M1A2 Abrams SEP American Main Battle Tank (MBT)
M1A2 SEP
Main Battle Tank (MBT)
Other
Basic Information
Name
M1A2 Abrams SEP American Main Battle Tank (MBT)
Designation
M1A2 SEP
Alternate Designation
M1A2 SEP
Equipment Type
Main Battle Tank (MBT)
Manufacturer
—
Date of Introduction
1999
Description
Approved for implementation in 1995, the M1A2 SEP (System Enhancement Package) is a technology upgrade and standardization program, whereby the Army's fleet of M1s and M1A2s will all be brought to a common standard. Most notable among the modifications will be the introduction of a standard under armor auxiliary power unit and the addition a crew compartment air conditioning and cooling unit. Other modifications within the vehicle will include upgrades to the IVIS system (color display, full size keyboard, digital mapping and graphics generation capability, and voice recognition capabilities), upgrades to the Gunner's Primary Sight assembly, and improvement in the tank's intercom and radio communications systems. Production of the M1A2 was halted after the initial run of 627 vehicles. As part of the fleet upgrade program, 547 of the Army's current inventory of M1s are being upgraded to M1A2 SEP standards, which will require the complete remanufacturing of the turret, while the current fleet of M1A2s will undergo a retrofit to bring them up to SEP standards. Further improvements on the M1A2 have occurred with the production of the M1A2 SEP . The package includes: *enhanced Army Force XXI digital command and control capabilities; *a second-generation, forward-looking IR (FLIR) system for the gunner and commander; *user-friendly soldier/machine interface (SMI); *under-armor auxiliary power unit (UAAPU); *a new computerized mass-memory unit; *color maps and displays.
Ground Specifications
Crew
4
Mobility Type
Tracked
Engine
Multi-Fuel (1500 hp)
Active Protection
In addition to the armor, some USMC Abrams tanks are equipped with a Softkill Active protection system, the AN/VLQ-6 Missile Countermeasure Device (MCD) that can impede the function of guidance systems of some semi-active control line-of-sight (SACLOS) wire- and radio guided anti-tank missiles (such as the Russian 9K114 Shturm) and infrared homing missiles.
Max Speed
66.0 km/h
Range
426.0 km
Variants
Variants
Multiple Variants and Upgrades
System
Alternative Designation
M1A2 SEP
Type
Main Battle Tank
Crew
4 (commander, driver, gunner, loader)
SEP Upgrades
a new computerized mass-memory unit; color maps and displays; enhanced Army Force XXI digital command and control capabilities;
a second-generation, forward-looking IR (FLIR) system for the gunner and commander;user-friendly soldier/machine interface (SMI);
under-armor auxiliary power unit (UAAPU);
Dimensions
Length, Hull
7.92 m
Width, with Skirts
3.65 m
Width, without Skirts
3.48 m
Track Length on Ground
4.65 m
Track Width
0.64 m
Ground Clearance, Center of Hull
0.48 m
Ground Clearance, Sides
0.43 m
Height
2.89 m
Gun Length
9.83 m
Height to Turret Roof
2.44 m
Weight, Combat
63,086 kg
Ground Pressure
1.08 kg/sq cm
Automotive
Engine Name
Textron-Lycoming AGT-1500 2-spool free-shaft, multi-fuel turbine with Allied-Bendix digital electronic fuel control
Engine Type
Multi-Fuel
Engine Power
1,500 hp at 3,000 rpm
Power-to-Weight Ratio
23.77 hp/metric ton
Fuel Capacity
504 gal (1,908 liters)
Transmission
Allison X-1100-3B Automatic hydro-kinetic, hydrostatic steering, 4 forward and 2 reverse gears
Suspension
advanced torsion bar, 7 road wheels with 15-in (381-mm)travel, rear drive, front idler, 3 internal rotary shock absorbers,2 return rollers
Braking
hydro-mechanical
Road Speed
66 km/h
Speed, 10 Deg Upslope
27 km/h
Speed, 60 Deg Upslope
7 km/h
Acceleration
32 km/h
Range
426 km
Auxiliary Power Unit
Under-armor auxiliary power unit (UAAPU)
Communications
Radio
Single-channel ground and airborne radio system (SINCGARS)
Main Gun
System
Name
M256 smoothbore
Type
120-mm/46-cal M256 smoothbore with fume extractor and thermal sleeve
Caliber
120mm
Length
5.6 m
Barrel Length
5.3 m
Width
728 mm
Bore
120-mm/44-caliber, smoothbore fitted with fume extractor and thermal sleeve
Gun Weight
1,905 kg
Barrel Weight
1,175 kg
Recoil, Maximum
370 mm
Recoil, Normal
340 mm
Recoil System
2 hydraulic buffers and 1 hydropneumatic recuperator
Breech Type
semi-automatic vertical sliding wedge
