On 8/25/2023 12:21 PM, William Walsh via KRnet wrote:
Guys I bought Gerry Hamiltons kr 1.5 and the prop that he had I think
will not give me full RPM but close. Any one running and 0-200 please
advise. Looking for middle of the road. Thought about going with the
adjustable Sensenich prop and figure out the best pitch however at
$3800 I think I’m gonna look at different directions. Live in WA State
if any peps are close.
Thanks in advance for your help
William
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When you say you "get close" to full RPM, what is the number? If you
can get anywhere near 2750 RPM at full throttle level cruise and don't
intend to fly off any "extremely short" runways I'd leave well enough
alone. The prop I'd recommend is no longer available so I can't advise
on a prop. I put 800 hours on an Ed Sterba 60X68 that was supposedly
re-pitched to a 64P but I couldn't tell any difference. With the 0-200
you can get a nice economical cruise at 2450 to 2500 rpm on 5 to 5 1/2
gph if you lean and can expect a long engine life. Put on a finer pitch
prop and go cloud busting at 2700 or 2800 rpm and burn up to 8 gph. Your
engine has a determined number of rpm's in it's life time. Why use them
all on a limited number of flights?
A bit more info with numbers, prop maker, pitch / diameter might help
others to offer better advise than I'm giving.
Good luck........................
Larry Flesner
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