Prop shaft elec generation - SailNet Community
 
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post #1 of 1 Old 05-16-2007 Thread Starter
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Prop shaft elec generation

Over the years, I have heard of people rigging an alternator to their propeller shaft, using pulleys of course, to generate elec power while under sail. I have also heard both that it is ok! and that it is hard on a velvet drive transmission. On my boat, rigging the system up would be rather easy. I am about to embark on an extended voyage, and would like any input available on such a system.

When sailing, unless I jam a screwdriver into the Morse coupling, the shaft spins rather fast while under sail, on just my 2 blade prop. It doesn't seem to have impacted the Tranny since 1983.

Advice/Opinions solicited
Most importantly will it destroy my Velvet Drive?
Any advice on an optimal ratio of shaft pulley to alternator pully size?
captainchetco is offline  
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