NO, move your battery further forward to the nose until the prop is just under the water, look on ebay for rc bellows, they stop the water getting in through the linkage, they do work

most people mount the bellows inside the hull but i mount them outside the hull

2.4gig rx only works with the same transmitter, if your getting a spektrum tx then you can only use spektrum rx, i think there all compatable with eachother but double check to be sure