| M2: General | |||
| Date of first acceptance | May 1981 | Total acceptances | 2300 M2 and M3 |
| Manufacturer | FMC Corp. | Crew |
|
| M2: Dimensions | |||
| Combat weight | 50,259lbs 22,797kg |
Height over commander's hatch | 117" 297cm |
| Length | 254" 645cm |
Gun overhang forward | 0" |
| Width | 126" 320cm |
Tread | 96" 240cm |
| Ground clearance | 18" 46cm |
Ground pressure, zero penetration | 7.8psi .55kg/cm² |
| M2: Armament | ||||||
| Type | Mount | Ammunition | Traverse | Max traverse rate | Elevation | Max elevation rate |
| 25mm Chain Gun M242 Bushmaster | Turret | 900 rounds (300 ready) |
360° (manual and electric) |
60°/sec | +59° to -9° (manual and electric) |
60°/sec |
| 7.62mm M240C MG | Coaxial to 25mm gun | 2200 rounds | 360° (manual and electric) |
60°/sec | +59° to -9° (manual and electric) |
60°/sec |
| Dual TOW missile launcher | Turret | 5 TOW missiles + 2 in launcher | 360° (manual and electric) |
60°/sec | +29° to -19° (electric) |
15°/sec |
| Stabilizer | ||||||
| Azimuth and elevation | ||||||
| Night vision | ||||||
| Thermal | ||||||
| M2: Armor | ||
| Assembly | ||
| Welding | ||
| Hull | ||
| Steel, 5083 aluminum, and 7039 aluminum armor | ||
| Turret | ||
| Steel, 5083 aluminum, and 7039 aluminum armor |
| M2: Automotive | |||||
| Engine | Cummins VTA-903T; 8 cylinder, 4 cycle, vee, turbosupercharged diesel | ||||
| Horsepower | Gross: 500@2600 rpm | Torque | Gross: 1025 ft-lb@2350rpm | Fuel capacity | 197gal 746L |
| Transmission | General Electric HMPT-500 hydromechanical, automatic range selection | ||||
| Steering | Hydrostatic, steering yoke | ||||
| Brakes | Multiple plate, oil cooled | ||||
| M2: Suspension | ||
| Type | Road wheels | Track return rollers |
| Torsion bar | 6 individually sprung dual/track | 1 dual/track, 2 single/track |
| Drive sprockets | Idlers | Shock absorbers | 11-tooth front drive | Dual adjustable at rear of track | On first 3 and last road wheels/track |
| M2: Track | |||||||
| Center guide, single pin, steel with detachable rubber pad | |||||||
| Width | 21" 53cm |
Pitch | 6" 15cm |
Shoes/track | Left side: 84 Right side: 82 |
Ground contact length | 154" 391cm |
| M2: Performance | |||
| Max level road speed | 41mph 66kph |
Max water speed | 4.5mph 7.2kph |
| Max trench | 100" 250cm |
Max grade | 60% |
| Max vertical obstacle | 36" 91cm |
Min turning diameter | Pivot |
| Max fording depth | Floats | Cruising range | ~300mi, roads ~480km, roads |
The M2 Bradley was the United States's infantry fighting vehicle. Its two-man turret was offset to the right to maximize the room in the passenger compartment, which held six dismounts. Two infantrymen sat to the left of the turret, one facing forward and the other to the rear. The infantry squad gained access to the vehicle through a large rear ramp which had an emergency door in the left side. Vision for the troops was through three periscopes placed between the rear ramp and the cargo hatch just behind the turret as well as two periscopes on each side of the hull above the side firing ports. The infantry were provided with firing ports through which they could fire the 5.56mm M231 fully-automatic firing port weapon. The five stowage racks for the TOW missile reloads could also hold Dragon anti-tank missiles. In order to float, it was necessary to erect the trim vane and a large water barrier around the vehicle. The hull vertical sides and rear armor consisted of two .25" (.64cm) steel plates one inch (2.5cm) apart and 3.5" (8.9cm) away from the aluminum armor. The hull top, bottom, and front consisted of 5083 aluminum armor, and .375" (.953cm) steel armor was added to the front third of the hull bottom to increase mine protection. Two four-tube smoke grenade launchers are mounted on either side of the turret front. The 25mm chain gun could fire single shots, or at rates of 100 or 200 rounds per minute, and it was equipped with a dual feed mechanism that allowed the gunner to switch between high-explosive and armor-piercing ammunition automatically.
