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BL 13.5 inch Mk V naval gun: Wikis

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BL 13.5 inch Mk V gun
HMSEmperorOfIndiaAft13.5inchGuns.jpg
Aft guns of HMS Emperor of India
Type Naval gun
Place of origin  United Kingdom
Service history
In service 1912 - 1940s (as railway gun)
Used by  United Kingdom
Wars World War I
World War II
Production history
Designer Vickers
Designed 1909
Variants Mk V(L)
Mk V(H)
Mk VI
Specifications
Barrel length Bore 607.5 inches (15.430 m) (45 cal)

Shell AP, HE 1,400 pounds (635.03 kg) (H); 1,250 pounds (566.99 kg) (L)[1]
Calibre 13.5-inch (342.9 mm)
Elevation 0° - 20° (naval); 0 - 40° (Railway)
Muzzle velocity 2,582 feet per second (787 m/s) (L); 2,491 feet per second (759 m/s) (H)
Maximum range 23,820 yards (21,780 m) at 20° (L); 23,740 yards (21,710 m) at 20° (H); 40,600 yards (37,120 m) at 40° (H, WWII railway gun, with Super Charge)

The BL 13.5 inch Mk V gun was a British heavy naval gun, introduced in 1912 as the main armament for the new super-dreadnought battleships of the Orion class. The calibre was 13.5 inches (343 mm) and the barrels were 45 calibres long i.e. 607.5 inches (15.43 m). The guns were greatly superior to the earlier 13.5-inch (30-calibre) Mk I to Mk IV guns used on the Admiral, Trafalgar and Royal Sovereign classes completed between 1888 and 1896.

Contents

Characteristics

Q turret of HMS Lion after the Battle of Jutland, June 1916

The gun weighed approximately 168,000 lb (76 tonnes) (excluding the breech), and in its original form fired a 1,250 lb (567 kg) armour-piercing capped (APC) or high-explosive (HE) round a distance of 23,800 yards (21,800 m) at a 20-degree elevation.[2]

Variants

Due to the excellent characteristics of the gun, it was decided to increase the weight of shell to 1,400 lb (635 kg), with an increased firing charge to achieve about the same range. The gun firing the lighter shell was designated Mark V(L) (for "light") by the Royal Navy, and the 1,400 lb version Mark V(H) (for "heavy").[2] A very similar 1,400 lb gun, designed for the Turkish battleship Reshadieh, received the designation Mark VI when the ship was requisitioned by the British government after the outbreak of the First World War, eventually being commissioned as HMS Erin.[3]

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Railway guns

Three BL 13.5 inch /45 Mark V guns, named Gladiator, Piece Maker and Scene Shifter, were mounted on railway chassis during World War II for use as railway guns[4]. Scene Shifter re-used a railway truck which had carried a BL 14 inch Railway Gun in the First World War. In 1940 these guns were issued to the Royal Marine Siege Regiment at Dover in Kent to bombard German batteries and shipping in the Calais area[5]. They could be stored in railway tunnels when not in use to protect them from attack.

Service

British warships with the BL 13.5 inch /45 gun;

See also

Notes

  1. ^ The gun had a Heavy (H) shell of 1,400 lb (640 kg) and a Light (L) shell of 1,250 lb (570 kg). Some guns were designated H or L to designated they were intended for the heavy or light shell.
  2. ^ a b navweaps.com - 13.5-in/45 Mark V
  3. ^ navweaps.com - 13.5-in/45 Mark VI
  4. ^ Dale Clarke. "British Artillery 1914-19. Heavy Artillery". Osprey Publishing, London, 2005. Seite 41-42
  5. ^ http://www.doverpages.co.uk/big_guns.htm The Big Guns At Dover WW2 World War Two

References

External links


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