The M1 Abrams tank has a reputation for being very hard to kill.
According to Tom Clancy's book "Armored Cav," in one instance an Abrams got stuck in the mud during Operation Desert Storm and was attacked by three T-72s tanks.
The Iraqi rounds bounced off – including one fired from less than 500 yards away. After the crew evacuated, a platoon of Abrams tanks then fired a bunch of rounds with one detonating the on-board ammo.
The blow-out panels worked and it turned out that the only damage was that the gun's sights were just out of alignment. The tank was back in service with a new turret very quickly. The old turret went back to be studied.
Abrams tanks on the move. (US Army photo)
An Abrams tank doesn't get much tougher to kill than that, right? You'd be wrong, especially when the Army equips it with an active defense system. According to a report by DefenseTech.org, three systems are in contention, with the Trophy Active Protection System by Rafael being the front-runner.
Army Maj. Gen. David Bassett, who is in charge of the Army's programs in the area of ground combat systems, said that he was hoping to make a quick decision on an active protection syste, for the Abrams.
Israel's Merkava MK-IV (Mark 4) | Israel Defense Forces photo
"I'm not interested in developing, I'm interested in delivering," he said, noting that the Army is looking to upgrade the bulks of its inventory of armored vehicles. Only the M113 armored personnel carriers are being replaced by the BAE Armored Multi-Purpose Vehicle.
The Trophy system works by using four radar antennas and fire-control radars to track incoming rockets, missiles, and rounds. When a threat is detected, one of two launchers on the sides of the Abrams would then fire a shotgun-type blast to kill the threat. Similar systems are on the Israeli Merkava 4 main battle tank and Russia's T-14 Armata main battle tank.
T-14 Armata (Photo from Wikimedia Commons)
Some reports claim that Russia has developed a weapon capable of beating an active-defense system like Trophy. The RPG-30 reportedly used a smaller rocket in front of its main rocket to try to trigger the system.
But still, the Trophy can attack rockets and grenades at a distance, before the warhead even reaches the Abrams' skin.