Vance and Paul , thx for the input. I'll try to get those books to help

with our gear selection. We need an offset drive using a
reasonably available (and priced) gear set capable of handling 3-400 hp. I
thought initially that they were too small, but
couldn't prove it. I'll let you know what we come up with, or feel free to
make suggestions. Thx again.

Chuck H

Here is the picture of the Lancair/Eagle psru guts.
Eagle would be better off running their Chevy based  V8's upside down
like the WW II Mercedes DB60x V12 ME109 engines and using a much lighter

weight

planetary psru. The Mercedes had a spur gear so they could fire a cannon

through

the
prop hub. Toyota used a planetary on their ill-fated car based aircraft V8

engine

although the engine was up right.

Paul Lamar

If you just need the gears that will stand up......The big circle track quick
change gear set cost less than $100.00 per set, new and will stand up to
anything. The shafts are cheap also.

Lynn E Hanover
lehanover@aol.com

They are racing parts Lynn and are unlikely to get more than 100 hours of use
in their entire lives. A five hundred mile race takes less than three hours.

Fatigue of the gear face is a major consideration. As I recall the ratio
range is very limited as well so you probably will need three. 

Paul Lamar
 
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