You guys may be interested to know that the Sundancer 50 does just as well with electric power. I use an AXI 4120/18 motor rated at about 1000 watts (more than a horsepower) with a lithium polymer battery (TP4500 5s1p) which weighs 20 oz. Total AUW is about 6 lbs. A 14 x 6 prop gives very good speed and maneuvers.