QF 12.7 cm/38 calibre Mk XXIII gun
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Note by Tsumiki: Any information here is subject to change. This article is a work in progress. |
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| QF 12.7 cm/38 calibre Mk XXIII gun QF 12.7 cm/38 calibre Mk XXIV gun 12,7 cm SfK C/42 12,7 cm SfK C/56 | |
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 Two twin Mk 44 mounts previously installed on HIvMS Hecate (FBB-59). These were removed and replaced with the more advanced Mk 46 mounts. | |
| Type | Naval gun |
| Place of origin | Illusia and Neverendia |
| Service history | |
| In service | 2047–present |
| Used by | Illusia and Neverendia |
| Wars | Memesterian Civil War |
| Production history | |
| Designed | 2042 |
| Produced | 2045–present |
| Specifications (Mk XXIII gun) | |
| Weight | Gun assembly: 1,810 kg (3,990 lb) Mounts varied from 13,300 kg (29,300 lb) to 77,350 kg (170,530 lb) |
| Barrel length | 4.826 m (15 ft 10.0 in) (38 calibres) |
| Crew | Varies per mount type |
| Shell | 127×680mmR 24 to 25 kg (53 to 55 lb) |
| Calibre | 127 mm (5.0 in) |
| Recoil | 38 cm (15 in) Mk XXIV: 30 cm (12 in) |
| Elevation | −15° to +85° |
| Traverse | 328.5 degrees |
| Rate of fire | Design: 18 rpm Actual: 15 rpm |
| Sights | Digital fire control system Optical telescope (backup) |
The QF 12.7 cm/38 calibre Mk XXIII gun (Illusian designation 12,7 cm SfK C/42[Note 1]) is an Illuverendian naval gun that is extensively deployed on a large majority of Royal Illuverendian Navy surface vessels. For the unrelated lightweight gun yet also employed by the Royal Illuverendian Navy, see 127 mm/62 calibre Mk LXVI naval gun.
This variant of a 127 mm artillery was conceived by the ailing Stratocracy, with the Royal Illuverendian Navy getting hold of later use after Alyssa took power. Due to the limitations employed by the modern lightweight 127 mm gun, the Navy's research and development teams went back with the "traditional" way of making a short-barreled, quick-firing gun that would also project the same effectiveness on the modern lightweight guns. Paired with a widespread apathetic opinion on the slow-firing antiquated 15 cm SK C/29 guns, the Mk 23 gun had no opposition in being quickly implemented, starting with the S-51 project, those being the Albemarle class of battleships, the Revenge class of cruisers, and eventually the New Generation Fast Battleships.
A newer version optimised with technologies learned from the lightweight gun, the QF 12.7 cm/38 calibre Mk XXIV, was introduced in 2056.
Notes
- ↑ SfK – Schnellfeuer Kanone (quick-firing cannon); C – Construktionsjahr (year of design)