Fairchild Hiller FH-1100

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
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

Development

Light Observation Helicopter (LOH)
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. 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.

Variants
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 operators
 Argentina
 Brazil
 Canada
 Ecuador
 El Salvador
 Panama
 United States

Specifications (FH-1100)

Data from Jane's All The World's Aircraft 1966–67[19] FAA.gov[20]

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 taks 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[21]

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 also

Aircraft of comparable role, configuration, and era

References
Notes
  2. Steve Remington. "The Cessna CH-1 Helicopter". CollectAir. Archived from the original on October 7, 2006. External link in |publisher= (help)
  3. George A. Spangenberg. Judith Spangenberg-Currier (ed.). "George A. Spangenberg Oral History". 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. "World Air Forces 1971 Argentina". flightglobal.com. Retrieved 12 March 2013.
  9. "The Rotary Wing Nostalgia". pprune.org. Retrieved 9 December 2014.
  10. "World Air Forces 1971 pg. 924". flightglobal.com. Retrieved 4 August 2018.
  11. "World Air Forces 1971 Brazilian Air Force". flightglobal.com. Retrieved 12 March 2013.
  12. "Força Aeronaval da Marinha do Brasil FH-1100". Retrieved 12 March 2013.
  13. "World Helicopter Market 1968 pg. 50". flightglobal.com. Retrieved 12 March 2013.
  14. "World Air Forces 1971 Fuerza Aerea Ecuatoriana". flightglobal.com. Retrieved 12 March 2013.
  15. Dr. James S. Corum (Summer 1998). "The Air War in El Salvador". Airpower Journal. Retrieved 2007-04-21.
  16. "World Air Forces 1975 Pg. 307". flightglobal.com. Retrieved 12 March 2013.
  17. "World Helicopter Market 1972 pg. 204". flightglobal.com. Retrieved 12 March 2013.
  18. "World Helicopter Market 1972 pg. 210". flightglobal.com. Retrieved 12 March 2013.
  19. 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.
  20. "Type Certificate Data Sheet No. H2WE, Revision 9" (PDF). Retrieved 2007-04-17.
  21. Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.
Bibliography
  • Munson, Kenneth (1969). Helicopters and other rotorcraft since 1907. New York: Macmillan. ISBN 0-7137-0610-4. OCLC 218444.
  • Apostolo, Giorgio (1984). The illustrated encyclopedia of helicopters. New York: Bonanza Books. ISBN 0-517-43935-2.
  • Donald, David (1998). The complete encyclopedia of world aircraft. New York: Barnes & Noble Books. ISBN 0-7607-0592-5. OCLC: 52598955.
  • 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.CS1 maint: extra text: authors list (link)
  • Jackson, Paul; Lindsay T. Peacock; Kenneth Munson (2004). Jane's all the world's aircraft, 2004-2005. Couldson, Surrey, UK: Jane's Information Group. ISBN 0-7106-2614-2.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.