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) approx 1,200 aircraft.

The company produces three models, the F-28, the more aerodynamic 280 and the turbine-engined 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.

Variants

F-28

Certified April 1965.

F-28A

Initial production version. Certified May 1968.

T-28

Turbine powered.

F-28B

Turbocharged version.

F-28C

Fitted with an upgraded engine with turbocharger, and a two piece windscreen. Certified 1975

F-28F Falcon

Similar to F-28C with more powerful engine, improved turbocharger and addition of a throttle corellator. Certified December 1980

F-27F-P

Police patrol version developed for the Pasadena Police Department. It is equipped with searchlights, FLIR and a PA system.

Spitfire Mark I

A turbine powered conversion by Spitfire Helicopters Inc.

Spitfire Mark II Tigershark

A turbine powered conversion by Spitfire Helicopters Inc.

280

280 Shark Certified September 1975.

280C Shark

Aerodynamically refined version of the F28C-2, equipped with an upgraded engine, fitted with a turbocharger. Certified 1975

280L Hawk

Stretched cabin four-seat version, first flying in December 1968. Development halted due to lack of funds.

280F

Similar to 280C with more powerful engine, improved turbocharger and addition of a throttle correlator. Certified December 1980

280FX

Based on the 280F with landing gear fairings, redesigned air intakes on top of the cabin and a redesigned a relocated horizontal stabilizer with vertical end plates. Certified in January 1985