The 37 mm Automatic Gun, M4, known as the T9 during development, was a 37 mm (1.46 in) recoil-operated autocannon designed by Browning Arms Company and entered service in 1942. [1] The M4 and its variants would primarily be manufactured by Colt's Manufacturing Company and Oldsmobile (under-contract by Colt) and is therefore sometimes referred ...

The 37 mm (1.46 in) M4 Automatic Cannon was a compact, low velocity and rate-of-fire auto-cannon developed by Browning in 1921. Browning and the Colt Firearms Co reworked it into the T9/M4. It was designed primarily as an anti-aircraft weapon and used in the Bell P-39 Airacobra and P-63 Kingcobra fighters, as well as experimentally on other ...

37 mm on bow of PT-631. Distinctive "arched" magazine was designed to fit into the nose of P-39 aircraft. US Navy Photograph taken in early 1945.

The 37 mm Automatic Gun, M4, known as the T9 during development, was a 37 mm (1.46 in) auto cannon designed by John Browning and used in the Bell P-39 Airacobra and P-63 Kingcobra fighters, as well as experimentally on other designs. It provided interceptors with a weapon that could shoot down any bomber with as little as one hit.

The 37 mm Automatic Gun, M4 (known as the T9 during development) was a 37mm recoil-operated autocannon designed by the Browning Arms Company and manufactured by Colt. It entered military service in 1942, used in the Bell P-39 Airacobra and P-63 Kingcobra aircraft.

The 37×145mmR was a series of rimmed-case, fixed-ammunition cannon shells for use in the 37mm Browning M4 autocannon. The rapid strides in aircraft protection made it necessary to develop an aircraft weapon that would fire projectiles with greater explosive and armor-piercing qualities than smaller caliber weapons.

37 mm gun or 3.7 cm gun can refer to several weapons or weapons systems. The "37 mm" refers to the inside diameter of the barrel of the gun, and therefore the diameter of the projectile it fires. However, the overall size and power of the gun itself can vary greatly between different weapons, in spite of them all being called "37 mm" guns.

The 37 mm Automatic Gun, M4, known as the T9 during development, was a 37 mm (1.46 in) autocannon designed by John Browning and used in the Bell P-39 Airacobra and P-63 Kingcobra fighters, as well as experimentally on other designs. It provided interceptors with a weapon that could shoot down any bomber with as little as one hit.

37-mm Gun With Non-Armored Vehicles, Aircraft, and Vessels in World War II covers the M3 and M1A2 Automatic Anti-aircraft Gun mounted in/on the M4 Towed Mount and: PT Boats. Ammunition receives the same attention, even reviewing spigot grenade designs.

The 37 mm Automatic Gun, M4, known as the T9 during development, was a 37 mm (1.46 in) recoil-operated autocannon designed by Browning Arms Company and entered service in 1942. The M4 and its variants would primarily be manufactured by Colt's Manufacturing Company and Oldsmobile and is therefore sometimes referred to as the "Colt M4" or ...