When I re-dieseled my H55, I put a roughly 8" diameter Eagle NRG gear right on the 1 1/4" driveshaft. So all pieces along the shaft in order: prop, cutlass in strut, shaft log, NRG gear, coupler. Then of course the output shaft of the transmission and the diesel engine. The bad news: I have no data yet, no sea trials.
My whole hope with this simple hybrid setup, is to e-motor for 5 seconds to 5 minutes without having to fire up the diesel engine every time. I take many people sailing on a handful of different sailboats, and the 5 seconds of rudder thrust really assures this long gal (H55) of coming about even when fore and mizzen sail trimmers are inexperienced.
I chose the NRG for decreased sound, increased longevity and efficiency.
From Goodyear: "Eagle NRG enhanced premium synchronous belts, with a patented H.O.T. (Helical Offset Tooth) design for reduced noise, reduced vibration, and increased efficiency, have increased horsepower and temperature ratings designed to perform."
Mark Stafford
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Posted by: mstafford@natca.net
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