| M2A1: General | |||
| Date of first acceptance | 1987 | Total acceptances | 1371 M2A1 and M3A1 |
| Manufacturer | FMC Corp. | Crew |
|
| M2A1: Dimensions | |||
| Combat weight | 50,261lbs 22,798kg |
Height over commander's hatch | 117" 297cm |
| Length | 254" 645cm |
Gun overhang forward | 0" |
| Width | 126" 320cm |
Tread | 96" 240cm |
| Ground clearance | 18" 46cm |
Ground pressure, zero penetration | 7.8psi .55kg/cm² |
| M2A1: Armament | ||||||
| Type | Mount | Ammunition | Traverse | Max traverse rate | Elevation | Max elevation rate |
| 25mm Chain Gun M242 Bushmaster | Turret | 900 rounds (300 ready) |
360° (manual and electric) |
60°/sec | +57° to -9° (manual and electric) |
60°/sec |
| 7.62mm M240C MG | Coaxial to 25mm gun | 2200 rounds | 360° (manual and electric) |
60°/sec | +57° to -9° (manual and electric) |
60°/sec |
| Dual TOW missile launcher | Turret | 5 TOW 2 missiles + 2 in turret | 360° (manual and electric) |
60°/sec | +29° to -19° (electric) |
15°/sec |
| Stabilizer | ||||||
| Azimuth and elevation | ||||||
| Night vision | ||||||
| Thermal | ||||||
| M2A1: Armor | ||
| Assembly | ||
| Welding | ||
| Hull | ||
| Steel, 5083 aluminum, and 7039 aluminum armor | ||
| Turret | ||
| Steel, 5083 aluminum, and 7039 aluminum armor |
| M2A1: Automotive | |||||
| Engine | Cummins VTA-903T; 8 cylinder, 4 cycle, vee, turbosupercharged diesel | ||||
| Horsepower | Gross: 500@2600 rpm | Torque | Gross: 1025 ft-lb@2350rpm | Fuel capacity | 197gal 746L |
| Transmission | General Electric HMPT-500 hydromechanical, automatic range selection | ||||
| Steering | Hydrostatic, steering yoke | ||||
| Brakes | Multiple plate, oil cooled | ||||
| M2A1: Suspension | ||
| Type | Road wheels | Track return rollers |
| Torsion bar | 6 individually sprung dual/track | 1 dual/track, 2 single/track |
| Drive sprockets | Idlers | Shock absorbers | 11-tooth front drive | Dual adjustable at rear of track | On first 3 and last road wheels/track |
| M2A1: Track | |||||||
| Center guide, single pin, steel with detachable rubber pad | |||||||
| Width | 21" 53cm |
Pitch | 6" 15cm |
Shoes/track | Left side: 84 Right side: 82 |
Ground contact length | 154" 391cm |
| M2A1: Performance | |||
| Max level road speed | 41mph 66kph |
Max water speed | 4.5mph 7.2kph |
| Max trench | 100" 250cm |
Max grade | 60% |
| Max vertical obstacle | 36" 91cm |
Min turning diameter | Pivot |
| Max fording depth | Floats | Cruising range | ~300mi, roads ~480km, roads |
In May 1986 a gas particulate NBC filtration system was introduced to the Bradley in which the commander, gunner, and driver wore masks connected to a central filter in the vehicle. The infantry squad made do with masks and filters built into their own MOPP suits. M2A1 also fired the new TOW 2 missiles, however the orignal TOW missiles could still be used with the M2A1's launchers. The seventh infantryman was added just behind the center of the turret. When the Bradley was upgraded with both the TOW 2 system and the gas particulate filtration system, it was known as M2A1. The M2A1 upgrades were retrofitted to many Bradleys produced previously.The various versions of the TOW missile are as follows: BGM-71A was the basic version with a 5" (13cm) diameter warhead. BGM-71C ITOW (Improved TOW) used an improved 5" (13cm) warhead and a standoff probe which allowed the shaped charge penetrator to assume a more efficient shape before it struck the target. ITOW also had an extended range of 3750m (2.33mi) compared to TOW's 3000m (1.86mi) range. BGM-71D TOW 2 has a 6" (15cm) diameter warhead, and retained a standoff probe. BGM-71E TOW 2A introduced a precursor charge in the standoff probe to defeat explosive reactive armor. BGM-71F TOW 2B is a top-attack weapon that defeats its targets with two explosively-formed projectiles that penetrate the roof of armored vehicles. TOW 2B lacks a standoff probe.
