"Pom-pom" gun that was originally made by Maxim and later taken over by Vickers. This was basically a scaled-up version of the Maxim 0.303" (7.7 mm) Machine Gun. Like the MG, the 1-pdr was belt-fed and recoil operated.
Extensively used as an AA weapon during World War I.
| Designation | VSM 1-pdr (0.45 kg) [1.46" (37 mm)] Mark I |
|---|---|
| Ship Class Used On | Many |
| Date Of Design | about 1890 |
| Date In Service | about 1895 |
| Gun Weight | N/A |
| Gun Length oa | N/A |
| Bore Length | N/A |
| Rifling Length | N/A |
| Grooves | N/A |
| Twist | N/A |
| Length Of Rifling | N/A |
| Chamber Volume | N/A |
| Rate Of Fire | Cyclic: About 100 rounds per minute |
| Type | Fixed |
|---|---|
| Weight of Complete Round | N/A |
| Projectile Types and Weights | HE: 1.39 lbs. (0.56 kg) |
| Bursting Charge | HE: N/A |
| Projectile Length | HE: N/A |
| Cartridge Case Type, Size and Empty Weight | Brass, 37 x 94R mm, N/A |
| Propellant Charge | N/A |
| Muzzle Velocity | 1,204 fps (367 mps) |
| Working Pressure | N/A |
| Approximate Barrel Life | N/A |
| Ammunition stowage per gun | N/A |
| Designation | N/A |
|---|---|
| Weight | N/A |
| Elevation | N/A |
| Elevation Rate | Manually operated, only |
| Train | 360 degrees |
| Train Rate | Manually operated, only |
| Gun recoil | N/A |
Identity Plate of the weapon in the previous image:
| Engraving | Explanation |
|---|---|
| Q.F.I.P Mark II | Quick Fire 1-Pounder Mark II |
| VSM | Vickers & Sons, Maxim |
Photograph copyrighted by Shane Rogers.
."Naval Weapons of World War Two" by John Campbell
"US Naval Weapons" by Norman Friedman
"Rapid Fire" by Anthony G. Williams
20 February 2008 - Benchmark
24 September 2025 - Converted to HTML 5 format