My Pearson 365
is fitted with a Westerbeke
W40 and the propeller
is a 17x10 LH three bladed prop. The engine
revs freely up to max RPM
at 3000 with a speed of 6.5 kts. When motoring into a chop with a stiff headwind my speed drops to about 3 kts. I have checked that the paragon gearbox
is not slipping. I'm considering changing the prop for a 17x12 for more thrust.
I want to get a new prop prior to hauling out. The propshaft is 1 1/8th diameter.
Does anyone have the standard propeller
I need the diameter of the shaft hole at both ends, the length of the hub, taper (ie, is it 1-12 or 1-10 taper). and finally the width of the keyway.