Phalanx CIWS
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The Phalanx CIWS is an automated gun-based close-in weapon system to defend military watercraft automatically against incoming threats such as aircraft, missiles, and small boats. It was designed and manufactured by the General Dynamics... Wikipedia
Designed: 1969
Barrel length: 59.8 in (1,520 mm) L76 gun (Block 0 & 1)
Caliber: 20 mm (0.79 in)
Effective firing range: 1,625 yd (1,486 m) max. effective range
Elevation: Block 0: −10°/+80°; Block 1: −20°/+80°; Block 1B: −25°/+85°
Height: 15.5 ft (4.7 m)
Manufacturer: General Dynamics