rcollector

Put some flotation in it and go ahead and run it. Failsaifs are good insurance but not neccassary. Put fresh batteries in it check that the radio funtions well at a distance. You should have the radio system installed in a radio box so it can't get wet. Clutches have been made for nitro engines like yours for marine use. I don't know if anyone is making them right now but they show up on ebay from time to time. I would not bother installing one though. You will find after you use the boat a little that you won't feel like letting it sit still idling in the water too much.