Sky Chopper

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choppers grub & pub
Big Sky, Montana

With over 70 beers (16 on tap), 40 wines and a wide variety of freshly prepared menu items, Choppers Grub & Pub has something for everyone. Come enjoy our games for all ages, which include Arcade Classics, billiards -- or video poker machines for adults 18 yr of age and older.
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Choppers Grub & Pub is open 6 days a week, Closed on Tuesdays, serving lunch and dinner from 11:30 - 9:00. The bar also opens at 11:30 and stays open later.
​No reservations are required, but we would like to know ahead of time if you have 10 or more people in your party in order to provide the best service possible. ​

​Contact us (406) 995-3830
We are located at 77 Lone Peak Drive in the Big Sky Town Center.
Join us for live poker 'Texas Holdem' every Wednesday, Thursday at 5:00PM and Sunday at 3:00PM.

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CH-54 Tarhe
A CH-54A carrying a 'Daisy Cutter' parachute bomb
RoleHeavy-lift cargo helicopter
ManufacturerSikorsky Aircraft
First flight9 May 1962
RetiredUS Army 1970s, National Guard 1980s
Statusretired
Primary userUnited States Army
Number built105
VariantsS-64 Skycrane

The Sikorsky CH-54 Tarhe is an American twin-engine heavy-lift helicopter designed by Sikorsky Aircraft for the United States Army. It is named after Tarhe, an 18th-century chief of the Wyandot Indian tribe whose nickname was 'The Crane'.[1] The civil version is the S-64 Skycrane.

Development[edit]

A CH-54A Tarhe carrying 2 UH-1 Hueys.
CH-54B carrying an M551 Sheridan tank, Redstone Arsenal, Alabama

Initial work on the Sikorsky 'sky-crane' helicopters began in 1958 with the piston-enginedSikorsky S-60. The first flight of the turboshaft-powered S-64 Skycrane was on 9 May 1962.[2]

The United States Army eventually purchased 105, designating them CH-54. Used in Vietnam for transport and downed-aircraft retrieval, it was highly successful. As of 2014, it holds the helicopter record for highest altitude in level flight at 11,000 m (36,000 ft), set in 1971[3] and fastest climb to 3,000[4] 6,000,[5] and 9,000[6] m (10,000, 20,000, and 30,000 ft).

The Skycrane can hold its cargo up and tight against its center spine to lessen drag and eliminate the pendulum effect when flying forward, as well as winch vehicles up and down from a hovering position, so the helicopter can deploy loads while hovering. Due to budget cuts, the Heavy Lift Helicopter (HLH) program was canceled and the CH-54s not upgraded with larger engines. The BoeingCH-47 Chinook gradually supplemented it in combat and eventually replaced it in Regular Army aviation units, although CH-54 Skycranes remained in Army National Guard service until 1991.

Today, Erickson Air-Crane of Central Point, Oregon, operates the largest fleet of S-64 helicopters in the world under the name Erickson S-64 Aircrane. These can be equipped with water-dropping equipment (some also have foam/gel capability) for firefighting duties worldwide. After obtaining the type certificate and manufacturing rights in 1992, Erickson remains the manufacturer.

Variants[edit]

Sikorsky Skycrane CH-54B with landing gear modified for soft ground.
Copperfield
YCH-54A
Preproduction aircraft, six built.[7]
CH-54A
Production model powered by two 4,500 shp (3,400 kW) Pratt & Whitney T73-P-1 turboshafts, 54 built.[7]
CH-54B
Heavier version of the CH-54A with two 4,800 shp (3,600 kW) T-73-P-700 turboshafts and twin-wheeled main undercarriage, 37 ordered, 29 built.[8]
S-64B
In 1968 Sikorsky proposed a three-engined growth version with upgraded rotor and gearbox. This was not proceeded with but did form the basis for the CH-53E Super Stallion.[9]

Operators[edit]

United States
  • NASA[10][11]
  • United States Army[12]

Surviving aircraft[edit]

A large number of surviving airframes exist in flyable condition as well as in museum collections worldwide.

