 It consisted of a 90 cc McCulloch chainsaw engine with a direct drive 61 cm (24") wooden prop, producing a quoted 77 lbf (340 N) of thrust; the rate of climb was about 150 ft/min (0.76 m/s) and flight duration was limited by the small fuel tank and engine overheating after several minutes.Other powered harnesses to reach the market in the 1980s were The Ranger and the Relax 220.By 2008, there were a few harness designs similar to the Swedish Aerosport Mosquito, each sporting unique strengths, and produced by other FLPHG manufacturers.