Sailors are using captured Italian helmets. Note the sailor with the projectile and gas mask at right.
A widely used weapon employed in both the anti-torpedo boat and anti-aircraft roles in easily removable mounts. Some of these guns were mounted on top of main gun turrets where they could be coupled with the 30.5 cm guns for gunnery practice. The K16 - also known as BAG (Ballon-Abwehr Geschütz - Anti-Airship Gun) - was slightly different to suit an anti-aircraft mounting but had the same ballistic characteristics as the K10.
Seven of these guns were allocated for coastal defense and eight more were given to the Army.
Actual bore diameter was 6.6 cm (2.6").
| Designation | 7 cm (2.75")/50 K10 and K16 Skoda |
|---|---|
| Ship Class Used On | Battleships: Viribus Unitis class
Cruisers: Admiral Spaun and Helgoland classes Destroyers: Tatra, Triglav II classes Monitors: Enns class |
| Date Of Design | 1910 / 1916 |
| Date In Service | 1911 / 1917 |
| Gun Weight | 1,146 lbs. (520 kg) without breech |
| Gun Length oa | about 138 in (3.500 m) |
| Bore Length | N/A |
| Rifling Length | N/A |
| Grooves | (20) 0.030 in D x 0.244 W (0.75 mm D x 6.2 mm W) |
| Lands | N/A |
| Twist | RH 1 in 30 |
| Chamber Volume | N/A |
| Rate Of Fire | 15 to 20 rounds per minute |
| Type | Fixed |
|---|---|
| Projectile Types and Weights | HE: 9.9 lbs. (4.5 kg) |
| Bursting Charge | 3.5 lbs. (1.6 kg) |
| Projectile Length | HE: 4 calibers |
| Propellant Charge | 3.5 lbs. (1.6 kg) |
| Muzzle Velocity | 2,887 fps (880 mps) |
| Working Pressure | 18.4 tons/in2 (2,900 kg/cm2) |
| Approximate Barrel Life | N/A |
| Ammunition stowage per gun | 400 rounds |
| Elevation | Distance |
|---|---|
| 20 degrees | 8,750 yards (8,000 m) |
| AA Ceiling | 16,400 feet (5,000 m) |
| Designation | Single Mounts 1 As Commissioned Viribus Unitis (12 ATB and 4 AA) Tatra (6 ATB) and Triglav II (6 ATB) Enns (2 AA) 2 Late War
|
|---|---|
| Weight | N/A |
| Elevation | Anti-torpedo boat: -10 / +20 degrees
Anti-airship: -5 / +90 degrees |
| Elevation Rate | N/A |
| Train | 360 |
| Train Rate | N/A |
| Gun recoil | N/A |
| Loading Angle | N/A |
- ^The quantities in this section are primarily based upon the findings of Mihály Krámli and may disagree with the quantities found in other sources. The number of available weapons and the quantities used on each ship fluctuated during the war as guns became available either by new production or by reusing guns from older ships being decommissioned.
- ^The mountings on the Enns class monitors had a flap on the top of the gunhouse that could be opened to allow high gun elevations.
"Naval Weapons of World War One" by Norman Friedman
"Austro-Hungarian Battleships 1914-18" by Ryan Noppen
"A Fleet in Being: Austro-Hungarian Warships of WWI" y Russell Phillips
"The Viribus Unitis Class" article in "Warship Volume II" by Friedrich Prasky
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Original research by Mihály Krámli, author of "Sinking of the Austro-Hungarian Monitor SMS Inn, 22 September 1917,"
"A Használhatatlan Lövegtornony Mítosza: Legenda Vagy Valóság?"
[The Myth of the Useless Turret: Legend or Reality?] and
"Az Osztrák-Magyar Monarchia Csatahajói: 1904-1914" [Austro-Hungarian Battleships and Battleship Designs: 1904-1914]
{Link - Hungarian to complete book in pdf form and
Link - English}.
Paperback copies printed on A4 paper and shipped from Hungary are available. Contact NavWeaps by clicking on the Contact link above or below.
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Tony DiGiulian's personal data files
01 August 2006 - Benchmark
12 October 2013 - Added additional information and picture of AA gunners
15 June 2023 - Converted to HTML 5 format
01 July 2024 - Added use on cruisers, destroyers and monitors, added photograph of SMS Inn