Quote:
Originally Posted by Peril
Not less power 'to the air' if your prop is entering compression FX due to high tip speeds. Power to the engine is one thing, transferring this to the prop/air another. The larger props in Targetware also had the same effect where props became inefficient in this manner at high RPMs..
Perhaps the props data/size is wrong if this is incorrect here?
Food for thought.
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Typical tip Mach numbers were around 0.9ish (column #6); typical prop efficiencies were around 70-80% (column #12/13), and shock losses were assumed to be about 7% (column #14).
