propulsive efficiency coefficient

iceshark · #1 07-05-2006, 03:14 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 · #2 07-10-2006, 04:00 PM

ETAD for FVol = 1.5 is 0.618 abt. where (ETAD = ETA0*ETAH*ETAR)

iceshark · #3 07-11-2006, 11:36 PM

thank you for your answer.

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