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How much does your ROV weigh and what thrusters do you use?
Posted: Jun 29th, 2012, 11:36 am
by Marcus
See topic...
I am trying to figure out how powerful motors I need for my ROV. I have looked at a few different options. If you could specify your ROVs weight and the power of your thrusters in watts that would help me out.
Best regards
Re: How much does your ROV weigh and what thrusters do you u
Posted: Jul 4th, 2012, 6:14 pm
by timothyalderson
Mine weights 9.8 LBS. A little heavy but i built mine more for an industrial purpose. Im using standard bilge pumps and 50MM Props. It works great.
Re: How much does your ROV weigh and what thrusters do you u
Posted: Jul 21st, 2012, 10:44 am
by Rover
Ours weighs 11.8 pounds. It's not so much the weight of the ROV (they are neutrally buoyant), as it is the amount of drag the ROV presents as it moves through the water. A slender torpedo shaped ROV will glide through the water easier then one that has a large side profile.
With that said, since the typical ROV is only moving very slow, the other large item of drag is the tether, especially if your pulling a lot of it behind you.
We are also using 50mm props and brushless motors.
You may want to conduct some thruster tests with two bladed and three bladed to see which one works the best for your ROV.
The voltage drop in your tether will limit the thrust your motors put out.
Check out this link...
http://www.homebuiltrovs.com/howtotethe ... edrop.html
Jim