Hi. I bought a fast electric catamaran with twin motors and discovered that it operated on 33mhz, which I've been lead to believe is slightly illegal in the UK! So, I've replaced the radio gear and rather than mess about using the motors to steer, I've decided to replace the 'adjustment' rudder with an aluminium unit intended to upgrade boats of around 1 metre, which this boat is. Before I finish it, a question has formed in my mind as to whether you can use only 1 rudder on a boat that has 2 props?
I'm also figuring on moving the battery slightly forward (because that's where the rudder servo is now) to compensate for the additional weight and possible 'drag' of the new, larger rudder, although I'm using a physically smaller battery pack than originally equipped the boat. The original battery pack was duff, so the boat never worked, which is why the bloke sold it! Ash.