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![]() Greg Esres wrote: Perhaps in a tach from a plane that had this prop, or the Archer actually has it. The owner is unaware of any such installation for this airplane, and there is no supplement in the POH. What prop do you have? It's not just the prop. It's the prop/engine combination. The Cherokee "C" model 180s and earlier had a hollow crankshaft that caused some harmonic vibrations between 2150 and 2350. The Archer may have inherited an airspeed indicator from one of those earlier planes. Beginning with the '68 "D" model, the 180 hp PA28s were equipped with the Lyc. O-360-A4x engine, which had a solid crankshaft. This removed the rpm restriction. The Archer in question should not have any rpm restrictions (except at 2700), if it is equipped with the factory model engine and prop. John Galban=====N4BQ (PA28-180) |
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