Fairchild Hiller FH-1100

Summary

The Fairchild Hiller FH-1100 is a single-engine, single two-bladed rotor, light helicopter which began as a design entry into the United States Army's Light Observation Helicopter program as the Hiller YOH-5. The Hiller Model 1100 was not selected but after Hiller Aircraft was purchased by Fairchild Stratos in 1964, the Model 1100 was successfully marketed as a civilian helicopter, the FH-1100. The type certificate is now held by the FH1100 Manufacturing Corporation of Century, Florida.[1]

FH-1100
Fairchild-Hiller FH1100 Le Bourget 03.06.67.jpg
File:Model FH-1100 on display at the Paris Air Show at Paris Le Bourget Airport in June 1967
Role Helicopter
Manufacturer Fairchild Hiller
First flight 21 January 1963
Introduction 1966
Status Currently in use
Primary users Okanagan Helicopters
Royal Thai Police
Produced 1966-1973
Number built 253

DevelopmentEdit

Light Observation Helicopter (LOH)Edit

 
YOH-5A LOH

In October 1960, the Army submitted a request for proposals (RFP) for the Light Observation Helicopter (LOH). Hiller Aircraft (Hiller), along with 12 other manufacturers, including Bell Helicopter (Bell) and Hughes Tool Co. Aircraft Division (Hughes), entered the competition,[2] submitting their designs to a Navy team for evaluation. Hiller submitted the Model 1100, which was recommended by the Navy team and eventually selected as one of three winners of the design competition by the Army in May 1961.[3] The Army designated the Model 1100 design as the YOH-5.[4][5]

Detailed design work began in November 1961, and the Model 1100 prototype made its maiden flight on 21 January 1963. Hiller produced a total of five copies of the Model 1100 to submit to the Army for the Test and Evaluation phase at Camp Rucker, Alabama in 1963. After the test and evaluation, the Bell YOH-4 was eliminated, and Hiller and Hughes competed in a program cost analysis bid for the contract. In 1965, Hiller was underbid by Hughes and the Army selected Hughes' YOH-6. Although Hiller formally protested, Hughes was awarded a production contract for the OH-6 Cayuse.[6]

In 1967, when the Army reopened the LOH competition for bids because Hughes Tool Co. Aircraft Division could not meet the contractual production demands.[citation needed] Fairchild-Hiller decided not to resubmit their bid with the YOH-5A, instead choosing to continue with commercial marketing of their civilian version, the FH-1100.[7]

The FH-1100 was produced until 1973. In 2000, the Type Certificate was purchased by FH1100 Manufacturing Corporation. FH1100 Manufacturing conducts remanufacturing and training but has not received a production certificate for the FH-1100, which it now calls the FHoenix.[citation needed]

VariantsEdit

Hiller Model 1100
Four-seat prototype powered by an Allison 250-C10 engine and certified in May 1964.
FH-1100
Civil production five-seat model powered by an Allison 250-C18 engine and certified in November 1966. Later production fitted with an Allison 250-C20B engine. 246-built
RH-1100A Pegasus
Updated civil version, built and marketed by Rogerson Hiller Helicopters.
RH-1100M
Updated military version, built and marketed by Rogerson Hiller Helicopters.
YOH-5A
United States Army designations for five Model 1100 for evaluation powered by a 250shp Allison T-63-A-5 engine.

Former operatorsEdit

  Argentina
  Brazil
  Canada
  Ecuador
  El Salvador
  Panama
  Thailand
  United States

Specifications (FH-1100)Edit

Data from Jane's All The World's Aircraft 1966–67[21] FAA.gov[22]

General characteristics

  • Crew: 1
  • Capacity: 4 pax
  • Length: 27 ft 9.5 in (8.471 m) fuselage
  • Width: 4 ft 4 in (1.32 m) fuselage
  • Height: 9 ft 3.5 in (2.832 m)
  • Empty weight: 1,370 lb (621 kg)
  • Max takeoff weight: 2,750 lb (1,247 kg)
  • Fuel capacity: 69 US gal (57 imp gal; 261 l) internal fuel, with provision for 66 US gal (55 imp gal; 250 l) in two auxiliary tanks on starboard rear fuselage.
  • Powerplant: 1 × Allison Model 250-C18 turboshaft engine, 317 shp (236 kW) for take-off
  • Main rotor diameter: 35 ft 5 in (10.80 m)
  • Main rotor area: 981 sq ft (91.1 m2)
  • Blade section: - NACA 63-015[23]

Performance

  • Cruise speed: 127 mph (204 km/h, 110 kn) maximum at 5,000 ft (1,524 m)
122 mph (106 kn; 196 km/h) economical
  • Range: 348 mi (560 km, 302 nmi) max payload, no reserve
  • Ferry range: 668 mi (1,075 km, 580 nmi) with ferry tanks, minimum payload no reserve
  • Service ceiling: 14,200 ft (4,300 m)
  • Hover ceiling IGE: 13,400 ft (4,084 m)
  • Hover ceiling OGE: 8,400 ft (2,560 m)
  • Rate of climb: 1,600 ft/min (8.1 m/s) maximum
  • Vertical rate of climb: 800 ft/min (4.06 m/s)
  • Disk loading: 2.8 lb/sq ft (14 kg/m2)

