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词条 BL 13.5-inch Mk V naval gun
释义

  1. Background

  2. Characteristics

  3. Variants

     Railway guns  Experimental hypervelocity gun 

  4. Service

  5. See also

     Weapons of comparable role, performance and era 

  6. Notes

  7. References

  8. Bibliography

  9. External links

{{Use dmy dates|date=January 2017}}{{Use British English|date=January 2017}}{{Infobox weapon
|name=BL 13.5 inch Mk V gun
| image= HMS Thunderer 13.5 inch Turrets.jpg
| image_size = 300
|caption=Rear turrets of HMS Thunderer
|origin= United Kingdom
|type=Naval gun
|is_ranged=yes
|is_artillery=yes
|is_UK=yes
|service=1912 - 1940s (as railway gun)
|used_by= United Kingdom
|wars=World War I
World War II
|designer= Vickers
|design_date=1909
|manufacturer=
|unit_cost=
|production_date=
|number=
|variants=Mk V(L)
Mk V(H)
|weight=
|length=
|part_length=Bore {{convert|50|ft|6|in|m|abbr=on|sigfig=5}} (45 cal)
|width=
|height=
|crew=
|caliber={{convert|13.5|in|mm|sigfig=4|sing=on}}
|cartridge=H: {{convert|1400|lb|kg|abbr=on|sigfig=5}}
L: {{convert|1250|lb|kg|abbr=on|sigfig=5}} HE, AP[1]
|action=
|rate=
|velocity=H: {{convert|2491|ft/s|m/s|abbr=on|sigfig=3}}
L: {{convert|2582|ft/s|m/s|abbr=on|sigfig=3}}
|range=
|max_range=H: {{convert|23740|yd|m|sigfig=4}} at 20°
L: {{convert|23820|yd|m|sigfig=4}} at 20°
H: {{convert|40600|yd|m|sigfig=4}} at 40° (World War II railway gun, with Super Charge)
|feed=
|sights=
|breech=
|recoil=
|carriage=
|elevation=Naval: 0° - 20°
Railway: 0° - 40°
|traverse=
}}

The BL 13.5 inch Mk V gun[2] was a British heavy naval gun, introduced in 1912 as the main armament for the new super-dreadnought battleships of the {{sclass-|Orion|battleship|4}}. 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 and unrelated to the earlier 13.5-inch (30-calibre) Mk I to Mk IV guns used on the {{sclass-|Admiral|ironclad|5}}, {{sclass-|Trafalgar|battleship|5}} and {{sclass-|Royal Sovereign|battleship|4}}es completed between 1888 and 1896.

Background

The gun was developed in response to the relative failure of the British high-velocity 12-inch Mk XI and XII guns. Unlike Germany, which developed and deployed successful high-velocity 12-inch guns, Britain in this case switched to guns firing larger and heavier shells at lower velocity which could achieve similar performance in range and armour penetration but could deliver a heavier explosive charge on impact.

Characteristics

The gun was wire-wound and 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.[3]

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").[3]

Railway guns

Three BL 13.5 inch /45 Mark V guns, named Gladiator, Piece Maker{{sic}} 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.

Experimental hypervelocity gun

A 13.5/8 inch hypervelocity gun (a type of supergun) for stratospheric experiments was developed and deployed near St Margaret's in Kent. The weapon was a 13.5 inch gun Mark V lined down to 8 inches; the liner projected several feet beyond the 13.5 inch barrel. The concept was suggested by F. A. Lindemann, Winston Churchill's scientific advisor.[6] Due to its deployment near the heavy cross-Channel guns and manning by the Royal Marine Siege Regiment, it is often erroneously assumed to have been intended as a cross-Channel gun. It was initially named Wilfred, but this was soon changed to Bruce, after Admiral Sir Bruce Fraser.[7] The projectiles were custom-made with external rifling to match the gun's rifling, with tighter tolerances than normal; this resulted in the need for a screwdriver-type tool to ram the projectiles. The rate of fire was very low as a result; but this was not a major concern in an experimental piece. Both High Explosive and High Velocity shells were made for the gun; the High Velocity shell was a smoke shell, intended to burst at high altitude. Observations of the smoke were used to study conditions in the stratosphere. The gun was first test-fired in June 1942 at the Isle of Grain, also in Kent.[7] The gun was deployed near St. Margaret's on 21 January 1943 and experimental firing commenced on 30 March 1943. Successful experiments with smoke shells were conducted in February 1944. The intended burst zone for the smoke shells was {{convert|30|miles|km}} horizontally from the gun and {{convert|95,000|feet}} altitude. These trials resulted in the need for a new barrel or liner; the replacement took about two weeks.[7] The data from these experiments was important in the development of the Grand Slam bomb.[8] After further experimental firings, the weapon was taken out of service in February 1945.[7]