| M2A2: General | |||
| Total acceptances | 3053 M2A2 and M3A2 | ||
| Manufacturer | United Defense, L.P. | Crew |
|
| M2A2: Dimensions | |||
| Combat weight | ~60,000lbs 27,000kg |
Height over commander's hatch | 117" 297cm |
| Length | 258" 655cm |
Gun overhang forward | 0" |
| Width | 129" 328cm |
Tread | 96" 240cm |
| Ground clearance | 18" 46cm |
Ground pressure, zero penetration | 9.3psi .65kg/cm² |
| M2A2: Armament | ||||||
| Type | Mount | Ammunition | Traverse | Max traverse rate | Elevation | Max elevation rate |
| 25mm Chain Gun M242 Bushmaster | Turret | 900 rounds (300 ready) |
360° (manual and electric) |
60°/sec | +57° to -9° (manual and electric) |
60°/sec |
| 7.62mm M240C MG | Coaxial to 25mm gun | 2200 rounds | 360° (manual and electric) |
60°/sec | +57° to -9° (manual and electric) |
60°/sec |
| Dual TOW missile launcher | Turret | 5 TOW 2 missiles + 2 in launcher | 360° (manual and electric) |
60°/sec | +29° to -19° (electric) |
15°/sec |
| Stabilizer | ||||||
| Azimuth and elevation | ||||||
| Night vision | ||||||
| Thermal | ||||||
| M2A2: Armor | ||
| Assembly | ||
| Welding | ||
| Hull | ||
| Steel and 5083 aluminum armor | ||
| Turret | ||
| Steel, 5083 aluminum, and 7039 aluminum armor |
| M2A2: Automotive | |||||
| Engine | Cummins VTA-903T; 8 cylinder, 4 cycle, vee, turbosupercharged diesel | ||||
| Horsepower | Gross: 600@2600 rpm | Torque | Gross: 1225 ft-lb@2350rpm | Fuel capacity | 175gal 662L |
| Transmission | General Electric HMPT-500-3 or HMPT-500-3EC hydromechanical, automatic range selection | ||||
| Steering | Hydrostatic, steering yoke | ||||
| Brakes | Multiple plate, oil cooled | ||||
| M2A2: Suspension | ||
| Type | Road wheels | Track return rollers |
| Torsion bar | 6 individually sprung dual/track | 1 dual/track, 2 single/track |
| Drive sprockets | Idlers | Shock absorbers | 11-tooth front drive | Dual adjustable at rear of track | On first 3 and last road wheels/track |
| M2A2: Track | |||||||
| Center guide, single pin, steel with detachable rubber pad | |||||||
| Width | 21" 53cm |
Pitch | 6" 15cm |
Shoes/track | Left side: 84 Right side: 82 |
Ground contact length | 154" 391cm |
| M2A2: Performance | |||
| Max level road speed | 35mph 56kph |
Max water speed | 4.0mph 6.4kph |
| Max trench | 84" 210cm |
Max grade | 60% |
| Max vertical obstacle | 30" 76cm |
Min turning diameter | Pivot |
| Max fording depth | Floats | Cruising range | ~250mi, roads ~400km, roads |
M2A2 introduced heavier armor to the M2 line. The trim vane was deleted and replaced with steel applique armor. This armor was also added to the vertical hull sides and bottom, and fittings on this applique armor allowed for the attachment of passive or explosive reactive armor tiles. The armor tiles added ~6000lbs (2700kg) to the vehicle's weight, 13" (33cm) to its width, and another .9psi (.06kg/cm²) to its ground pressure. Spaced laminate armor was installed to the hull rear and spaced laminate track skirts protected the lower hull. The infantry firing ports in the hull sides were covered by the new applique armor, however the two in the rear ramp were retained. The protective cover was omitted from the M240C machine gun and a semicircular shield was attached to the turret rear to add more stowage space as well as act as spaced armor. Kevlar spall liners were added to critical areas. One of the infantrymen in the M2A2, the man seated directly behind the driver, was omitted. With the deletion of that man, the periscope at that position was removed as well. Wire cutters were added in front of the driver's position, and a cover was placed over the periscopes in his hatch. A maintenance stand was stowed on the hull left side. This was used when working on the engine since the M2A2 was built without a trim vane, which had previously provided a handy place to stand. The M2A2 also featured new headlight clusters. The US Army is converting M2s and M2A1s to M2A2 standard.After live firing testing, the seating and stowage arrengements of the Bradley were redrawn. The infantry squad was increased again to seven men, six of which sat facing each other on two 3-man benches in the passenger compartment. The seventh man sat just behind the driver like in the M2 or M2A1 seating arrangements. The Javelin anti-tank missile replaced the earlier Dragon in the M2A2 restow, and five TOWs or three TOWs and two Javelins could be carried.