See alsoEdit

Aircraft of comparable role, configuration, and era

ReferencesEdit

Notes
  1. ^ "FH1100 Manufacturing Corp".
  2. ^ Steve Remington. "The Cessna CH-1 Helicopter". CollectAir. Archived from the original on October 7, 2006. {{cite web}}: External link in |publisher= (help)
  3. ^ George A. Spangenberg. Judith Spangenberg-Currier (ed.). "George A. Spangenberg Oral History". {{cite journal}}: Cite journal requires |journal= (help)
  4. ^ Robert Beechy (2005-11-18). "U.S Army Aircraft Acquisition Programs". Uncommon Aircraft 2006. Archived from the original on September 20, 2006.
  5. ^ "Rotary Aircraft Designation Crosswalk". GlobalSecurity.org.
  6. ^ Harding, Stephen (1997). U.S. Army Aircraft Since 1947. Atglen, PA, USA: Schiffer Publishing Ltd. p. 148. ISBN 076430190X.
  7. ^ Michael J. Hirschberg and David K. Daley (2000-07-07). "US and Russian Helicopter Development In the 20th Century". Archived from the original on October 4, 2006.
  8. ^ Best Air-Britain Archive September 2014, pp. 119–120
  9. ^ "World Air Forces 1971: Argentina: Argentine Army Aviation Command". Flight International. flightglobal.com. 24 June 1971. p. 924. Archived from the original on 16 June 2018. Retrieved 12 March 2013.
  10. ^ a b c Best Air-Britain Archive September 2014, p. 120
  11. ^ Best Air-Britain Archive September 2014, p. 117
  12. ^ a b "World Air Forces 1971: Brazil". Flight International. flightglobal.com. 24 June 1971. p. 925. Archived from the original on 17 July 2018. Retrieved 4 August 2018.
  13. ^ "World Helicopter Market 1968: Canada: Okanagan Helicopters Ltd". Flight International. flightglobal.com. 11 July 1968. p. 50. Archived from the original on 26 July 2019. Retrieved 12 March 2013.
  14. ^ "World Air Forces 1971: Ecuador: Fuerza Aerea Ecuatoriana". Flight International. flightglobal.com. 24 June 1971. p. 927. Archived from the original on 22 January 2018. Retrieved 12 March 2013.
  15. ^ a b c Best Air-Britain Archive September 2014, p. 121
  16. ^ Dr. James S. Corum (Summer 1998). "The Air War in El Salvador". Airpower Journal. Retrieved 2007-04-21.
  17. ^ "World Air Forces 1975: Panama". Flight International. flightglobal.com. 28 August 1975. p. 307. Archived from the original on 4 April 2019. Retrieved 12 March 2013.
  18. ^ Best Air-Britain Archive September 2014, p. 118
  19. ^ "World Helicopter Market 1972: California: California Highway Patrol". Flight International. flightglobal.com. 10 August 1972. p. 204. Archived from the original on 30 September 2014. Retrieved 12 March 2013.
  20. ^ "World Helicopter Market 1972: New York: Nassau County Police Department". Flight International. flightglobal.com. 10 August 1972. p. 210. Archived from the original on 22 January 2018. Retrieved 12 March 2013.
  21. ^ Taylor, John W.R., ed. (1966). Jane's All the World's Aircraft 1966-67 (57th ed.). London: Sampson Low, Marston & Co. Ltd. p. 242.
  22. ^ "Type Certificate Data Sheet No. H2WE, Revision 9" (PDF). Retrieved 2007-04-17.
  23. ^ Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.
Bibliography
  • Apostolo, Giorgio (1984). The illustrated encyclopedia of helicopters. New York: Bonanza Books. ISBN 0-517-43935-2.
  • Best, Martin S. (September 2013). "A History of the Fairchild Hiller FH-1100 Helicopter: Part 2: Development and Operation of the FH-1100". Air-Britain Archive. pp. 107–122. ISSN 0262-4923.
  • Donald, David (1998). The complete encyclopedia of world aircraft. New York: Barnes & Noble Books. ISBN 0-7607-0592-5. OCLC: 52598955.
  • Jackson, Paul; Peacock, Lindsay T.; Munson, Kenneth, eds. (2004). Jane's All the World's Aircraft, 2004-2005. Couldson, Surrey, UK: Jane's Information Group. ISBN 0-7106-2614-2.
  • Munson, Kenneth (1969). Helicopters and other rotorcraft since 1907. New York: Macmillan. ISBN 0-7137-0610-4. OCLC 218444.
  • Taylor, John W. R. (1966). Jane's All The World's Aircraft 1966–67. London: Sampson Low, Marston & Company.
  • Taylor, John W. R., ed. (1971). Jane's All The World's Aircraft 1971-72. London: Jane's Yearbooks. ISBN 0-354-00094-2.

External linksEdit

  • FH1100 Manufacturing, current Type Certificate holder.
  • RH-1100 Hornet at airwar.ru
  • FAA Type Certificate