Service

British warships with the BL 13.5 inch /45 gun;

  • {{sclass-|Orion|battleship|2}}s: Mark V(L)
  • {{sclass-|King George V|battleship (1911)|0}} battleships of 1911: Mark V(H)
  • {{sclass-|Iron Duke|battleship|2}}s: Mark V(H)
  • {{HMS|Erin}}, a battleship: Mark V(H)
  • {{sclass-|Lion|battlecruiser|2}}s: Mark V(L)
  • {{HMS|Queen Mary}}, a battlecruiser : Mark V(H)
  • {{HMS|Tiger|1913|6}}, a battlecruiser : Mark V(H)

See also

  • BL 15 inch Mk I naval gun British successor
  • List of naval guns
  • Cross-Channel guns in the Second World War - 13.5 inch and other large guns deployed in Kent, also German equivalents

Weapons of comparable role, performance and era

  • 340mm/45 Modèle 1912 gun French equivalent

Notes

1. ^The gun had a Heavy (H) shell of {{convert|1400|lb|abbr=on}} and a Light (L) shell of {{convert|1250|lb|abbr=on}}. Some guns were designated H or L to make clear they were intended for the heavy or light shell.
2. ^Mk V = Mark 5. Britain used Roman numerals to identify Marks (models) of ordnance until after World War II. This was the fifth model of British 13.5 inch gun
3. ^navweaps.com - 13.5-in/45 Mark V
4. ^Dale Clarke. "British Artillery 1914-19. Heavy Artillery". Osprey Publishing, London, 2005. Pages 41-42
5. ^http://www.doverpages.co.uk/big_guns.htm {{Webarchive|url=https://web.archive.org/web/20071221040418/http://www.doverpages.co.uk/big_guns.htm |date=21 December 2007 }} The Big Guns At Dover WW2
6. ^Maurice-Jones, p. 240
7. ^Sussex History Forum post with material from RMSR War Diary
8. ^Flower, p. 95

References

{{reflist}}

Bibliography

  • DiGiulian,Tony, British 13.5"/45 (34.3 cm) Mark V(L) 13.5"/45 (34.3 cm) Mark V(H)
  • {{Cite book |last=Flower |first=Stephen |title=Barnes Wallis’ Bombs |year=2004 |publisher=Tempus Publishing Ltd |location=Strood |isbn=0-7524-2987-6 |ref=}}
  • {{Cite book |last=Maurice-Jones |first=K. W. |title=The History of Coast Artillery in the British Army |year=2009 |publisher=The Naval & Military Press Ltd |location=Uckfield, East Sussex |isbn=1-8457-4031-9 |ref=}}

External links

{{Commons category|BL 13.5 inch Mk V naval gun}}
  • Vickers Photographic Archives
  • British 13.5"/45 (34.3 cm) Mark V(L) 13.5"/45 (34.3 cm) Mark V(H) at navweaps.com
{{GreatWarBritishNavalWeapons}}{{WWIIBritishCommGuns}}{{DEFAULTSORT:BL 13.5 inch Mk 05 gun}}

8 : Naval guns of the United Kingdom|World War I naval weapons of the United Kingdom|World War II railway artillery of the United Kingdom|Railway guns|Vickers|340 mm artillery|Superguns|Coastal artillery

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