Ha Ha. I wonder if the cops realize those old M113 personnel carriers have aluminum "armor"? Hmmm, I wonder, will a .308 Winchester round penetrate that aluminum?
Nope. The armor on the M113A3 remains unchanged from that of previous models, and is the same 5083 aluminum alloy. It is 44 mm thick over the frontal arc, 38 mm thick over the sides, rear, and roof, and 28 mm thick over the belly. 5083 aluminum has 25% more protection over the same area at twice the thickness as RHA steel, the making the M113's protection is thus roughly equal to 28 mm of steel in front, 20 mm underneath, and 22 mm on all other sides - it is thus proofed against 12.7-mm ball rounds, 12.7-mm AP in front, and all anti-personnel mines, small arms fire, shell splinters, and blast overpressure on all sides.
Armor characteristics aside, no - absolutely no - police department needs equipment like this. If they find the kind of situation that requires APCs, they need to call in the national guard.
4 comments:
Ha Ha. I wonder if the cops realize those old M113 personnel carriers have aluminum "armor"? Hmmm, I wonder, will a .308 Winchester round penetrate that aluminum?
Rusty
Nope. The armor on the M113A3 remains unchanged from that of previous models, and is the same 5083 aluminum alloy. It is 44 mm thick over the frontal arc, 38 mm thick over the sides, rear, and roof, and 28 mm thick over the belly. 5083 aluminum has 25% more protection over the same area at twice the thickness as RHA steel, the making the M113's protection is thus roughly equal to 28 mm of steel in front, 20 mm underneath, and 22 mm on all other sides - it is thus proofed against 12.7-mm ball rounds, 12.7-mm AP in front, and all anti-personnel mines, small arms fire, shell splinters, and blast overpressure on all sides.
Armor characteristics aside, no - absolutely no - police department needs equipment like this. If they find the kind of situation that requires APCs, they need to call in the national guard.
Have you seen what mercury does to aluminum?
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