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
 
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