90 mm M1
A 90 mm M1 at CFB Borden
Type * Anti-aircraft gun, anti-tank gun (M1, M2)
- Tank gun (M3)
Place of origin United States
Service history
In service 1938–1960[1]
Used by * United States - Canada
- France[2]
Wars * World War II - Korean War
Production history
Produced 1940 -
No. built 133,833 (M1,M2) (1940–1945)
6,648 (M1A1)
Variants * T2 - M1
- M1A1
- M2
- T7
- M3
- M3A1
- T8
- T15 later redesignated T54
- T18–T21
Specifications
Mass * M1A1: 19,000 lb (8,600 kg) - M2: 32,300 lb (14,700 kg)
- M3: 2,260 lb (1,030 kg) (gun only)
Length M1A1: 29.6 ft (9.0 m)
Barrel length * M1: 200 in (5,100 mm) L/55 (55 caliber) - M3: 186 in (4,700 mm) L/53 (53 caliber)
Width M1A1: 13.6 ft (4.1 m)
Height M1A1: 10.1 ft (3.1 m)
Crew * M1: 8 (1× gunner 7× loader) - M2: 8 (1× gunner 7× loader)
Shell 90 x 600-615mmR
- M3 HE: 3.5 in × 37.44 in (90 mm × 950 mm) (M71 complete round)
- M3 APC: 3.5 in × 38.24 in (90 mm × 970 mm) (M82 complete round)
- M3 AP: 3.5 in × 32.75 in (90 mm × 830 mm) (M77 complete round)
Shell weight * M71 HE: 23.29 lb (10.56 kg) projectile, 41.93 lb (19.02 kg) complete - M82 APC: 24.11 lb (10.94 kg) projectile, 42.75 lb (19.39 kg) complete
- M77 AP: 23.40 lb (10.61 kg) projectile, 42.04 lb (19.07 kg) complete
Caliber 90 mm (3.5 in)
Elevation * M1: -10° to +90° - M2: -10° to +90°
- M3: -10° to +23°
Traverse 360°
Rate of fire * 6 rpm in the anti-tank variant - 10 rpm in the anti-aircraft variant
Muzzle velocity * M3 HE and AP: 2,700 ft/s (820 m/s) - M3 APC: 2,670 ft/s (810 m/s)
Maximum firing range * Maximum horizontal: - M1A1: 62,474 ft (19,042 m)
- Maximum ceiling:
- M1A1: 43,500 ft (13,300 m)
