BL 4 inch naval gun Mk VII
- BL 4 inch naval gun Mk VII
Infobox Weapon
name= Ordnance BL 4 inch gun Mk VII
caption=On HMAS "Australia", 1918
origin= United Kingdom
type= Naval gun
is_ranged=yes
is_explosive=
is_artillery=yes
is_UK=yes
service=1908 - 1945
used_by=UK
wars=
designer=
design_date=
manufacturer=
production_date=
number=
variants=
weight=convert|4704|lb|kg|sigfig=3 (barrel & breech)
length=
part_length=convert|201.25|in|m|sigfig=4 bore (50.3 calibres)[HANDBOOK for the 4" Mark VII. and VIII. B.L. Guns 1913] ]
width=
height=
crew=
cartridge=convert|31|lb|kg|sigfig=4 Common pointed, Common lyddite
caliber=convert|4|in|mm|sigfig=4
action=
rate=
velocity=convert|2852|ft/s|m/s [2852 ft/second firing a 31 lb 3 C.R.H. projectile, using 9 lb 5 oz 15 drams cordite MD size 16 propellant. HANDBOOK for the 4" Mark VII. and VIII. B.L. Guns 1913.]
range=
max_range= convert|11600|yd|m [DiGiulian]
sights=
breech=Welin, single-motion screw
recoil=
carriage=
elevation=
traverse=[.]History
The guns armed the following warships :
*"Bellerophon" class battleships laid down 1906
*"St. Vincent" class battleships laid down 1907
*"Boadicea" class scout cruisers laid down 1907
*HMS "Neptune" laid down 1909
*"Colossus" class battleships laid down 1909
*"Indefatigable" class battlecruisers laid down 1909
*"Orion" class battleships laid down 1909
*"Lion" class battlecruisers laid down 1909
*"Bristol" class light cruisers laid down 1909
*"Blonde" class scout cruisers laid down 1909
*"Active" class scout cruisers laid down 1910
*"King George V" class battleships laid down 1911
In World War II many guns were used to arm merchant ships.
Image gallery
ee also
*List of artillery#Naval_guns
Notes
References
* [http://www.gwpda.org/naval/hb4_inch.htm HANDBOOK for the 4" Mark VII. and VIII. B.L. Guns 1913 (Corrected to September 1913.) ADMIRALTY Gunnery Branch, G.8652/13]
*Tony DiGiulian, [http://www.navweaps.com/Weapons/WNBR_4-50_mk7.htm British 4"/50 (10.2 cm) BL Mark VII]
External links
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2010.
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