TechnoFox
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They rolled in with M1A1's into Fallujah and had very little trouble. They learned they were decades ahead of anything the world could throw at them and so they introduced the M1A2 to widen that gap. Who else has depleted uranium mesh-reinforced composite armor on their tanks in the world today?
After the M1A2's lessons in Iraq came the TUSK package - Tank Urban Survival Kit.
It's counterintuitive, infantry in builtup cities armed with mine, IED, EFP, RPG or ATGMs are the bane of tanks everywhere, hence the need for infantry or air support to cover tank movements, but the TUSK package did offer the M1A2 more survivalbility when it didn't have the luxury of support while in cities.
The field-installed kit includes armor upgrades to the rear and bottom of the hull; an installation of slat armor to protect the engine compartment and use of appliqué reactive armor tiles to improve flank protection. A CROWS remote controlled weapon station (RWS) mounting a .50 caliber machine gun is replacing the commander's 0.5" cupola mounted heavy machine gun, enabling the commander to operate the weapon when "buttoned up" under closed hatches. RWS is provided only for M-1A2 TUSK sets. The M-1A1s will be fitted with a thermal sight coupled with remote- viewing and firing capability.
The TUSK kit includes a bolt on armored gun shield attached to the M240 (7.62mm) external machine gun, which will help to protect the loader when he is in the open-hatch firing position. When "buttoned up" the loader will be able to use the weapon from inside, aiming it via a thermal sight which projects the target image into a pair of goggles. A tank-infantry phone linked to the tank's intercom will also be added to improve connectivity with supporting forces.
Lessons learned with TUSK have been incorporated into SEP:
The baseline M1A2 tank uses advanced armor, reinforced with depleted uranium layers. The M1A2 SEP has a further upgraded depleted uranium armor components with graphite coating. Protection of this MBT is considered as one of the best in the world. The M1A2 SEP has significant level of protection against all known anti-tank weapons. It can also employ counter-IED equipment. Protection can be further increased with add-on explosive reactive armor.
The tank is armed with the same 120-mm M256 smoothbore gun as its predecessor. Range of effective fire is in excess of 4 km. It can fire the M829A3 APFSDS rounds with depleted uranium penetrator and M1028 canister rounds that discharges massive blast of tungsten fragments at muzzle exit. This round has devastating lethality against assaulting infantry between a range of 200-500 meters. Ammunition for the main gun is stored in the turret bustle, fitted with blow-out panels.
The SEPv2 (version 2) added CROWS or CROWS 2 remotely operated weapon station, armed with a 12.7-mm machine gun. This weapon can be fired from inside of the tank without exposing the crew to enemy fire. Also there are two 7.62-mm machine guns. One of them is mounted coaxially with the main gun. The other is mounted on top of the roof and is operated by the gunner.
The M1A2 SEP has a more advanced fire control system with upgraded ballistic computer. Both the gunner's sight and commander's independent thermal viewer use new 2nd generation FLIR technology and have improved thermal imaging and night vision capabilities. Commander and gunner can designate and track multiple targets simultaneously. This gives the tank a hunter-killer engagement capability.
M1A2 SEP V2:
And M1A2 SEP V2 TUSK:
*This one lacks CROWS
that lessons adopted??
The implementation of the TUSK, SEP and SEP V2 TUSK were all a result of M1A2 operations and lessons in urban Iraqi cities.
Each upgrade is designed to counter both open and urban battlefield situations including mines, AGTMs, RPGs, tanks and IFVs and IEDs.
The next iteration of the M1 series may have the Advanced Tank Cannon system:
*Note this is only a prototype M1A3. The program is in its initial stages.
This 140mm cannon was first shown on the CATTB prototype M1:
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