The Enstrom F-28 and 280 are a family of small, light piston engine powered helicopters produced by the Enstrom Helicopter Corporation. == Design and development == Since delivering their first helicopter shortly after Federal Aviation Administration type certification of the F-28 model in April 1965, Enstrom helicopter has produced, as of 2007, approximately 1,200 aircraft.
The Enstrom F-28 and 280 are a family of small, light piston engine powered helicopters produced by the Enstrom Helicopter Corporation. == Design and development == Since delivering their first helicopter shortly after Federal Aviation Administration type certification of the F-28 model in April 1965, Enstrom helicopter has produced, as of 2007, approximately 1,200 aircraft.
Source: Wikipedia "Enstrom F-28" · CC BY-SA 4.0
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