Specifications (CH-54B)[edit]

General characteristics

Sky Chopper 13

  • Crew: 3
  • Capacity: 20,000 lb (9,072 kg) payload
  • Length: 88 ft 6 in (26.97 m)
  • Height: 25 ft 5 in (7.75 m)
  • Empty weight: 19,800 lb (8,981 kg)
  • Max takeoff weight: 47,000 lb (21,319 kg)
  • Powerplant: 2 × Pratt & Whitney T73-P-700turboshaft engines, 4,800 shp (3,600 kW) each
  • Main rotor diameter: 72 ft 0 in (21.95 m)
  • Main rotor area: 4,071.5 sq ft (378.25 m2)
  • Blade section: - NACA 0011 mod[13]

Performance

  • Maximum speed: 130 kn (150 mph, 240 km/h)
  • Cruise speed: 100 kn (120 mph, 190 km/h)
  • Range: 200 nmi (230 mi, 370 km)
  • Rate of climb: 1,330 ft/min (6.8 m/s)

See also[edit]

Related development

Aircraft of comparable role, configuration, and era

Related lists

Esky Chopper

References[edit]

Notes
  1. ^Ohio History Central page on Tarhe
  2. ^Taylor 1976, p. 386.
  3. ^'FAI Record ID #9918 - Altitude in horizontal flight. Class E-1 (Helicopters), turbineArchived 5 January 2015 at the Wayback Machine' Fédération Aéronautique Internationale (FAI) Retrieved: 21 September 2014.
  4. ^'FAI Record ID #9942 - Time to climb to a height of 3 000 m. Class E-1 (Helicopters), turbineArchived 23 June 2015 at the Wayback Machine' Fédération Aéronautique Internationale (FAI). Retrieved: 21 September 2014.
  5. ^'FAI Record ID #9957 - Time to climb to a height of 6 000 m. Class E-1 (Helicopters), turbineArchived 23 June 2015 at the Wayback Machine'. Fédération Aéronautique Internationale (FAI). Retrieved: 21 September 2014.
  6. ^'FAI Record ID #9960 - Time to climb to a height of 9 000 m. Class E-1 (Helicopters), turbineArchived 24 June 2015 at the Wayback Machine'. Fédération Aéronautique Internationale (FAI). Retrieved: 21 September 2014.
  7. ^ abHarding 1990, p.243.
  8. ^'Helis.com'. CH-54B Tarhe. Retrieved 30 July 2017.
  9. ^'S-64 Skycrane (CH-54 Tarhe)'. Sikorsky Product History. Retrieved 30 July 2017.
  10. ^'What Is a Helicopter?'. nasa.gov. Retrieved 26 January 2013.
  11. ^'Sikorsky CH – 54B Skycrane Helicopter'. nasa.gov. Archived from the original on 16 February 2013. Retrieved 26 January 2013.
  12. ^'Sikorsky CH-54 Tarhe Flying crane'. www.Military-Today.com. Retrieved 26 January 2013.
  13. ^Lednicer, David. 'The Incomplete Guide to Airfoil Usage'. m-selig.ae.illinois.edu. Retrieved 16 April 2019.
Bibliography

Skylight Chopper

  • Francillon, René J. (Spring 1991). 'The Army Guard's Weightlifter'. World Air Power Journal. 5: 36–41.
  • Harding, Stephen (1990). U.S. Army Aircraft since 1947. Shrewsbury, UK: Airlife. ISBN1-85310-102-8.
  • Taylor, John W. R. (1976). Jane's All the World's Aircraft 1976–77. London: Jane's Yearbooks. ISBN0-354-00538-3.

External links[edit]

Wikimedia Commons has media related to CH-54 Tarhe (Skycrane).
Sky
  • The short film STAFF FILM REPORT 66-2A (1966) is available for free download at the Internet Archive
  • The short film STAFF FILM REPORT 66-21A (1966) is available for free download at the Internet Archive
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