Lugh-class battleship: Difference between revisions

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|Operators            = {{flagicon|Ossoria}} [[Royal Ossorian Navy]]
|Operators            = {{flagicon|Ossoria}} [[Royal Ossorian Navy]]
|Class before          = [[Aífe-class battleship|''Aífe''-class]]
|Class before          = [[Aífe-class battleship|''Aífe''-class]]
|Class after          = [[Areadbhar-class battleship|''Areadbhar''-class]]
|Class after          = [[Mórrígan-class battleship|''Mórrígan''-class]]
|Subclasses            =  
|Subclasses            =  
|Built range          =  
|Built range          =  
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|Ship EW              =  
|Ship EW              =  
|Ship armament        =  
|Ship armament        =  
* 8 x 406 mm/45 caliber guns   
* 8 x 420 mm/45 caliber guns   
* 20 x twin 120 mm/45 caliber dual-purpose guns   
* 10 x twin 115 mm/45 caliber dual-purpose guns   
* 40 x quad 40 mm/55 caliber anti-aircraft guns
* 10 x quad 40 mm/55 caliber anti-aircraft guns
* 40 x single 20 mm/70 caliber anti-aircraft guns
* 40 x single 20 mm/70 caliber anti-aircraft guns
|Ship armor            =  
|Ship armor            =  
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The ''Lugh''-class ships were 256 metres long overall, had a beam of 33 m and a draught of 11 m with a normal displacement of 49,958 t. The ships were powered by four screws powered by four turbines driven by steam provided by eight 3-drum oil-fired boilers. The engines were rated at approximately 170,000 shaft horsepower and delivered a top speed of 30 knots. ''Lugh'' and her sisters were capable of a maximum range of 11,000 nautical miles at a cruising speed of 15 knots.
The ''Lugh''-class ships were 256 metres long overall, had a beam of 33 m and a draught of 11 m with a normal displacement of 49,958 t. The ships were powered by four screws powered by four turbines driven by steam provided by eight 3-drum oil-fired boilers. The engines were rated at approximately 170,000 shaft horsepower and delivered a top speed of 30 knots. ''Lugh'' and her sisters were capable of a maximum range of 11,000 nautical miles at a cruising speed of 15 knots.
=== Armament ===
=== Armament ===
The ''Lugh''-class ships mounted a main battery of eight 40.6 cm breach-loading guns mounted in four two-gun hydraulically powered {{wp|Gun turret|turrets}} placed in two superfiring pairs fore and aft of the superstructure, ("Beith" and "Luis" turrets forward and "Saille" and "Nion" turrets aft). The gun housings allowed for the guns to depress to −3° and elevate to 45°, though the guns were loaded at +5°. The gun turrets could train 150° degrees on either side of the ship. The guns could fire 1,200 kg shells at a rate of approximately two rounds per minute, and were capable of firing a variety of shells. At their maximum elevation of 45°, the guns had a range of approximately 37,000 m.
The ''Lugh''-class ships mounted a main battery of eight 42 cm breach-loading guns mounted in four two-gun hydraulically powered {{wp|Gun turret|turrets}} placed in two superfiring pairs fore and aft of the superstructure, ("Beith" and "Luis" turrets forward and "Saille" and "Nion" turrets aft). The gun housings allowed for the guns to depress to −3° and elevate to 45°, though the guns were loaded at +5°. The gun turrets could train 150° degrees on either side of the ship. The guns could fire 1,200 kg shells at a rate of approximately two rounds per minute, and were capable of firing a variety of shells. At their maximum elevation of 45°, the guns had a range of approximately 37,000 m.


The secondary battery consisted of twenty 12 cm {{wp|Dual-purpose gun|dual-purpose guns}} mounted in twin turrets amidships. These guns fired 25 kg shells at a rate of approximately 12 rounds per minute. The guns could elevate to 80°, which enabled a maximum range of 19,000 m.
The secondary battery consisted of twenty 115mm {{wp|Dual-purpose gun|dual-purpose guns}} mounted in twin turrets amidships. These guns fired 25 kg shells at a rate of approximately 12 rounds per minute. The guns could elevate to 80°, which enabled a maximum range of 19,000 m.
=== Armor ===
=== Armor ===
The ''Lugh''-class ships had an {{wp|All or nothing (armor)|all or nothing}} armor layout, with its armor belt that was 40 cm thick in the central area of the ship (covering the ammunition magazines, machinery spaces, and other vital parts of the ship) leaving the fore and aft sections of the side hull unarmored. The main gun turrets were 35 cm on the sides and 75 mm on the rear, where shells were less likely to hit. The barbettes in which the turrets sat were 35 cm thick. The ships' armored deck was 150 mm thick across the maindeck and the quarterdeck.
The ''Lugh''-class ships had an {{wp|All or nothing (armor)|all or nothing}} armor layout, with its armor belt that was 40 cm thick in the central area of the ship (covering the ammunition magazines, machinery spaces, and other vital parts of the ship) leaving the fore and aft sections of the side hull unarmored. The main gun turrets were 35 cm on the sides and 75 mm on the rear, where shells were less likely to hit. The barbettes in which the turrets sat were 35 cm thick. The ships' armored deck was 150 mm thick across the maindeck and the quarterdeck.
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|-
|-
| ''Lugh''
| ''Lugh''
| Goddess of Warfare
| God of Light
| HRM Dockyard, Gabhrán
| HRM Dockyard, Gabhrán
| 1936
| 1936
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|-
|-
| ''Andraste''
| ''Andraste''
| Goddess of  
| Goddess of Victory
| HRM Dockyard, Thiar
| HRM Dockyard, Thiar
| 1936
| 1936
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|-
|-
| ''Osraí''
| ''Osraí''
| Goddess of  
| Goddess of Ossoria
| HRM Dockyard, Cléire
| HRM Dockyard, Cléire
| 1936
| 1936
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|-
|-
| ''Scáthach''
| ''Scáthach''
| Goddess of  
| Goddess of Strategy
| HRM Dockyard, Thiar
| HRM Dockyard, Thiar
| 1936
| 1936
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|-
|-
| ''Étaín''
| ''Étaín''
| Goddess of  
| Goddess of the Stars
| HRM Dockyard, Gabhrán
| HRM Dockyard, Gabhrán
| 1936
| 1936
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|-
|-
| ''Triana''
| ''Triana''
| Goddess of  
| Goddess of Magic
| HRM Dockyard, Cléire
| HRM Dockyard, Cléire
| 1936
| 1936

