Tuesday, September 1, 2020

Re: [electricboats] First run

>> What surprises us the most is the very high pitched whine that comes from the motor.  It's far from silent.  I don't know if it's normal or if maybe the belt is too tight.

I heard a big difference in the sound from the permanent magnet motor I used to use (very quiet) and the AC motor I use now (sounds like a kitchen appliance). Both are still much quieter than the gas outboard. I find it interesting that when using any motor (gas or electric), seals will pop up ahead of the boat and keeps their heads out of the water until I'm past. If I'm rowing, they don't pop up until after I've passed them. I wonder if the underwater noise of motors bothers them.

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