RPM low
Your rpms seem low to me. Not knowing your specific engine/prop combination, on a lycoming, with a prop without rpm restrictions, you should be able to hit 2700 rpm WOT @ 8500' density altitude. This is 75% power output. In your case it appears that either the engine is not making proper power, or an incorrect propeller is installed. Your propeller manufacture should provide static rpm numbers for your engine/prop combination. If the ground static numbers are good then the engine is making proper power and the prop just isnt letting you have all the performance your RV is capable of producing. Good Luck, Russ
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Russell Brown
A&P/IA
"Happiness may never be sensibly pursued as an end in itself, because happiness is the by-product of achievement." -- Northcote Parkinson (paraphrase)
Wasilla, Alaska
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