I want to make it out of Aluminium…first preliminary to check the results, and then weld it together.
I think, after reading several posts, that the Gopro is best installed underneath the Rov, instead of on the top (which would be easier, but makes the Rov unstable)
After assembling the Kit the Rov is sinking, and the front is dipping down… so first I wanted to change both weights in the front…but when I mount the Gopro it will change again.
The calculated weight of the Aluminium is only 130 gr, together with the Gopro a little more.
And having the floats on top would bring the Rov neutral again.
I want to use fishing net floats , only 0,99 €, and depth rated upto 60 m. easy to cut and flexible to mount back and forth to adjust the centre of buoyancy…
thanks for pointing out the center of drag, but the frame underneath is rather slim, and I think or hope the tether with polypropylene covering adds to the drag to keep it horizontal…
all theory… I have no access yet to a pool or big pond just now ( too cold) , so I am experimenting in the bathtub, probably it will take some tests in the lake to see how it performs on running longer stretches.
Driving backwards is quite bad…the water is pushed through the top of the Rov…and it moves slowly & not horizontal.
Maybe closing both gaps next to the vertical thruster will bring better performance.
It was a real Joy assembling the Kit, and now the fun part starts of flying, modifying, tuning and developing… Thks for this great project…the world would be better off with more people like yours!