The High Mobility Multipurpose Wheeled Vehicle (HMMWV), better known as the Humvee, is a military 4WD motor vehicle created by AM General. It has largely supplanted the roles formerly served by smaller Jeeps such as the M151 MUTT, the M561 "Gama Goat", their M718A1 and M792 ambulance versions, the CUCV, and other light trucks. Primarily used by the United States Armed Forces, it is also used by numerous other countries and organizations and even in civilian adaptations. The Hummer series was also inspired by the HMMWVs.
The Humvee uses independent suspensions and portal geared hubs similar to portal axles to make for a full 16 inches of ground clearance. The vehicle also has disc brakes on all 4 wheels, and 4-wheel double-wishbone suspension.
The brake discs are not mounted at the wheels as on conventional automobiles, but are inboard, attached to the outside of each differential. The front and rear differentials are Torsen type, and the center differential is a regular, lockable type. There are at least 17 variants of the HMMWV in service with the United States Armed Forces. HMMWVs serve as cargo/troop carriers, automatic weapons platforms, ambulances (four litter patients or eight ambulatory patients), M220 TOW missile carriers, M119 howitzer prime movers, M1097 Avenger Pedestal Mounted Stinger platforms, MRQ-12 direct air support vehicles, S250 shelter carriers, and other roles. The HMMWV is capable of fording 2.5 ft (76 cm) normally, or 5 ft (1.5 m) with the deep-water fording kits installed.
Optional equipment includes a winch (maximum load capacity 6,000 lb (2,700 kg)) and supplemental armor. The M1025/M1026 and M1043/M1044 armament carriers provide mounting and firing capabilities for the M134 Minigun, the Mk 19 grenade launcher, the M2 heavy machine gun, the M240G/B machine gun and M249 LMG. The M1114 "up-armored" HMMWV, introduced in 2004, also features a similar weapons mount. In addition, some M1114 and M1116 up-armored and M1117 Armored Security Vehicle models feature a Common Remotely Operated Weapon Station (CROWS), which allows the gunner to operate from inside the vehicle, and/or the Boomerang anti-sniper detection system. Recent improvements have also led to the development of the M1151 model, which is quickly rendering the previous models obsolete. By replacing the M1114, M1116, and earlier armored HMMWV types with a single model, the U.S. Army hopes to lower maintenance costs.
The Humvee uses independent suspensions and portal geared hubs similar to portal axles to make for a full 16 inches of ground clearance. The vehicle also has disc brakes on all 4 wheels, and 4-wheel double-wishbone suspension.
| Humvee | |
|---|---|
| Type | Light Armored Car |
| Place of origin |  United States |
| Service history | |
| In service | 1984 – present |
| Production history | |
| Manufacturer | AM General |
| Unit cost | Unarmored: $65,000 Armored: $140,000 |
| Produced | 1984 – present |
| Specifications | |
| Weight | 5,200–5,900 lb (2,340–2,680 kg) curb weight |
| Length | 15 ft (4.6 m) |
| Width | 7.08 ft (2.1 m) |
| Height | 6 ft (1.8 m), reducible to 4.5 ft (1.4 m) |
| | |
| Main armament | M134 Minigun, the Mk 19 grenade launcher, the M2 heavy machine gun, the M240G/B machine gun and M249 LMG |
| Engine | 8 Cyl. Diesel 6.2 L (380 cu in) or 6.5 L (400 cu in) 6.5 L V8 turbo: 190 hp (142 kW) @ 3,400 rpm / 380 lbf·ft (515 N·m) @ 1,700 rpm |
| Transmission | 4-speed automatic |
| Suspension | Independent 4x4 |
| Fuel capacity | 25 U.S. gal (95 L) |
| Speed | 55 mph (89 km/h) at max gross weight Over 65 mph (105 km/h) top speed |
The brake discs are not mounted at the wheels as on conventional automobiles, but are inboard, attached to the outside of each differential. The front and rear differentials are Torsen type, and the center differential is a regular, lockable type. There are at least 17 variants of the HMMWV in service with the United States Armed Forces. HMMWVs serve as cargo/troop carriers, automatic weapons platforms, ambulances (four litter patients or eight ambulatory patients), M220 TOW missile carriers, M119 howitzer prime movers, M1097 Avenger Pedestal Mounted Stinger platforms, MRQ-12 direct air support vehicles, S250 shelter carriers, and other roles. The HMMWV is capable of fording 2.5 ft (76 cm) normally, or 5 ft (1.5 m) with the deep-water fording kits installed.
Optional equipment includes a winch (maximum load capacity 6,000 lb (2,700 kg)) and supplemental armor. The M1025/M1026 and M1043/M1044 armament carriers provide mounting and firing capabilities for the M134 Minigun, the Mk 19 grenade launcher, the M2 heavy machine gun, the M240G/B machine gun and M249 LMG. The M1114 "up-armored" HMMWV, introduced in 2004, also features a similar weapons mount. In addition, some M1114 and M1116 up-armored and M1117 Armored Security Vehicle models feature a Common Remotely Operated Weapon Station (CROWS), which allows the gunner to operate from inside the vehicle, and/or the Boomerang anti-sniper detection system. Recent improvements have also led to the development of the M1151 model, which is quickly rendering the previous models obsolete. By replacing the M1114, M1116, and earlier armored HMMWV types with a single model, the U.S. Army hopes to lower maintenance costs.
