The M198 Medium Towed Howitzer is a 155mm field artillery howitzer that provides general support field artillery firing by providing both nuclear and nonnuclear firing. It is constructed of aluminum and steel, and is air transportable by CH-47/CH47D helicopter, and C-130 or larger fixed-wing aircraft.
The M198 155mm Medium Towed Howitzer is deployed in separate corps- and Army-level field artillery units, as well as in artillery battalions of light and airborne divisions. In the USMC, the M198 provides field artillery fire support for all Marine Corps Air Ground Task Force organizations. The M198 provides increased range, and improved reliability and maintainability over the former standard towed 155mm howitzer, the M114A2 Howitzer. The use of rocket-assisted projectiles significantly extends the range, lethality, and counterbattery fires of the direct support artillery battalions. The M198 fires all current and developmental 155mm ammunition.
TM 9-1025-211-20&P Unit Maintenance Manual (Including Repair Parts And Special Tools List) For Howitzer, Medium, Towed: 155-MM, M198
TM 9-1025-211-34 Direct Support And General Support Maintenance Manual For Howitzer, Medium, Towed: 155-MM, M198
TM 9-1025-211-34P Direct Support And General Support Maintenance Repair Parts And Special Tools List (Including Depot Maintenance Repair Parts And Special Tools) For Howitzer, Medium, Towed: 155-MM, M198
TM 9-1025-211-14 Transportability Guidance For Howitzer, Medium, Towed: 155-MM, M198, By Air, Highway, Water, And Rail
MWO 9-1025-211-30-2 Modification Work Order: Adding automated lifting system to the M198 Towed Howitzer
MWO 9-1025-211-30-3 Modification Work Order: Adding two or four ½ inch drain holes to the bottom carriage of the M198 Howitzer in the area where ring gear attaches
M198 155mm Medium Towed Howitzer.
Howitzer, 155mm, M198. Photo: Courtesy of Bob Pettit.
M198 Howitzer fired by 11th Marines, the only Artillery Regiment in 1st Marine Division.
Lance Cpl. Cody A. Morrison, Bravo Battery, 1st Battalion, 10th Marine Regiment, 2nd Marine Division cannon crewman and native of Castroville, TX, checks High Explosive rounds before they are fired through a M198 Howitzer at Hijudai Training Area, Japan, 30 January 2006. Each round equals about 50 hand grenades.