Originally posted by seanychen
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It seems like the max static thrust an engine can produce using the best prop is roughly:
5 x HP rating for 2 strokes
6 x HP rating for 4 strokes
What do you all think? [/B]
In principle it should be the same for 2-strake and 4-stroke as HP rating is the power the engine delivers under optimum (should that be optimistic?) conditions, while the thrust you get is the actual power delivered when moving air...
In practice you may be right as 2-strokes normally delivers their rated HorsePower at a much higher RPM