ggower_99(at)yahoo.com
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 Posted: Tue Feb 21, 2006 5:27 pm Post subject: prop pitch (tach acuracy) |
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I will add one VERY Important thing:
Before doing the full throttle test of the propeller pitch.
With a optical Tach and a hand calculator, check the acuracy of your airplane tach... a faulty (showing less rpms than real) tach, can over rev your engine without you noticing and that is a real danger.
Most of the modern tachs are very acurate, but Murphy sometimes visits the factories 
Also if in the future ( some "X" hours later) during the time you own the plane, you notice something about your tach readings (higher or lower readings) first check the tach, then go to something else. I almost rebuilt an engine once and was the tach...
Saludos
Gary Gower.
Zed Smith <zsmith3rd(at)earthlink.net> wrote:
Suggest you use whatever blade setting gives 5500 rpm max at wide open throttle, warm engine, etc, with the plane tied to an anchor. Be prepared for the brakes NOT to hold, tires to slide on grass, Murphy's Law mishaps.
Others will have variations of this, but just don't exceed the 5800 mark on takeoff.
Happy flying.
do not archive
Zed/701/R912/same 90+%
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