It was designed by Ernst W. Carlson and produced by Carlson Aircraft of East Palestine, Ohio and later Skyline Technologies of Salem, Ohio for amateur construction. First flown in 1987, the original Sparrow Ultralight is a single seater designed as an FAR 103 Ultralight Vehicles compliant aircraft with an empty weight within that category's 254 lb (115 kg) empty weight limit, when equipped with a light enough engine. The Sparrow can also be built in the US homebuilt and light-sport aircraft categories. The Sparrow can be equipped with skis for winter operations. Construction times from the kit are reported to be 400–500 hours. The design was named Grand Champion at EAA AirVenture Oshkosh upon its introduction in 1987. Only one hundred and some were built and few survived as the original. For more details of the design and the two seat and Sport Special variants, click here. Ultrlight variant Two seat variant Sport Special variant