Olive-Drab.com Military HQ
What's New? | Olive-Drab Directory | Adv Search  
  Home >> Military Vehicles >> Charts >> Artillery >> M-2 Long Tom

Vehicles Weapons History Uniforms/Gear Rations War Dogs Photos/Video Info/Intel FAQ Store Facebook/Blogs

Loading...
Military Theme
T-Shirts & Stuff
Visit Olive-Drab.com's sister site for
over 8,000 free military vehicle photos!

155mm Towed Gun 'Long Tom'

Over the course of military history many field artillery pieces have been named "Long Tom". However the one most often associated with the name is the long-barrel towed 155mm field gun used by corps level artillery in World War II and Korea.

155mm Long Tom at Artillery Park, Camp Mabry, TX, 30 January 2006
155mm Long Tom at Artillery Park, Camp Mabry, TX, 30 January 2006. Photo: Courtesy of Bob Pettit

Today in WW II: 23 Jul 1940 American Bantam and Willys-Overland submit the only two bids for the Quartermaster Corps light reconnaissance and command cars, the origin of the military jeep.  More 
23 Jul 1941 Original World War II contract for jeeps awarded to Willys with Ford added Nov 1941 to increase production.
23 Jul 1945 Submarine USS Barb [SS-220] destroys a Japanese locomotive and supply train at Patience Bay off the coast of Karafuto, Japan, the only known such attack by a submarine.
Visit the Olive-Drab.com World War II Timeline for day-by-day events 1939-1945! See also WW2 Books.

M1, M2, M59 Towed 155mm Gun 'Long Tom'

The 155mm Long Tom was originally designed by the French during World War I, designated the M1917, M1917A1 or M1918 GPF (Grande Puissance, Filloux). The U.S. modification was the M1 155mm Field Gun, followed by the M1A1 employed by coast defense and corps artillery battalions. In 1940 the gun was redesigned with the pheumatic tire carriage and other improvements, redesignated the M2 155 mm Field Gun. The M2 was the backbone of heavy artillery with thousands serving in both Europe and Pacific Theaters of Operation. It was later redesignated as the M59 155mm Towed Gun.

The standard prime mover for the M2 "Long Tom" 155mm gun was a heavy truck (See Mack NO) or, later in WW II, the tracked M4 or M5 prime mover (see M4 High Speed Tractor), which was also an ammunition carrier. When the standard prime mover was not available, a "Long Tom" could be pulled by any heavy truck. A two wheel limber mounted under the trail ends and connected to the standard military pintle hook. Approximately 30 minutes was required to emplace a "Long Tom" upon arrival at a firing position.

The "Long Tom" weighed 30,600 pounds, had a split trail and eight pneumatic tires on two axles, was moved by a tractor, and was served by a combined crew of 14 or 15 men.

The 155mm "Long Tom" fired the same 95 to 100-pound HE, smoke, and gas projectile ammunition as the 155mm Howitzer, but with greater range and accuracy. Although designed for indirect fire at ranges of 10-14 miles, "Long Toms" have been used for direct aimed fire under extraordinary circumstances, such as reduction of Japanese cave fortifications on Peleliu during WW II.

During World War II, the gun was featured on a war production poster, "Defense Needs Rubber" due to its use of ten tires. The 155mm "Long Tom" has been utilized by U.S. allies around the world and remains in service in the 21st Century.

Specifications of the 155mm Gun 'Long Tom' M1, M2, M59

Crew15
Weight30,600 lbs. with limber
Height10 feet
Width8 feet
Length45 feet
Max rate of fire2 rpm
Sustained rate of fire1/2 rpm
Max range14 miles (22000 m)
ManufacturerWatervliet Arsenal
ManualsTM 9-1345, TM 9-1350

Early in WW II during the 1942 Second Army maneuvers in middle Tennessee, a 155mm Long Tom crew sets up in a camouflaged position.
Early in WW II during the 1942 Second Army maneuvers in middle Tennessee, a 155mm Long Tom crew sets up in a camouflaged position.

155mm Long Tom artillery units train in England during WW II
155mm Long Tom artillery units train in England during WW II.

155mm Long Tom arriving by rail at Hampton Roads Port of Embarkation, Newport News, VA, 6 August 1943
155mm "Long Tom" arriving by rail at Hampton Roads Port of Embarkation, Newport News, VA, 6 August 1943.

A 155mm Long Tom of the 9th Defense Battalion, XIV Corps USMC drawn by an IH TD18 tractor in the mud of Rendova (Central Solomons), June-July 1943.
A 155mm "Long Tom" of the 9th Defense Battalion, XIV Corps USMC drawn by an International Harvester TD-18 tractor in the mud of Rendova (Central Solomons), June-July 1943.

155mm Long Tom in tow behind an M4 High Speed Tractor
155mm Long Tom in tow behind an M4 High Speed Tractor.

M1 155mm Long Tom at the U.S. Army Ordnance Museum, Aberdeen Proving Ground, MD
M1 155mm "Long Tom" at the U.S. Army Ordnance Museum, Aberdeen Proving Ground, MD.

Find at Amazon:  Military Issue equipment, clothing, boots, MREs, MOLLE gear and much more.

  Home >> Military Vehicles >> Charts >> Artillery >> M-2 Long Tom What's New? | Olive-Drab Directory | Adv Search