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View Full Version : propulsive efficiency coefficient

iceshark
07-05-2006, 04:14 PM
I want to know the round chined style semi-planning hull's propulsive efficiency coefficient(Eta_d).Anybody knows this?
Eta_d = EHP/DHP
RANCHI OTTO
07-10-2006, 05:00 PM
ETAD for FVol = 1.5 is 0.618 abt. where (ETAD = ETA0*ETAH*ETAR)
iceshark
07-12-2006, 12:36 AM
thank you for your answer.

View Full Version : propulsive efficiency coefficient