BL 40.6 cm/52 calibre Mk I gun: Difference between revisions

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{{Infobox weapon
{{Infobox weapon
| name              = BL 40.6 cm/52 calibre Mk I gun
| name              = BL 40.6 cm/52 calibre Mk I gun<br>''40,6 cm K/52 SK C/47''
| image              = Hecate_main_battery.png
| image              = Hecate_main_battery.png
| image_size        = 300
| image_size        = 300
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<!-- Production history -->
<!-- Production history -->
| designer          =  
| designer          =  
| design_date        = 2048
| design_date        = 2047
| manufacturer      =  
| manufacturer      =  
| unit_cost          =  
| unit_cost          =  
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<!-- Ranged weapon specifications -->  
<!-- Ranged weapon specifications -->  
| cartridge          = {{wpl|APCBC}}, HE
| cartridge          = {{wpl|APCBC}}, HE
| cartridge_weight  =  
| cartridge_weight  = APCBC: {{cvt|1875|kg|lb}}<br>HE: {{cvt|975|kg|lb}}
| caliber            = {{cvt|406|mm|in}}
| caliber            = {{cvt|406|mm|in}}
| barrels            =  
| barrels            =  
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}}
}}


The '''{{wpl|British ordnance terms#BL|BL}} 40.6 cm/52 calibre Mk I gun''' is an Illuverendian {{cvt|406|mm|in}} {{wpl|Naval gun|naval gun}} that serves as the main battery armament of multiple [[Royal Illuverendian Navy]] battleships. The guns were exclusively designed for use onboard the {{sclass-|Albemarle|battleship|4}} and were later reused for the [[New Generation Fast Battleships]].
The '''{{wpl|British ordnance terms#BL|BL}} 40.6 cm/52 calibre Mk I gun''' ([[Illusian language|Illusian]] designation ''40,6 cm K/52 SK C/47''<ref group=Note>K – ''Kaliber'' (calibre); ''SK – Schiffskanone'' (ship cannon); ''C – Construktionsjahr'' (year of design)</ref>) is an Illuverendian {{cvt|406|mm|in}} {{wpl|Naval gun|naval gun}} that serves as the main battery armament of multiple [[Royal Illuverendian Navy]] battleships. First introduced in 2049 as an improvement to the older {{wpl|16-inch/50-caliber Mark 7 gun|BL 40.6 cm/50-calibre gun}}, they were installed onboard the {{sclass-|Albemarle|battleship|1}}s and was also used for the [[New Generation Fast Battleships]].
 
== Design ==
=== Gun ===
At the orders of the reinstated Royal Illuverendian Navy in 2047, Project S-51 commenced, ordering the production of new Illuverendian heavy battleships that would succeed the [[Stratocratic Illuverendia|Stratocracy]]'s S-50 battleships. Project S-51 also mandated the creation of a new {{cvt|406|mm|in}} naval gun, as the previous ones were antiquated, and were seen as a symbol of naval power of the Stratocracy. As the keels of the ''Albemarle'' class of battleships were laid down a month after the coronation of [[Alyssa of Illuverendia|Alyssa]], so began the designing process of the new gun, designated N-MB/c406.
 
The first gun prototype was delivered a year later, and underwent rigorous testing stages, and proved to be satisfactory. At the same time the prototype was unveiled, the [[New Generation Fast Battleships]] project came into force, and the design teams, impressed by the gun's performance, also selected the gun to be the main batteries of their ships.
=== Mounting ===
All shipboard mountings of the Mk I gun used an improved mounting from its predecessor. It was designated as the Mk I mount (''Drh LC/47''<ref group=Note>''Drh L - Drehscheiben Lafette'' ({{literal translation|turntable mounting}}); ''C – Construktionsjahr'' (year of design)</ref>), with an elevation of -2° to +45°, moving at 12 degrees per second. The Mk I mount was reused later for the larger [[BL 46 cm/48 calibre Mk VI gun]].
 
