Enstrom Helicopter Corporation

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.[4]

Enstrom Helicopter Corporation
TypeManufacturer
IndustryAerospace
Founded1959
Headquarters
Menominee, Michigan
,
United States
Key people
Matt Francour (CEO)[1]
ProductsHelicopters
RevenueUS$37.5 million[2]
OwnerChongqing Helicopter Investment Corporation
Number of employees
110 [3]
Websitewww.enstromhelicopter.com
1973 model F-28A
Enstrom 280FX Shark, an aerodynamically restyled Enstrom F-28 for the corporate market.
1999 model Enstrom 480

History

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.[5] 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.[6]

In October 1968, a controlling interest in Enstrom was bought by Purex Industries, who wanted to develop a turbine powered version, a project that was not completed until over 20 years later. The lack of success with this venture led the piston engine variants to languish and the Purex stake was bought by F. Lee Bailey, a well-known American criminal defense attorney, in January 1971, changing to the current name.[7] 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 280 Shark, which was introduced to the market in 1974. It was an immediate sales success.[8] Encouraged, Bailey embarked the design of a four-place stretched version of the Shark (designated 280L Hawk), but the combination of technical problems with this development and a cooling economy drained the company's financial 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 PT people-mover.[9]

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.[10] 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 Corporation of the People's Republic of China.[4]

Jerry M. Mullins was president and CEO of Heli-Dyne Systems Inc. in Hurst, Texas before he succeeded the former CEO Peter Parsinen.[11]

Since delivering their first helicopter shortly after the Federal Aviation Administration type certification of the F-28 model in April 1965, Enstrom produced over 1,100 helicopters, up to July 2011.[12][13] 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.[4][13]

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.

Enstrom ranked third in sales of piston helicopters, with 22 machines delivered in 2018 and 16 in 2019.[14]

Products

References
  1. Richards, Burnham. "Team". Enstrom Helicopter Corporation. Retrieved July 6, 2018.
  2. BNET Profile:
  3. '"Enstrom 480B". Flying Magazine. Retrieved 2019-04-10.
  4. Grady, Mary (January 15, 2013). "Enstrom Helicopters Sold To Chinese Firm". AVweb. Retrieved January 17, 2013.
  5. Stephen Pope, Enstrom 480B, Flying, September 2011, pp. 60-65
  6. Enstrom 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)
  7. Enstrom Website Archived November 23, 2009, at the Wayback Machine
  8. Flying, p. 64
  9. November 2008 Esquire Archived December 31, 2009, at the Wayback Machine
  10. The proposed military trainer would have been designated TH28. The company's proposal was not successful; Bell Helicopter won the bid. (Flying, p. 65)
  11. Experimental Aircraft Association. "Newsletter". eaa.org. Archived from the original on June 5, 2011. Retrieved July 6, 2018.
  12. "Rotor & Wing International - The Business Resource for Rotorcraft Management". Rotor & Wing International. Retrieved July 6, 2018.
  13. Flying, p. 63
  14. "Effondrement des livraisons d'hélicoptères en 2019". www.aerobuzz.fr (in French). February 20, 2020. Retrieved February 21, 2020.
  15. TH180 Archived March 1, 2014, at Archive.today - Enstrom training helicopter
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