I have a similar plan. Arduino, pwm, two potentiometers. I have the electronics part working with LED's so far. Do a search on "packing gland". Also try regular boatbuilding sites., same topic. Remembe that you will need a thrust bearing somewhere in your setup to counteract the attempt of the prop to push the driveshaft into the boat.
Hi everyone!
I'm new here and this is my first boat build. I built a small (7' 6") two sheet boat(I'm surprised how well it turned out) and now I'm considering using two scooter motors to propel it. I figure with two props in the back I could steer by varying the speed of ether motor or even reverse one to turn tightly.
I'm good with the electronics so I'll have no trouble making a motor controller etc. I just need help on the boat part as I'm a total beginner.
My questions, to anyone who has any ideas or knowledge.
a) How do I run a shaft through the hull without leaking water?
b) How deep/what angle does the prop need to be for effective thrust?
c) How far from the back of the hull should the prop be positioned.
d) anything obvious that a beginner would miss.
e) What kind of torque is typical of a trolling motor, rpm, picking a prop etc?
Any links to DIY inboards for really small boats would be helpful and anyone using a scooter motor.
Comments suggestions are appreciated.
Thanks!
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