Max speed for a displacement 26 ft is 6.88 knots.
Say you can do 6 knots, then you are at 50 hours to complete the race.
To have the same power as the original 6 hp engine you would need around 1500 watt motor.
A few things, bigger slower turning props are more efficient.
As speed goes up power goes up exponentialy. So say at 3 knots you need 200 watts, at 4 knots you might need 400 watts, and at 5 knots you might need 800 watts.
I think you can definitely do it. I would put as many panels as you can fit, and as much battery storage as you can afford. The one issue you might have is stabilty with all the panels mounted high up, unless you get thin panels that weigh < 4lbs each.
Good luck, and keep us posted.
Hi all,
I am new to the group and wanted some advice. I have a 6 hp johnson,
long shaft that I want to convert to electric. The goal is to put it
on a 26' x 4' flat bottom boat displacement boat and compete in a 300
mile boat race. I do not want to win, I just want to finish. I was
planning on using several solar panels(100 watt+) .
So... Is this even possible, if yes then what would be the most
efficient motor/voltage/panel/battery combo ?
Thanks
Tony
Sent from my iPhone
Sent from my iPhone
Posted by: Kev <captainyoung@gmail.com>
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