[Public-list] ELECTRIC DRIVE

[Michael]

>I will guess the A30 needs about 15 of it's 30 hp to go 4 >knots

At any speed less than hull speed (5 1/4 knots by my calculations) the A30
needs way less than 15 hp. My 15 hp diesel drives the boat at 7+
knots-although there is a gas/diesel, brake hp./shaft hp., apple/ orange.
inability to make direct engine comparisons; not least of which electric
motors develop max hp. just before stall, internal combustion engines have
max hp. at max RPM.

Michael Grosh
#220



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