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At 07:36 AM 3/28/2006, you wrote:
I have a C75, and crank is marginal. We are looking at the O-200
crankshaft STC, which makes it a C85, I believe.
Changing the crank doesn't make the engine an 85, however, I think
the O200 crankshaft STC may only apply to the C85, so you have to
convert first. Regardless, a 73" prop is not suitable for either
configuration.
Your prop can be cut down and repitched, assuming it has not been
repitched to many times in the past. A better solution may be to
trade your prop for a 71" prop., or sell yours and buy a 71"
prop. While it's easy to shorten them, there is no way to make them longer!
A 7148 would be on the climb side. I'd recommend a 7150 all around use.
John Cooper, A&P
Skyport Services
PO Box 249
4996 Delaware Tnpk
Rensselaerville, NY 12147
518 797-3064
Fax 518 797-3865
www.skyportservices.net
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