After Operation Desert Storm, the M2A2 was upgraded again with the addition of an eye-safe carbon dioxide laser rangefinder, global positioning system and compass, combat identification system, and thermal viewer for the driver. The 1423 -A2 Bradleys brought up to this standard were referred to as -A2ODS.
| M2A3: General | |||
| Date of first acceptance | April 2000 | Total acceptances | 1602 M2A3 and M3A3 |
| Manufacturer | United Defense, L.P. | Crew |
|
| M2A3: Dimensions | |||
| Combat weight | ~61,000lbs ~28,000kg |
Height over commander's hatch | 117" 297cm |
| Length | 258" 328cm |
Gun overhang forward | 0" |
| Width | 129" cm |
Tread | 96" 240cm |
| Ground clearance | 18" 46cm |
Ground pressure, zero penetration | 9.4psi .66kg/cm² |
| M2A3: Armament | ||||||
| Type | Mount | Ammunition | Traverse | Max traverse rate | Elevation | Max elevation rate |
| 25mm Chain Gun M242 Bushmaster | Turret | 900 rounds (300 ready) |
360° (manual and electric) |
60°/sec | +57° to -9° (manual and electric) |
60°/sec |
| 7.62mm M240C MG | Coaxial to 25mm gun | 2200 rounds | 360° (manual and electric) |
60°/sec | +57° to -9° (manual and electric) |
60°/sec |
| Dual TOW missile launcher | Turret | 5 TOW 2 missiles + 2 in launcher | 360° (manual and electric) |
60°/sec | +29° to -19° (electric) |
15°/sec |
| Rangefinder | ||||||
| Laser | ||||||
| Stabilizer | ||||||
| Azimuth and elevation | ||||||
| Night vision | ||||||
| Thermal | ||||||
| M2A3: Armor | ||
| Assembly | ||
| Welding | ||
| Hull | ||
| Steel and 5083 aluminum armor | ||
| Turret | ||
| Steel, 5083 aluminum, and 7039 aluminum armor |
| M2A3: Automotive | |||||
| Engine | Cummins VTA-903T; 8 cylinder, 4 cycle, vee, turbosupercharged diesel | ||||
| Horsepower | Gross: 600@2600 rpm | Torque | Gross: 1225 ft-lb@2350rpm | Fuel capacity | 175gal 662L |
| Transmission | General Electric HMPT-500-3 or HMPT-500-3EC hydromechanical, automatic range selection | ||||
| Steering | Hydrostatic, steering yoke | ||||
| Brakes | Multiple plate, oil cooled | ||||
| M2A3: Suspension | ||
| Type | Road wheels | Track return rollers |
| Torsion bar | 6 individually sprung dual/track | 1 dual/track, 2 single/track |
| Drive sprockets | Idlers | Shock absorbers | 11-tooth front drive | Dual adjustable at rear of track | On first 3 and last road wheels/track |
| M2A3: Track | |||||||
| Center guide, single pin, steel with detachable rubber pad | |||||||
| Width | 21" 53cm |
Pitch | 6" 15cm |
Shoes/track | Left side: 84 Right side: 82 |
Ground contact length | 154" 391cm |
| M2A3: Performance | |||
| Max level road speed | 35mph 56kph |
Max water speed | 4.0mph 6.4kph |
| Max trench | 84" 210cm |
Max grade | 60% |
| Max vertical obstacle | 30" 76cm |
Min turning diameter | Pivot |
| Max fording depth | Floats | Cruising range | ~250mi, roads ~400km, roads |
The M2A3 moved into the digital age with a 1553 databus, central processing unit, and information displays for the vehicle commander and squad leader. The M2A3 became compatible with the intervehicular communication system of the M1A2 Abrams tank and AH-64D Apache Longbow helicopter. The commander was provided with an independent thermal viewer, and a new integrated sight unit called the Improved Bradley Acquisition System (IBAS) allowed automatic gun adjustments, automatic boresighting, and tracking of dual targets. The CITV and integrated sight are both second-generation FLIR systems. The roof was reinforced with titanium armor. M2A3s are being converted from M2A2s.
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© Copyright 2001-07 Chris Conners