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 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. F-28 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 (California). It is equipped with searchlights, FLIR and a public address system. Spitfire Mark I A turbine powered conversion by Spitfire Helicopters Inc.[citation needed] Spitfire Mark II Tigershark A turbine powered conversion by Spitfire Helicopters Inc. 280 Variants 280 Shark Certified September 1975.[1] 280C Shark Aerodynamically refined version of the F28C-2, equipped with an upgraded engine, fitted with a turbocharger. Certified 1975[1] 280L Hawk Stretched cabin four-seat version, first flying in December 1968. Development halted due to lack of funds.[citation needed] 280F Similar to 280C with more powerful engine, improved turbocharger and addition of a throttle correlator. Certified December 1980[3] 280FX Based on the 280F with landing gear fairings, redesigned air intakes on top of the cabin and a redesigned and relocated horizontal stabilizer with vertical end plates. Certified in January 1985 Specifications below are for the F-28F model. Enstrom F-28 Enstrom 280
