Fort Sill in Comanche County, Oklahoma — The American South (West South Central)

U.S. M198 155mm Howitzer

Photographed By James Hulse, September 9, 2021

1. U.S. M198 155mm Howitzer Marker

Inscription. Introduced in 1978, the M198 replaced the World War II vintage M1/M114A2 155mm Howitzer for the U.S. Army and the Marine Corps. The howitzer has a split trail carriage and the wheels could be rotated up to allow the howitzer to rest on its firing platform. The top carriage with the howitzer tube could be rotated 360 degrees so that the tube rests above the trails for towing. The howitzer could also be towed with the tube facing to the rear. The M198 had a maximum range of 22,000 meters with conventional rounds and 30,000 meters with Rocket-Assisted Projectiles (RAP). Over 1,800 M198 Howitzers were produced by 1988 with approximately 800 of those going to allied countries. The howitzer saw extensive use during Operation Desert Storm with Army and Marine artillery units. It was replaced by the M777 Lightweight Howitzer beginning in 2005. This M198, named Thor, was used by Bravo Battery, 1st Battalion, 78th Field Artillery at Fort Sill.

Caliber - 6.21 in. - 155 mm
Weight - 15,758 lb - 7,154 kg
Range - 32,820 yd. - 30,000 m
Shell Weight - 95 lb. - 42.9 kg
Elevation (-2 to + 72 degrees) - (-35 to +1280 mils)
Traverse - 45 degrees - 800 mils
Muzzle Velocity - 2,165 ft/sec. - 660 m/sec.
Rate of Fire - 2-4 rpm
CCN# 74992

Erected by U.S. Army Field

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Artillery Museum. (Marker Number 700.)

Topics. This historical marker is listed in this topic list: War, 1st Iraq & Desert Storm. A significant historical year for this entry is 1978.

Location. 34° 40.022′ N, 98° 23.245′ W. Marker is in Fort Sill, Oklahoma, in Comanche County. Marker is at the intersection of Corral Road and Randolph Road, on the right when traveling west on Corral Road. The marker is located in the central section of Artillery Park at the U.S. Army Field Artillery Museum. Touch for map. Marker is in this post office area: Fort Sill OK 73503, United States of America. Touch for directions.

Other nearby markers. At least 8 other markers are within walking distance of this marker. South African G-5 155mm Field Gun/Howitzer (a few steps from this marker); Chinese Type 83 152mm Field Gun (a few steps from this marker); Austrian GHN-45 155mm Field Gun/Howitzer (a few steps from this marker); Soviet M1974 (2S1) 122mm Self-Propelled Howitzer (a few steps from this marker); U.S. M109A3 155mm Self-Propelled Howitzer (a few steps from this marker); U.S. M548 Cargo Carrier (within shouting distance of this marker); U.S. M110A2 8-inch Self-Propelled Howitzer (within shouting distance of this marker); Soviet M1954 (M-46) 130mm Field Gun (within shouting distance of this marker). Touch for a list and map of all markers in Fort Sill.

More about this marker. Marker and Museum are located on Fort Sill, an active

The U.S. M198 155mm Howitzer and Marker image. Click for full size.

Photographed By James Hulse, September 9, 2021

2. The U.S. M198 155mm Howitzer and Marker

U.S. military installation. The museum is open to the public, but appropriate identification is required for access for Fort Sill.

Also see . . . U.S. Army Artillery Museum. (Submitted on February 26, 2023, by James Hulse of Medina, Texas.)

This U.S. M198 155mm Howitzer is named “Thor” image. Click for full size.

Photographed By James Hulse, September 9, 2021

3. This U.S. M198 155mm Howitzer is named “Thor”

The side view of the U.S. M198 155mm Howitzer and Marker image. Click for full size.

Photographed By James Hulse, September 9, 2021

4. The side view of the U.S. M198 155mm Howitzer and Marker

Credits. This page was last revised on February 26, 2023. It was originally submitted on February 26, 2023, by James Hulse of Medina, Texas. This page has been viewed 90 times since then and 19 times this year. Photos: 1, 2, 3, 4. submitted on February 26, 2023, by James Hulse of Medina, Texas.