Good morning all. I've been lurking here for a while now and trying to get up to hull speed on this topic, but not getting the nuts and bolts into my head as fast as I'd like. I'm repowering a Bristol 27 (6600# displacement). The original Westerbeke 10 still runs, but I think the rings are leaking, and I tore something up in the transmission this fall...
Anyways, I have two big AGM 12v batteries (250Ah each) I'd like to use to keep costs down, so I'd like to go with a 24v approach. I've been told this is not as efficient as a 48v system. Whould anyone know why? I'd be willing to upgrade to 4 new batteries, but it would be nice to be able to stage it over a few years...
Prop. I've got the standard 2 blade factory prop. Should I be loking at a 3 blade if I plan to do regen? 4?
Gearing? The 3000rpm Westerbeke was reduced 2.8:1, which gets it down to around 1100 rpms at the prop. Do I do a belt drive? Gears?
Sorry for all the newbie Q's.
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