Latest revision as of 18:03, 10 May 2021

HMS Vanguard (23) underway, circa in the late 1940s.jpg
Class overview
Name: Lugh-class battleship
Operators: Ossoria Royal Ossorian Navy
Preceded by: Aífe-class
Succeeded by: Mórrígan-class
In commission: 1937 - 1980
Planned: 6
Completed: 6
Preserved: 6
General characteristics
Type: Battleship
Displacement:
  • 48,512 t standard
  • 54,549 t full load
Length: 248 meters
Beam: 33 meters
Draught: 11 meters
Propulsion:
  • 8 x 8 3-drum boilers
  • 4 x geared turbines
  • 4 x screws
Speed: 30 kts
Range: 10,000 nm at 15 kts
Complement: 1,738
Armament:
  • 8 x 420 mm/45 caliber guns
  • 10 x twin 115 mm/45 caliber dual-purpose guns
  • 10 x quad 40 mm/55 caliber anti-aircraft guns
  • 40 x single 20 mm/70 caliber anti-aircraft guns
Armor:
  • Belt: 400 mm
  • Deck: 150 mm
  • Gun: 350 mm
  • Barbette: 350 mm
  • Bulkhead: 300 mm
  • Conning tower: 100 mm

The Lugh-class was a class of six fast battleships built for the Royal Ossorian Navy starting in 1930. The class comprised of the ships Lugh, Andraste, Osraí, Scáthach, Étaín, and Triana. They were up-gunned and upgraded repeats of the earlier Aífe-class, sacrificing some endurance for a heavier armament.

Design

General characteristics

The Lugh-class ships were 256 metres long overall, had a beam of 33 m and a draught of 11 m with a normal displacement of 49,958 t. The ships were powered by four screws powered by four turbines driven by steam provided by eight 3-drum oil-fired boilers. The engines were rated at approximately 170,000 shaft horsepower and delivered a top speed of 30 knots. Lugh and her sisters were capable of a maximum range of 11,000 nautical miles at a cruising speed of 15 knots.

Armament

The Lugh-class ships mounted a main battery of eight 42 cm breach-loading guns mounted in four two-gun hydraulically powered turrets placed in two superfiring pairs fore and aft of the superstructure, ("Beith" and "Luis" turrets forward and "Saille" and "Nion" turrets aft). The gun housings allowed for the guns to depress to −3° and elevate to 45°, though the guns were loaded at +5°. The gun turrets could train 150° degrees on either side of the ship. The guns could fire 1,200 kg shells at a rate of approximately two rounds per minute, and were capable of firing a variety of shells. At their maximum elevation of 45°, the guns had a range of approximately 37,000 m.

The secondary battery consisted of twenty 115mm dual-purpose guns mounted in twin turrets amidships. These guns fired 25 kg shells at a rate of approximately 12 rounds per minute. The guns could elevate to 80°, which enabled a maximum range of 19,000 m.

Armor

The Lugh-class ships had an all or nothing armor layout, with its armor belt that was 40 cm thick in the central area of the ship (covering the ammunition magazines, machinery spaces, and other vital parts of the ship) leaving the fore and aft sections of the side hull unarmored. The main gun turrets were 35 cm on the sides and 75 mm on the rear, where shells were less likely to hit. The barbettes in which the turrets sat were 35 cm thick. The ships' armored deck was 150 mm thick across the maindeck and the quarterdeck.

Ships

Ship Namesake Builder Laid down Launched Commissioned Fate
Lugh God of Light HRM Dockyard, Gabhrán 1936 1937 1940
Andraste Goddess of Victory HRM Dockyard, Thiar 1936 1937 1940
Osraí Goddess of Ossoria HRM Dockyard, Cléire 1936 1937 1940
Scáthach Goddess of Strategy HRM Dockyard, Thiar 1936 1937 1940
Étaín Goddess of the Stars HRM Dockyard, Gabhrán 1936 1937 1940
Triana Goddess of Magic HRM Dockyard, Cléire 1936 1937 1940

Lugh

Andraste

Osraí

Scáthach

Étaín

Triana

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