These were Hotchkiss pattern 3-pdr. guns where those suffix with "H" were imported while those suffix with "S" were license built guns by Škoda. This was the standard Austro-Hungarian fast-firing gun until the end of the war. Actual bore length was 43.57 calibers.
A later 4.7 cm gun introduced in 1914, the 4.7 cm S.F.K. L/44 Škoda, fired the same projectiles but used a heavier charge giving it a muzzle velocity of 2,790 fps (850 mps).
| Designation | 4.7 cm S.F.K. L/44 Hotchkiss
4.7 cm S.F.K. L/44 Škoda |
|---|---|
| Ship Class Used On | Most ships |
| Date Of Design | Hotchkiss: about 1890
Škoda: 1897 |
| Date In Service | 1897 |
| Gun Weight | 529 lbs. (240 kg) w/o breech |
| Gun Length oa | 80.6 in (2.048 m) |
| Bore Length | N/A |
| Rifling Length | 58.4 in (1.484 m) |
| Grooves | (20) 0.015d x 0.021 in (0.4 x 5.38 mm) |
| Lands | 0.079 in (2 mm) |
| Twist | Uniform RH 1 in 25 |
| Chamber Volume | N/A |
| Rate Of Fire | 25 rounds per minute |
| Type | Fixed |
|---|---|
| Projectile Types and Weights | Common: 3.37 lbs. (1.53 kg)
HE: 3.37 lbs. (1.53 kg) Complete Round: 5.06 lbs. (2.75 kg) |
| Bursting Charge | Common: 0.4 lbs. (0.075 kg)
HE: N/A |
| Projectile Length | Common: about (16.5 cm)
HE: about (18.8 cm) |
| Cartridge Case Type, Size and Empty Weight | Brass, N/A |
| Propellant Charge | N/A |
| Muzzle Velocity | 2,330 fps (710 mps) |
| Working Pressure | N/A |
| Approximate Barrel Life | N/A |
| Ammunition stowage per gun | Typical was 100 common and 100 HE rounds per gun |
| Elevation | Distance |
|---|---|
| 45 degrees | 4,375 yards (4,000 m)1 |
- ^Range from "Naval Weapons of World War One." "Monitor-Projekte" says that the maximum range was 3,280 yards (3,000 m). This source also says that the Common shell could penetrate 0.030 inches (7 mm) of steel at 1,090 yards (1,000 m).
| Designation | Single Mounting |
|---|---|
| Weight | 1,742 lbs. (790 kg) including pivot |
| Elevation | Monitors: -23 / +23 degrees
Others: -10 / +20 degrees |
| Elevation Rate | Manually operated, only |
| Train | about +150 / -150 degrees |
| Train Rate | Manually operated, only |
| Gun recoil | N/A |
"The Austro-Hungarian Danube Flotilla in World War One" by Zvonimir Freivogel
"Naval Weapons of World War One" by Norman Friedman
"Monitor-Projekte für die österreichisch-ungarische k. u. k. Marine aus den Jahren 1915" [Monitor projects for the Austro-Hungarian
k.u.k. Navy from the year 1915] by Karl Schrott as published in "Schiff und Zeit/Panorama maritim", No. 41, 1995
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Special help from László Kiss and Mihály Krámli
29 May 2025 - New datapage