1975 The F280 Shark is certified. 1984 Inventor Dean Kamen buys the company. 1993 The turbinepowered 480 is certified. 2000 A Swiss investment company purchases Enstrom. 2012 The Chongqing Helicopter Investment Co. becomes the new owner. www.aopa.org/pilot AOPA PILOT | 57http://www.aopa.org/pilot