my boat is powered by a 26cc zenoah engine,I skinned the outside in real carbon fiber and the interior with carbon/kevlar.I use a spektrum DX3S 2.4ghz tx with a spektrum MR3000 marine rx.the boat is equipped with a killer bee remote kill switch that doesn't need any power source to work so it will still kill the engine instantly in the event of battery failure or broken wire or when I want to from the tx. the carbon fiber was hand laid and wetted out with a special resin,then around six weeks of hand sanding with different grades of wet and dry to get it super smooth,then polish.