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Boeing Vertol XCH-62
| XCH-62 HLH | |
|---|---|
| Type | Heavy-lift helicopter |
| Manufacturer | Boeing Vertol |
| Status | Program terminated |
| Primary user | United States Army |
| Number built | 1 (never completed) |
| Developed from | CH-47 Chinook |
The Boeing Vertol XCH-62 (Model 301) was a three turbine-engined, heavy-lift helicopter project for the United States Army. Approved in 1971, only one aircraft was built before it was cancelled in 1974. An attempt by NASA to resurrect the program was aborted in 1983.
Development
While the Chinook is a big brute of a helicopter by American standards, it is dwarfed by the huge Soviet-Russian heavy-lift helicopters designed by the Mil organization, and for a long time Boeing and the US military had an urge to match or top the Mil heavy lifters.[1]
In the late 1960s, Boeing came up with designs for machines with broad similarities to the Sea Knight and Chinook, but about twice the size of the Chinook in terms of linear dimensions. Proposed machines included the "Model 227" transport and the "Model 237" flying crane.[1]
Following award of an Army contract for a prototype of a "Heavy Lift Helicopter (HLH)" in 1973, Boeing did move forward on building an oversized flying crane machine, the "XCH-62". Rotor diameter was to be 28 meters (92 feet), fuselage length 27.2 meters (89 feet 3 inches), and footprint length 49.5 meters (162 feet 3 inches). Its widely-spaced landing gear would allow it to straddle heavy cargoes such as armored vehicles, and still carry twelve troops in its slender fuselage. Boeing also considered selling a commercial version, the "Model 301".[1]
The XCH-62 prototype was in an advanced state of assembly in 1975, being readied for a planned initial flight the next year, when the US Congress cut funding for the program in August. The CH-53E Super Stallion/Sikorsky S-80 was felt to give adequate heavy-lift capability for US forces.[1]
The incomplete XCH-62 prototype (73-22012} was stored at US Army Aviation Museum at Fort Rucker, Alabama. It was to be pulled out of storage in the mid-1980s when the Army, the US National Aeronautics & Space Administration (NASA), and the Defense Advanced Research Projects Agency (DARPA) collaborated on a scheme to finish the XCH-62 for experimental flights. However, Congress declined funding, and it didn't happen.[1]
Specifications (XCH-62A)
This aircraft article is missing some (or all) of its specifications. If you have a source, you can help Wikipedia by adding them.- Engines: 3 x Allison T701 of 5945kW
- Gross Weight: 70 Ton
- Length: 28 m
- Height: 11 m
References
The initial version of this article was based on a public domain article from Greg Goebel's Vectorsite.
External links
- XCH-62 Boeing Vertol HLH
- XCH-62 page on Globalsecurity.org
- Boeing Vertol 301 / XCH-62 page on Avia.Russian.ee
See also
Related development
Comparable aircraft
Designation sequence
Related lists
See also
Lists relating to aviation | |
|---|---|
| General | Timeline of aviation · Aircraft · Aircraft manufacturers · Aircraft engines · Aircraft engine manufacturers · Airports · Airlines |
| Military | Air forces · Aircraft weapons · Missiles · Unmanned aerial vehicles (UAVs) · Experimental aircraft |
| Notable incidents and accidents | Military aviation · Airliners · General aviation · Famous aviation-related deaths |
| Records | Flight airspeed record · Flight distance record · Flight altitude record · Flight endurance record · Most produced aircraft |
Lists relating to aviation | |
|---|---|
| General | Timeline of aviation · Aircraft · Aircraft manufacturers · Aircraft engines · Aircraft engine manufacturers · Airports · Airlines |
| Military | Air forces · Aircraft weapons · Missiles · Unmanned aerial vehicles (UAVs) · Experimental aircraft |
| Notable incidents and accidents | Military aviation · Airliners · General aviation · Famous aviation-related deaths |
| Records | Flight airspeed record · Flight distance record · Flight altitude record · Flight endurance record · Most produced aircraft |
Template:USAF helicopters Template:Boeing Vertol
| This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Boeing Vertol XCH-62". |
