The M114 155 mm howitzer is a towed howitzer developed and used by the United States Army.It was first produced in 1942 as a medium artillery piece under the designation of 155 mm Howitzer M1.It saw service with the US Army during World War II, the Korean War, and the Vietnam War, before being replaced by the M198 howitzer.. The gun was also used by the armed forces of many nations.Manufacturer: Rock Island Arsenal (US).
The reduction in length by 15 inches (38 centimetres) did not reduce performance; penetration was the same as the 3 inch gun. By August 17, the Ordnance Department had classified the test gun with the shorter barrel as the 76-mm M1 and set up the precedent for the designation of M4 tanks armed with the gun to include "(76M1)".Type: Tank gun.
Penetration resistance test is conducted on concrete structures using Windsor Probe test machine. In this test method, a steel probe is fired on the concrete surface by a sudden explosion. The penetration is inversely proportional to the strength of concrete. The result of the test is influenced by.
This penetration fractures the concrete obstacle from within, breaking it into smaller blocks, which can be cleared with an M9 Armored Combat Earthmover (ACE). A concrete block 6 feet in diameter and 6 feet long is broken up into rubble, which can be cleared by a tank equipped with a bulldozer blade.
The M1/M1A1/M1A2 76mm gun: Made by Oldsmobile, It was Not a Great Gun, but Did the Job. The M1 series of 76 mm guns went into production before the US Army had any idea of German heavy tanks, or the Panther. They were just looking ahead, to keep the Sherman as good a combat weapon as possible, and to stay ahead in the arms race.