In the 1980s the Enstrom Helicopter Company was producing two helicopters, both powered by horizontally-opposed piston engines. When the United States Army revealed a requirement for a turbine-powered training helicopter, the company designed a larger, turbine-powered version of its 280 Shark. The proposed unit was designated TH28 (TH for "training helicopter" derived from the 28(0), since the Army's proposal was NTH, "new training helicopter").
The Army contract effort was not successful,[2] but the company effort looked promising enough that management committed to continue with a commercial version, which was introduced in 1993. Its power was provided by the C20W variant of the Rolls-Royce Model 250turboshaft engine.
Design
The 480 fuselage consists of a welded steel-tube framework with aluminum cover and tailcone. The pilot controls the aircraft from the left seat, which is unusual for helicopters. The aircraft does not have a hydraulic system; a trim system absorbs rotor feedback and allows the pilot to position the desired stick setting.[3] The 480B engine is capable of producing 420 shp, but in this application it is derated to 305 shp for 5 minutes and 277 continuous shp, which is available to 13,000 MSL on a standard day. Thus hot-temperature or high-altitude operations have a considerable degree of power available. The engine drives a three-bladed rotor of 32 feet diameter and a tail rotor of 5 feet diameter. The main rotor and hubs weigh a total of 300 pounds, so there is considerable inertia in the system during a loss of power. Autorotation landings are uneventful.[4]
Variants
480
Five-seat civil version based on the Enstrom TH-28, certified in November 1993.[5]
Enstrom 480B in flight
480B
Enhanced and with increased gross weight (3000 lb) and power limits, certified in February 2001 in the US.[5] and in February 2019 in Canada.[6] The gross weight and useful load were increased by approximately 150 pounds.
480B Guardian
480B configured for police or law enforcement operations, fitted with a front-mounted camera and searchlight.[7]
TH-28
Based on the Enstrom 280FX with a turbine engine, a larger cabin and larger horizontal and vertical stabilizers. Certified in September 1992[5] Military training, light patrol version, six built.
Operators
Civil operators
The aircraft is operated by a large number of small commercial and flight training operators, most operating one or two aircraft.
^Warnes, Alan (2018-06-28). "Czech CLV flight training centre receives first two Enstrom 480B-Gs". IHS Jane's Defence Weekly. IHS Markit. Retrieved 17 September 2018.
^"Equatorial Guinea Air Force". Retrieved 12 February 2013.
^"Enstrom History". enstromhelicopter.com. Retrieved 12 February 2013.
^"Enstrom ships second TH-480B for the JGSDF". shephardmedia.com. Retrieved 12 February 2013.
^"Deliveries of Enstrom 480 to Royal Thai Army pass the half-way mark". helihub.com. Retrieved 12 February 2013.
^"World Air Forces 2021". FlightGlobal. 4 December 2020. Retrieved 10 August 2021.
^Rudi, Hanneli. "Politsei sai ohtralt peavalu põhjustanud kopterist lahti". www.postimees.ee (in Estonian). Retrieved 23 June 2018.
Federal Aviation Authority Type Certificate No.H1CE
Frawley, Gerard (2003). The International Directory of Civil Aircraft, 2003-2004. Fyshwick, ACT, Australia: Aerospace Publications Pty Ltd. p. 44. ISBN1-875671-58-7.
External links
Wikimedia Commons has media related to Enstrom 480.
Enstrom page on The Helicopter History site
Enstrom in Ukraine
March 15, 2023
enstrom, small, light, helicopter, produced, enstrom, helicopter, corporation, jgsdfrole, light, helicoptermanufacturer, enstrom, helicopter, corporationfirst, flight, october, 1989introduction, 1993produced, 1993, 2022number, built, july, 2011, developed, fro. The Enstrom 480 is a small light helicopter produced by the Enstrom Helicopter Corporation 1 Enstrom 480A Enstrom 480 of the JGSDFRole Light helicopterManufacturer Enstrom Helicopter CorporationFirst flight 7 October 1989Introduction 1993Produced 1993 2022Number built 142 as of July 2011 Developed from Enstrom 280 Contents 1 Design and development 2 Design 3 Variants 4 Operators 4 1 Civil operators 4 2 Military and government operators 4 3 Former operators 5 Specifications 480 6 See also 7 References 8 External linksDesign and development EditIn the 1980s the Enstrom Helicopter Company was producing two helicopters both powered by horizontally opposed piston engines When the United States Army revealed a requirement for a turbine powered training helicopter the company designed a larger turbine powered version of its 280 Shark The proposed unit was designated TH28 TH for training helicopter derived from the 28 0 since the Army s proposal was NTH new training helicopter The Army contract effort was not successful 2 but the company effort looked promising enough