CHARACTERISTICS
Length: 28.3 feet
Width: 6.8 feet
Height: 8.1 feet
Weight: 5.1 tons
Crew: 7

ARMAMENT
Type: 57-mm. antiaircraft gun
Rate of fire: 70 rounds per minute (practical)
120 rounds per minute (cyclic)
Range: 4,000 meters with on-carriage fire control
6,000 meters with off-carriage fire control