graduate

British 3"/40 Dual-Purpose Gun


Photograph of 3"/40 gun

Naval History and Heritage Command #NH 42200


Specifications:


Bore
3"
76.2mm
Ammunition Type
Semi-armor piercing and high explosive semifixed shell.
Shrapnel and star shells were also available.

Weight of round

12.94 lbs
  5.87kg

Velocity

2235 feet per second
681 meters per second

Maximum elevation     

70 degrees

Range

11,750 yards
10,740 meters
Altitude 19,000 feet
5790 meters

Firing cycle

4 seconds

The 12-pdr was a very old design used on many lesser warships, including some submarines. It was always mounted in a hand-worked mount.


References

Campbell (1985)



Valid HTML 4.01 Transitional