BL 4 inch naval gun Mk II - VI
- BL 4 inch naval gun Mk II - VI
Infobox Weapon
name= Ordnance BL 4 inch gun Mk II - Mk VI
caption=
origin= United Kingdom
type= Naval gun
is_ranged=yes
is_explosive=
is_artillery=yes
is_UK=yes
service=1880s - 190?
used_by=UK
wars=
designer=
design_date=
manufacturer=
production_date=
number=
variants=
weight=
length=
part_length=convert|108|in|m|sigfig=4 bore (27 calibres)[ ]
width=
height=
crew=
cartridge=convert|25|lb|kg|sigfig=4
caliber=convert|4|in|mm|sing=on|sigfig=4
action=
rate=
velocity=convert|1900|ft/s|m/s [1,900 ft/sec with 25 lb projectile, using 12 lb S.P. (gunpowder) or 3 lb 1 oz cordite MK I size 5 propellant (Text Book of Gunnery, 1902]
range=
max_range= convert|7700|yd|m[Text Book of Gunnery, 1902] ]
sights=
breech=3-motion screw
recoil=
carriage=
elevation=
traverse=The BL 4-inch gun Mk II - Mk VI were a family of early British breech-loading 4-inch naval guns, all with 27-calibres length barrels.
History
The guns armed the following warships :
*HMS Inflexible as re-gunned in 1885
*HMS Alexandra as re-gunned in 1891
QFC 4 inch gun
A small number of these guns were converted to QF to use the same cartridges as the QF 4 in gun. They were designated Mk I/IV, I/VI etc. depending on which Mark of BL 4-inch had been converted. All had a bore of 27.85 calibres after conversion, with a muzzle velocity of 2,177 ft/second.ee also
*List of artillery#Naval_guns
Notes
References
* [http://cgsc.cdmhost.com/u?/p4013coll11,230 Text Book of Gunnery, 1902. LONDON : PRINTED FOR HIS MAJESTY'S STATIONERY OFFICE, BY HARRISON AND SONS, ST. MARTIN'S LANE]
*Tony DiGiulian, [http://www.navweaps.com/Weapons/WNBR_4-25_mk1.htm British Early 4" (10.2 cm) Breech Loaders]
External links
Wikimedia Foundation.
2010.
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