Where have you guys found efficiency numbers, or preferably curves, for alternators? The Prestolite (Leece Neville) web site has a bunch of info, but I'm not seeing efficiency numbers for the various large frame alternators.
If they really are in the 80-90% efficiency range vs the 50-70% range that I thought, it changes a bunch of my thinking around power generation while underway.
Attached is the paper from Delco Remy that I've been going on, if anyone is interested. It does a good job of breaking down the power losses.