The Spectrum Beaver is a family of single- and two-place, pusher configuration, high-wing ultralight aircraft that were first introduced by Spectrum Aircraft of Surrey, British Columbia, Canada, in 1983. Beaver ultralights have evolved as designs over time, have been produced by several companies and remain in production in the 21st century. The first model Beaver was the RX-28, a simple lightweight single-seat aircraft that was intended to comply with the US FAR 103 Ultralight Vehicles category, including the category's maximum 254 lb (115 kg) empty weight. The model designation indicated that it was Rotax-28 hp as it was powered by the 28 hp (21 kW) Rotax 277 single-cylinder, two-stroke powerplant. With this engine the RX-28 had an empty weight of 232 lb (105 kg). More information...
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