Muzzle Velocity
1373+ m/sec
Maximum Range
4,000 m
Turret Type
electro-hydraulic, manual backup
Feed System
Manual
Elevation
-10/+20 deg
Traverse
360 deg
Ammunition (Option 1)
Name
M829A2
Type
APFSDS-T
Caliber
120 mm
Basic Load
40 rounds
Ammunition (Option 2)
Name
M829A3
Type
APFSDS-T
Caliber
120 mm
Basic Load
40 Rounds
Coaxial Weapon System
System
Name
1 x 7.26-mm M240 machine gun
Type
General-Purpose Machine Gun
Caliber
7.72mm
Length
1,260 mm
Barrel Length
630 mm
Width
120 mm
Height
(260 mm
Weight
12.5 kg
Action
Gas-operated long-stroke piston, open bolt
Rate of Fire
M240, M240E1, M240C, M240D and M240G:
Gas Setting 1: 650–750 RPM
Gas Setting 2: 750–850 RPM
Gas Setting 3: 850–950 RPM
M240B, M240L and M240H: 550–650 RPM
Barrett 240LW and 240 LWS: 550–650 RPM
Muzzle Velocity
853 m/s
Maximum Firing Range
3,725 m
Effective Firing Range
800 m (875 yd) (bipod)
1,100 m (1,203 yd) (tripod)
Feed System
Belt-fed using M13 disintegrating links
Sights
Iron sights: front blade and folding rear leaf with aperture and notch
Ammunition
Type
Rifle
Caliber
7.62 mm
Cartridge
7.62×51mm NATO
Basic Load
6,000 Rounds
Auxiliary Weapon System
Weapon
1 x 7.62-mm M240 machine gun on Skate Mount
Basic Load
6,000 Rounds
Commander's Weapon System
System
Name
1 x .50-caliber M2 machine gun
Type
Heavy Machine Gun
Caliber
12.7mm
Length
1,654 mm
Barrel Length
1,143 mm
Weight
38 kg (83.78 lb)
58 kg (127.87 lb) with tripod and T&E (Traverse and Elevation Mechanism)
Action
Short recoil-operated
Rate of Fire
450–600 rounds/min (M2HB)
750–850 rounds/min (AN/M2)
1,200–1,300 rounds/min (AN/M3)
Muzzle Velocity
890 m/s
Maximum Firing Range
7,400 m
Effective Firing Range
1,800 m
Feed System
Belt-fed (M2 or M9 links)
Sights
INA
Ammunition
Type
Rifle
Caliber
12.7 mm
Cartridge
.50 BMG (12.7×99mm NATO)
Basic Load
1,000
Fire Control
Name
INA
Computerized FCS
Yes
Ballistic Computer
Hughes 12 kilobyte digital computer
Main Gun Stabilization
Yes
Day Optics
Hughes primary stabilized sight with 3- and 10-power day optics
Night Optics
Hughes night-vision/sight with thermal
imaging
Rangefinder
GEC Avionics/Kollsman eye-safe CO2 rangefinder replaces the Nd-YAG laser rangefinder
Effective Fire Range
200 to 7,990 m
Accuracy
10 m or less
Commander's Thermal Viewer
a Texas Instruments commander's independent thermal viewer (CITV), which permits the commander to search and independently select new targets
Driver's Thermal Viewer
Hughes driver's thermal viewer (DTV) with integrated display, a fire-control electronics unit (FCEU) that coordinates CIT stabilization, primary sight and gun-turret drive
M1A2 SEP Upgrade
improved commander's weapon station (ICWS)
Information System
intervehicular information system (IVIS)
Navigation System
Smith Industries position navigation (POS/NAV) system
Command and Control Upgrade
enhanced Army Force XXI digital command and control capabilities;
FLIR
a second-generation, forward-looking IR (FLIR) system for the gunner and commander
Protection
Hull Armor
upgraded third-generation depleted uranium armor components with graphite coating
Turret Armor
INA
Applique Armor
Available
Explosive Reactive Armor
INA
Active Protection System
In addition to the armor, some USMC Abrams tanks are equipped with a Softkill Active protection system, the AN/VLQ-6 Missile Countermeasure Device (MCD) that can impede the function of guidance systems of some semi-active control line-of-sight (SACLOS) wire- and radio guided anti-tank missiles (such as the Russian 9K114 Shturm) and infrared homing missiles.
Mine Clearing
INA
Self-Entrenching Blade
INA
NBC Protection
200 SCFM-Clean Cooled Air (collective overpressure); AN/VDR-1 radiological warning device
Smoke Equipment
M250 (British L8A1) 2 x 6-barrel smoke discharger (24 rounds), engine exhaust generation
Fire Suppression
automatic detection and suppression
Fuel Cover
Allied Bendix digital electronic fuel control
Note
Enhanced survivability including better armor on gunner's primary sight (GPS) cover;
Details
Country of Origin
United States
Category
Tanks
Land > Tanks
Filter Label
M
Classification
Domain
Ground
Equipment Status
Active
Dimensions
Length
7.92 m
Width
3.65 m
Height
2.89 m
Weight
63086 kg
Operators (9)
United States
Australia
Egypt
Iraq
Kuwait
Morocco
Saudi Arabia
Taiwan
CFE Treaty
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