Hello everyone! I am new to ROV's, but I have a good background in electronics and aircraft. Being new, I have some questions that might seem odd. I'd like to learn as much as I can from this community and make a proper ROV for deep dives.
I'd like to build an ROV that uses BLDC motors and hobby ESC's so I can control them with the same PWM as model aircraft. But, it seems to me that using a more powerful ESC, or using more ESC's inside my waterproof chassis might result in overheating or turning the tube into an oven. Is this a real danger underwater, or is the thermal conductivity of the water so great that there isn't a problem inside the tube?
Is it a dumb/bad idea to mount the ESC in the water, assuming it is potted correctly? Is there such a potted ESC?