== Description ==
The 40.6 cm/52 gun is an improved, longer-barrel version of the previous Illuverendian {{wpl|16-inch/50-caliber Mark 7 gun|40.6 cm/50-calibre}} naval gun. Like its predecessor, the Mk I gun is a {{wpl|Built-up gun|built-up gun}}. A number of its components are {{wpl|Autofrettage|autofretted}}. Typical of Illuverendian naval guns, the bore is {{wpl|Chrome plating|chromium plated}}, and sports the standard {{wpl|Welin breech block|Sigmeyer breech block}}.
 
== Shell ==
 
== Notes ==
{{reflist|group=Note}}
 
== See also ==
* [[BL 46 cm/48 calibre Mk VI gun]]


[[category:Naval guns of Illusia and Neverendia]]
[[category:Naval guns of Illusia and Neverendia]]

Revision as of 09:25, 13 October 2021

Catsumiki.png
Note by Tsumiki: Any information here is subject to change. This article is a work in progress.
BL 40.6 cm/52 calibre Mk I gun
40,6 cm K/52 SK C/47
Hecate main battery.png
Forward batteries of HMS Hecate (FBB-59)
TypeNaval gun
Place of originIllusia and Neverendia
Service history
In service2049–present
Used byIllusia and Neverendia
WarsMemesterian Civil War
Production history
Designed2047
Produced2049–present
Specifications
Weight122,350 kg (269,740 lb) (including breech)
Length22.25 m (73 ft 0 in)
Barrel length21.112 m (69 ft 3.2 in) (52 calibres)

ShellAPCBC, HE
Shell weightAPCBC: 1,875 kg (4,134 lb)
HE: 975 kg (2,150 lb)
Calibre406 mm (16.0 in)
Recoil1.5 m (59 in)
Rate of fire2 rounds per minute
Muzzle velocity
  • APCBC (Mk XI): 760 m/s (2,500 ft/s)
  • HE (Mk XXVI): 785 m/s (2,580 ft/s)
Effective firing range32,150 m (35,160 yd) at 31° elevation
Maximum firing range35,275 m (38,577 yd)

The BL 40.6 cm/52 calibre Mk I gun (Illusian designation 40,6 cm K/52 SK C/47[Note 1]) is an Illuverendian 406 mm (16.0 in) naval gun that serves as the main battery armament of multiple Royal Illuverendian Navy battleships. First introduced in 2049 as an improvement to the older BL 40.6 cm/50-calibre gun, they were installed onboard the Albemarle-class battleships and was also used for the New Generation Fast Battleships.

Design

Gun

At the orders of the reinstated Royal Illuverendian Navy in 2047, Project S-51 commenced, ordering the production of new Illuverendian heavy battleships that would succeed the Stratocracy's S-50 battleships. Project S-51 also mandated the creation of a new 406 mm (16.0 in) naval gun, as the previous ones were antiquated, and were seen as a symbol of naval power of the Stratocracy. As the keels of the Albemarle class of battleships were laid down a month after the coronation of Alyssa, so began the designing process of the new gun, designated N-MB/c406.

The first gun prototype was delivered a year later, and underwent rigorous testing stages, and proved to be satisfactory. At the same time the prototype was unveiled, the New Generation Fast Battleships project came into force, and the design teams, impressed by the gun's performance, also selected the gun to be the main batteries of their ships.

Mounting

All shipboard mountings of the Mk I gun used an improved mounting from its predecessor. It was designated as the Mk I mount (Drh LC/47[Note 2]), with an elevation of -2° to +45°, moving at 12 degrees per second. The Mk I mount was reused later for the larger BL 46 cm/48 calibre Mk VI gun.

Description

The 40.6 cm/52 gun is an improved, longer-barrel version of the previous Illuverendian 40.6 cm/50-calibre naval gun. Like its predecessor, the Mk I gun is a built-up gun. A number of its components are autofretted. Typical of Illuverendian naval guns, the bore is chromium plated, and sports the standard Sigmeyer breech block.

Shell

Notes

  1. K – Kaliber (calibre); SK – Schiffskanone (ship cannon); C – Construktionsjahr (year of design)
  2. Drh L - Drehscheiben Lafette (lit. turntable mounting); C – Construktionsjahr (year of design)

See also