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75-mm Howitzer file photo [5468]

75 mm How M1 Field Gun

Country of OriginUnited States
TypeField Gun
Length3.680 m
Barrel Length1.380 m
Weight607.000 kg
Ammunition Weight6.40 kg
Rate of Fire5 rounds/min
Range8.787 km
Muzzle Velocity381 m/s


ww2dbaseThe 75-mm Pack Howitzer M1 artillery pieces were designed in the United States in the 1920s with transportability in mind. The tube-and-breech artillery pieces were placed atop the M1 carriage with wooden wheels. They had a hydropneumatic recoil system, with recoil buffer and recuperator located under the barrel. They could be broken down into several pieces so that they could each be transported by six pack animals if the terrain was unsuitable for the M1 carriages. Each pack animal load ranged between 73 and 107 kilograms each; they were:

Although the 75-mm Pack Howizer M1 artillery pieces were made standard for the United States Army in 1927, they were produced in very low numbers; by 1940, only 91 were in service. In Sep 1940, however, production ramped up as the United States prepared for the potential involved in WW2. These post-Sep 1940 pieces differed from their predecessors by being placed atop M8 carriages, which had metal wheels with pneumatic tires. These new variants were also slightly changed so that they could be broken down to nine parts instead of only six, so that they could be dropped by parachutes.

A few of the M3 variants were also built, which were classified as field guns as opposed to pack howitzers, though only 349 were built. The more commonly seen pack howitzer variant had a total production count of 4,939 between Sep 1940 and Dec 1944.

During WW2, 75-mm Pack Howitzer M1 artillery pieces were used by both the United States Army as well as the United States Marine Corps; those used by the US Army were typically found in airborne units. Other Allies also received some examples of the 75-mm pack howitzers. 826 of them were sent to the United Kingdom and the Commonwealth forces, 637 to China, 68 to France, and 60 to various Latin American countries. Additionally, China also received 125 of the field howitzer variants.

After the war, they received the new designation M116.

Source: Wikipedia. ww2dbase

Last Major Revision: Jan 2008

75 mm How M1 Field Gun Interactive Map


A Chinese soldier posing next to a M1A1 75-mm Pack Howitzer atop M1 carriage, circa 1942Chinese soldiers firing a 75mm M1 howitzer during a training exercise, India, circa 1942
See all 21 photographs of 75 mm How M1 Field Gun

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Visitor Submitted Comments

1. Commenter identity confirmed Alan Chanter says:
12 Jan 2008 06:42:39 AM

At the beginning of World War 11 the USMC replaced the 75mm M1897A2 (Known as The French 75) with the M1A1 pack howitzer. These were issued to three of the four battalions of the two existing Marine Divisions intregal Artillery Regiments (the fourth battalion having the 105 mm M2A1 Howitzer). In Mid 1944 the Battalions equipped with the M1A1 were reduced to two(an additional 105mm Battalion having been added to the establishment in mid-1943 and were completely phased out in late 1945. The M1897A2 continued in service until mid-1942 in the Regimental Weapons Companies of the Marine Infantry Regiments (two guns per Company) but were then thought to be too heavy for man handling and were replaced by 75mm self-propelled M3 Halftracks (and eventually by the M7 105mm SPG from May 1945)

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75 mm How M1 Field Gun Photo Gallery
A Chinese soldier posing next to a M1A1 75-mm Pack Howitzer atop M1 carriage, circa 1942Chinese soldiers firing a 75mm M1 howitzer during a training exercise, India, circa 1942
See all 21 photographs of 75 mm How M1 Field Gun

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