BL 8-inch ship gun Mk VIII

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BL 8-inch ship gun Mk VIII


General Information
Manufacturer country: Great Britain
Development year: 1923
Production time: 1927 to 1954
Number of pieces: 168
Technical specifications
Pipe length: 8.796 m
Caliber :

20.3 cm

Caliber length : L / 43.3
Cadence : 3-6 rounds / min
Turning speed: 5-6 ° / s
Increase speed: 4 - 5.5 ° / s
Furnishing
Penetration: 3.23 t / cm 2
Propellant charge: 29.94 kg SC 205
Grenade weight: 116.1 kg

The BL 8-inch naval gun Mk VIII was a British naval gun of the Royal Navy . It was designed in 1923 and entered service in 1927.

technology

The Mk VIII guns had a maximum range of 28 kilometers and the muzzle velocity was 855 meters per second. A bullet of the SAPC version (English Semi Armor Piecing, Capped , Panzersprenggranate with hard metal cap ) weighed 116 kg and was 91.4 cm long. The rate of fire was five shots per minute. The explosive charge weighed depending on the type with SAPC 5.2 kg and (English at HE high explosive , explosive shell with head or bottom detonator, not armor-piercing) about 10 kg, the propellant charges consisted of 30 kg each black powder like SC 205. The magazines have in Execution for the County class with a capacity of 125 to 150 shells. The working pressure was around 3.23 t per cm 2 .

history

The gun was planned in 1923 as the main gun for cruisers under the Washington Naval Agreement , as the arms race on ships of this type had started immediately afterwards. The reason for the increased construction of cruisers was that the fleet agreement only set few conditions. These were only the limitation of the tonnage to 10,000 ts and a limitation of the main caliber to a maximum of 20.3 cm. After three years as the standard weapon for British cruisers, the Mk VIII was replaced in 1930 by the 6 inch Mk XXIII gun, which remained in service until 1985, as this was preferred because of its shorter reload time.

Uses

The Mk VIII served as the main armament of the County class and was the standard weapon of British cruisers from 1927 to 1930.

Norfolk class

Kent class

  • HMS Kent 8 pieces in 4 twin towers Mk I

London class

York class

Furthermore, 8 units of the Mk VIII were installed in 4 twin towers Mk II at HMAS Australia .

Web links

Commons : BL 8 inch Mk VIII naval gun  - Collection of images, videos and audio files

Individual evidence

  1. ↑ a b Mark VIII at Naval Weapons. Retrieved April 29, 2010 (English).
  2. ↑ Mk VIII from Naval Weapons , accessed May 27, 2010.
British artillery of World War II
Chariot cannons

QF 2-pounder • QF 3-pounder • QF 6-pounder • QF 75mm • QF 3-inch howitzer • QF 17-pounder • 77mm HV • QF 95mm howitzer

Anti-tank

QF 2-pounder • QF 6-pounder • QF 17-pounder

Field guns
and howitzers

75mm M1917 gun • QF-18-pounder • QF 25-pounder • QF 25-pounder short • QF 4.5-inch howitzer

Medium and
heavy artillery

BL 4.5-inch medium field gun • BL 60-pounder • BL 5.5-inch medium gun • BL 6-inch 26-cwt howitzer • BL 6-inch Mk XIX gun • 155-mm long tom • BL 7.2-inch howitzer • BL 8-inch howitzer Mk VII • BL 9.2-inch howitzer • 240-mm howitzer M1

Mountain artillery

75mm Mountain Howitzer M1 • QF 3.7 '' Mountain Howitzer

Grenade launcher

2 inch mortar • 3 inch mortar • 4.2 inch mortar

Air defense

Z Battery • 20mm Oerlikon cannon • Polsten 20mm anti-aircraft gun • QF 1½-pounder Mk III • QF 2-pounder naval gun • 40mm Bofors gun • QF 3-inch 20-cwt anti-aircraft gun • QF 3.7 "Flak • QF 4.5" Mk II • QF 5.25 "Mk II

Coastal artillery

QF 6 pounder 10 cwt gun • QF 12 pounder 12 cwt naval gun • QF 4.7-inch naval gun Mk I – IV • BL 6 inch Mk VII naval gun • BL 7.5-inch MK VII • BL 8-inch Mk VIII • BL 9.2-inch Mk X • BL 14-inch Mk VII • BL 15-inch Mk I

Railway guns

BL 9.2-inch railway gun • BL 12-inch MkV railway howitzer • BL 13.5-inch Mk V railway gun • BL 18-inch railway howitzer