manufacturer industry aerospace founded 1959 headquarters menominee michigan united states key people ceo tracy biegler products helicopters revenue 37.5 million 1 owner chongqing helicopter investment co number of employees 174 1 110 july 2011 2 website www.enstromhelicopter.com 1973 model f 28a enstrom 280fx shark an aerodynamically restyled enstrom f 28 for the corporate market . 1999 model enstrom 480 the enstrom helicopter corporation is a chinese owned design and manufacturing company based at the menominee marinette twin county airport icao airport code kmnm in michigan united states . the company was founded in 1959 by mining engineer rudolph j. rudy enstrom initially as the r.j. enstrom corp. . 3 contents 1 history 2 products 3 references 4 external links history edit enstrom began by attempting to design his own helicopter . his lack of training in this area meant that his first efforts were not outstanding but his efforts were noticed by local upper peninsula businessmen who decided to back him . 4 they recruited several experienced aeronautical engineers and the group was incorporated as the r. j. enstrom co. 1959 . the company s first product was the piston powered f 28 1965 . however enstrom had been removed from the company before that product came onto the market although the company continued to carry his name . 5 in october 1968 a controlling interest in enstrom was bought by purex industries who wanted to develop a turbine powered version something that didn t happen until over 20 years later . the lack of success with this venture led the piston engined variants to languish and the purex stake was bought by f. lee bailey in january 1971 changing to the current name . 6 bailey was an enthusiastic entrepreneur and soon had the factory producing over a hundred units per year . he also orchestrated the development and certification of the sleek 280 shark which came on the market in 1974 . it was an immediate hit . 7 bailey encouraged by this success embarked on a four place stretch version of the shark designated 280l hawk . but the combination of technical problems with this development and a cooling economy drained the company s reserves and bailey sold the company in 1979 . since then it has changed hands several times . owners have included victor kiam and dean kamen developer of the segway people mover . 8 kamen worked to improve the company s existing products and to introduce the turbine powered 480 which was originally developed as a response to a request for bids on a military training helicopter . 9 the company was sold to an unnamed swiss investor in 2000 ; kamen remained with the company as an advisor . in january 2013 the company was purchased by the chongqing helicopter investment co of the people s republic of china . 3 ceo jerry m. mullins was president and ceo for heli dyne systems inc. in hurst texas before he succeeded the former ceo peter parsinen . 10 since delivering their first helicopter shortly after federal aviation administration type certification of the f 28 model in april 1965 enstrom helicopter corporation has produced over 1 100 helicopters as of july 2011 . 11 12 however the great recession considerably slowed its output ; it built only six units in 2010 . by early 2013 the company was expanding having increased its michigan workforce by 50 % and planned to expand its physical facilities due to increased sales mostly in asia . 3 12 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 are powered by lycoming piston engines similar to those found in general aviation fixed wing aircraft . a hallmark of enstrom s helicopter designs from the outset has been the lack of exposed pitch change links for the main rotor as the mechanisms are contained inside the hollow main rotor shaft lowering aerodynamic drag . products edit enstrom f 28 piston engine enstrom th180 training piston engine 13 enstrom 280 aerodynamically restyled f 28 enstrom 480 turbine engine references edit a b bnet profile 1 flying p. 65 a b c grady mary january 15 2013 . enstrom helicopters sold to chinese firm . avweb . retrieved january 17 2013 . stephen pope enstrom 480b flying september 2011 pp. 60 65 enstom was self employed as a heating contractor for 10 years after leaving the company that he helped to create . in 1979 he was named chief engineer of hillman helicopter phoenix arizona but that company folded a few years later when its founder douglas hillman was killed while flying a test helicopter . enstrom continued working on individual projects but did not produce another marketable product . he died in 2007 . from flying p. 63 64 enstrom website flying p. 64 november 2008 esquire magazine the proposed military trainer would have been designated th28 . the company s proposal was not successful ; bell helicopter won the bid . flying p. 65 newsletter experimental aircraft association rotor & wing magazine january 2010 a b flying p. 63 th180 enstrom training helicopter external links edit enstrom helicopter corporation official page enstrom page on the helicopter history site v t e enstrom helicopter corporation aircraft aircraft f 28 280 th180 retrieved from https en.wikipedia.org w index.php title enstrom helicopter corporation & oldid 712530404 categories helicopter manufacturers of the united stateshidden categories use mdy dates from june 2013 navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version in other projects wikimedia commons languages e tinadeutschbahasa indonesia edit links this page was last modified on 29 march 2016 at 17 02 . text is available under the creative commons attribution sharealike license ; 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