

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