M1 Heavy Tractor was a term used by the
United States Army
The United States Army (USA) is the land warfare, land military branch, service branch of the United States Armed Forces. It is one of the eight Uniformed services of the United States, U.S. uniformed services, and is designated as the Army o ...
during
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...
for several different models of "off the shelf" civilian
tracked tractors adopted for military use. Under the
Ordnance Department
The United States Army Ordnance Corps, formerly the United States Army Ordnance Department, is a sustainment branch of the United States Army, headquartered at Fort Lee, Virginia. The broad mission of the Ordnance Corps is to supply Army comb ...
, these tractors were meant to tow
artillery piece
Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, ...
s, and were not equipped with blades like their
Corps of Engineers counterparts. Later in the war, these tractors were replaced in the
prime mover
Prime mover may refer to:
Philosophy
*Unmoved mover, a concept in Aristotle's writings
Engineering
* Prime mover (engine), motor, a machine that converts various other forms of energy (chemical, electrical, fluid pressure/flow, etc) into energy ...
role by heavy trucks such as the
Mack NO
Mack may refer to:
People
* Mack (given name)
* Mack (surname)
* Reinhold Mack, German record producer and sound engineer, often credited as simply "Mack"
* Richard Machowicz (1965–2017), host of ''FutureWeapons'' and ''Deadliest Warrior'', know ...
or purpose-built "
High Speed Tractors" such as the
M4,
M5, or
M6. Some tractors were equipped with crane attachments for ammunition and material handling.
More than 1,000 were
leased
A lease is a contractual arrangement calling for the user (referred to as the ''lessee'') to pay the owner (referred to as the ''lessor'') for the use of an asset. Property, buildings and vehicles are common assets that are leased. Industrial ...
to the
Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
. They mostly used them to tow 122 mm, 152 mm and even 203 mm guns. It saw good service as a prime mover for artillery.
Variants
*Allis-Chalmers Model L
*G-022 Caterpillar Model 60
*G-89
Caterpillar RD7,
*G-98, G-107
Allis-Chalmers
Allis-Chalmers was a U.S. manufacturer of machinery for various industries. Its business lines included agricultural equipment, construction equipment, power generation and power transmission equipment, and machinery for use in industrial set ...
HD-10DW
*G-101
International Harvester TD-18
*G-126
Caterpillar D7
The Caterpillar D7 is a medium track-type tractor manufactured by Caterpillar Inc. and most commonly used as a bulldozer.
The D7 was first manufactured in 1938. A series of improved models were later produced, including the D7C in 1955, th ...
*G-153 Caterpillar D8
and perhaps others
Gallery
File:Allis-Chalmers Tractor, Crawler, Diesel, Model HD-10W.jpg, Allis-Chalmers Tractor, Crawler, Diesel, Model HD-10W from TM 9-787A
File:International Heavy Tractor, Crawler, Diesel, Model TD-18.jpg, International Heavy Tractor, Crawler, Diesel, Model TD-18 from TM 9-1777A
File:International Heavy Tractor, Crawler, Diesel, Model TD-18.second image.jpg, International Heavy Tractor, Crawler, Diesel, Model TD-18.second image from TM 9-1777A
File:Caterpillar Tractor, Crawler, Diesel, Model D7.jpg, Caterpillar Tractor, Crawler, Diesel, Model D7 from TB 5-9720-11, 1944
File:Caterpillar Tractor, Crawler, Diesel, Model D8.jpg, Caterpillar Tractor, Crawler, Diesel, Model D8 from TB 5-9720-11, 1944
See also
*
List of U.S. military vehicles by model number
The following is a (partial) listing of vehicle model numbers or M-numbers assigned by the United States Army. Some of these designations are also used by other agencies, services, and nationalities, although these various end users usually assig ...
*
List of U.S. military vehicles by supply catalog designation
*
M1 medium tractor
*
M1 light tractor
*
M2 Light Tractor
Prior to and during the Second World War the US Army
The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United Stat ...
*
Allis-Chalmers (See Military Machinery)
References
TM 9-1777A Heavy Tractor M1 International IHC TD-18TM 9-1777CTM 9-1773 Heavy Tractor M1, Caterpillar D7TM 9-787A Heavy Tractor M1, Allis-Chalmers HD-10W
TM 9-1787ATM 9-1787B
*
External links
jexiste.be
* ttp://www.o5m6.de/ac_hd10w.html Use of A-C HD-10W through Lend Lease in the Soviet Unionbr>Use of IHC TD-18 through Lend Lease in the Soviet Union
{{WWII US Soft Vehicles
Military vehicles of the United States