Jim:
You said:
< < However, as an electric drive consumes more power, the thrust per kilowatt decreases. This is because the propeller gets less efficient the faster it turns, which is a result of more propeller slip. Also, the electric motor becomes less efficient as it creates more power.>>
This would indicate that a more efficient electric drive system to power a boat would be to have several motors running at a fraction of their max output driving several peopellers turning at slower speed. Is this true?
Dick
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