[1] 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[update], approximately 1,200 aircraft.

[2] The company produces three models, the F-28, the more aerodynamic 280 and the turbine-powered 480, each with their own variants.

The F-28 and 280 both use Lycoming piston engines, virtually identical to those found in general aviation fixed-wing aircraft.

Data from Brassey's World Aircraft & Systems Directory[14]General characteristics Performance

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