Hard Mobile Launcher
The Hard Mobile Launcher (HML) is a mobile radiation-hardened truck transporter erector launcher designed to facilitate the transport and launching of the MGM-134 Midgetman missile.
Hard Mobile Launcher
Public domain
- Name
- Small ICBM Hard Mobile Launcher
- Field
- transporter erector launcher
- Region
- United States
VALÉORINE Encyclopedia
VALÉORINE documentary reading
Documentary summary
The Hard Mobile Launcher (HML) is a mobile radiation-hardened truck transporter erector launcher designed to facilitate the transport and launching of the MGM-134 Midgetman missile.
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Documentary evidence
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Authority files
wikidata · Q30633114 · wikipedia · Hard Mobile Launcher
In this article
Key facts
Key facts
• Is Vehicle — yes • Name — Small ICBM Hard Mobile Launcher • Type — Mobile ICBM Launcher • Origin — United States • Service — Prototype only (1986–1991) • Used By — United States • Weight — 108400 kg • Length — 33.5 m • Speed — 55 mph on road • Engine — Rolls-Royce Perkins diesel • Engine Power — 1200 hp
Overview
Overview
• Illustration — Martin Marietta-Caterpillar prototype • Illustration — Boeing-Goodyear HML launcher during test phase • Illustration — U.S. Air Force National Museum plaque It can travel at speeds of up to on the road and it also has off-road capabilities. The vehicle also has a trailer mounted plow which can be used to dig the launcher into the earth in order to help protect it were it within the vicinity of a nuclear detonation. The vehicle weighs a total of, with a length of over 110 ft and it has the capability to transport objects weighing up to. It is powered by a Rolls-Royce Perkins diesel engine which produces and controls all 8 wheels using an electro-hydraulic transmission.
Design and testing
Design and testing
Two teams were assigned to develop a vehicle. Caterpillar developed a tracked tractor (Mobil-Trac System) while Martin Marietta was the system integrator and also built the Mobility Test Bed missile trailer. A second team consisting of Boeing Aerospace and Electronics' Loral Defense Systems Division (Goodyear Aerospace) built an eight wheel drive vehicle and trailer. The Air Force selected the Boeing-Loral prototype. Several vehicles were delivered to the US Air Force by December 1986. The Air Force tested the vehicle until 1991, after which development of the MGM-134 missile project ceased, leading to the project's cancellation.
NMUSAF Museum acquisition
NMUSAF Museum acquisition
Following the cancellation of the MGM-134 missile project, the last of the engineering models was acquired by the National Museum of the U.S. Air Force in Ohio in 1992. It is no longer on display and was given to the Defense Reutilization and Marketing Office. The Hard Mobile Launcher at Wright Patterson Air Force Base was auctioned and sold for scrap in July 2015. It was broken up in September 2015.
Hill Aerospace Museum
Hill Aerospace Museum
The Boeing-Loral prototype is currently stored at Hill Aerospace Museum in Utah
Places
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- United States
Primary material
Documents and archives
reference work
- “Hard Mobile Launcher”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
authority record
- Wikidata, structured authority record Q30633114: Hard Mobile Launcher
General reference · Wikidata
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.Return of the Hard Mobile Launcher. www.armscontrolwonk.com.
- 2.Small ICBM Hard Mobile Launcher.
- 3.Orlemann, Eric C. Caterpillar Chronicle : History of the Greatest Earthmovers. MotorBooks International. 9781610605779.
- 4.Jeffrey Lewis. Return of the Hard Mobile Launcher.
- 5.Event Details. www.govliquidation.com.
- 6.HUGE LAUNCHER COMES TO HILL. Deseret News. 30 May 1996.
References
Citations
References
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Hard Mobile Launcher is connected to 1 other published record in the VALÉORINE Encyclopedia.
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 17 August 2026.
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