So what would make things radically simpler is if I just mount the servos next to the control surfaces and waterproof the servos. I have seen a few ideas and videos on how to do it, the best method i have seen is to conformal coat the pcb to seal it then fill the servo with oil and seal it up with epoxy or liquid insulation. My plan is to take an already "waterproof" servo, this just means that its got rubber gasket around the shaft and seams so if i fill it with oil the seals should keep the oil from leaking out around the output shaft and and il apply some liquid insulation around the wire and seams just to be sure.
To fill it I'm thinking of placing the servo in a vacuum chamber submerged in mineral oil, il loosen the screws to let the air get out, its the only way I can be sure that the oil has got everywhere in the servo with no bubbles of air, if any air is left it will compress and let the water in.
has any one else here attempted to waterproof a servo ?
these are the servos im probably going to use, they have rubber seals around all the casing joins and around the output shaft, I use them in almost all of my boats.