that management committed to continue with a commercial version which was introduced in 1993 Its power was provided by the C20W variant of the Rolls Royce Model 250 turboshaft engine Design EditThe 480 fuselage consists of a welded steel tube framework with aluminum cover and tailcone The pilot controls the aircraft from the left seat which is unusual for helicopters The aircraft does not have a hydraulic system a trim system absorbs rotor feedback and allows the pilot to position the desired stick setting 3 The 480B engine is capable of producing 420 shp but in this application it is derated to 305 shp for 5 minutes and 277 continuous shp which is available to 13 000 MSL on a standard day Thus hot temperature or high altitude operations have a considerable degree of power available The engine drives a three bladed rotor of 32 feet diameter and a tail rotor of 5 feet diameter The main rotor and hubs weigh a total of 300 pounds so there is considerable inertia in the system during a loss of power Autorotation landings are uneventful 4 Variants Edit480 Five seat civil version based on the Enstrom TH 28 certified in November 1993 5 Enstrom 480B in flight 480B Enhanced and with increased gross weight 3000 lb and power limits certified in February 2001 in the US 5 and in February 2019 in Canada 6 The gross weight and useful load were increased by approximately 150 pounds 480B Guardian 480B configured for police or law enforcement operations fitted with a front mounted camera and searchlight 7 TH 28 Based on the Enstrom 280FX with a turbine engine a larger cabin and larger horizontal and vertical stabilizers Certified in September 1992 5 Military training light patrol version six built Operators EditCivil operators Edit The aircraft is operated by a large number of small commercial and flight training operators most operating one or two aircraft Military and government operators Edit Czech Republic CLV flight training 8 Equatorial GuineaMilitary of Equatorial Guinea 9 IndonesiaIndonesian National Police 10 JapanJapan Ground Self Defense Force 11 ThailandRoyal Thai Army 12 VenezuelaVenezuelan Air Force 13 Former operators Edit CanadaYork Regional Police EstoniaPolice and Border Guard Aviation Group 14 Specifications 480 EditData from The International Directory of Civil Aircraft 2003 2004 15 General characteristicsCrew one Capacity four passengers Length 29 ft 10 in 9 09 m Height 9 ft 7 in 2 92 m Empty weight 1 675 lb 760 kg Gross weight 2 850 lb 1 293 kg Powerplant 1 Rolls Royce Model 250 C20W turboshaft 285 hp 215 kW Main rotor diameter 32 ft 0 in 9 75 m Main rotor area 804 sq ft 74 7 m2 Performance Cruise speed 131 mph 211 km h 114 kn Range 435 mi 700 km 378 nmi Service ceiling 13 000 ft 3 962 m Rate of climb 1 500 ft min 7 62 m s See also EditRelated development Enstrom F 28 Enstrom 280Aircraft of comparable role configuration and era Robinson R66 Schweizer S 333 Schweizer S 434References Edit Apostolo Giorgio The Illustrated Encyclopedia of Helicopters pages 64 65 Bonanza Books New York 1984 ISBN 0 517 43935 2 Bell Helicopter Company won the bid with a militarized version of its 206 JetRanger Stephen Pope Enstrom 480B Flying September 2011 pp 60 65 Failure of the trim system would require a fifteen pound control force Flying p 65 Flying p 62 it was a nonevent that seemed more like a slightly steeper than normal approach with a gentle touchdown a b c Federal Aviation Administration 23 May 2018 Type Certificate Data Sheet No H1CE PDF Retrieved 8 February 2019 Drinkwater Steve 7 February 2019 Enstrom 480B Helicopter Cleared for Takeoff in Canada copanational org Retrieved 8 February 2019 Police Chief magazine website Warnes Alan 2018 06 28 Czech CLV flight training centre receives first two Enstrom 480B Gs IHS Jane s Defence Weekly IHS Markit Retrieved 17 September 2018 Equatorial Guinea Air Force Retrieved 12 February 2013 Enstrom History enstromhelicopter com Retrieved 12 February 2013 Enstrom ships second TH 480B for the JGSDF shephardmedia com Retrieved 12 February 2013 Deliveries of Enstrom 480 to Royal Thai Army pass the half way mark helihub com Retrieved 12 February 2013 World Air Forces 2021 FlightGlobal 4 December 2020 Retrieved 10 August 2021 Rudi Hanneli Politsei sai ohtralt peavalu pohjustanud kopterist lahti www postimees ee in Estonian Retrieved 23 June 2018 Frawley Civil 2003 p Federal Aviation Authority Type Certificate No H1CE Frawley Gerard 2003 The International Directory of Civil Aircraft 2003 2004 Fyshwick ACT Australia Aerospace Publications Pty Ltd p 44 ISBN 1 875671 58 7 External links Edit Wikimedia Commons has media related to Enstrom 480 Enstrom 480B product page Enstrom page on The Helicopter History site Enstrom in Ukraine Retrieved from https en wikipedia org w index php title Enstrom 480 amp oldid 1136479114, wikipedia, wiki, book, books, library,
