QF 4.7-inch Mk V naval gun
{{Use British English|date=January 2018}}
{{Infobox weapon
|name=QF 4.7 inch Gun Mk V
| image= SSA Orca gun 1919 AWM J02911.jpeg
| image_size = 300
|caption=On troopship {{SS|Orca|||2}}, March 1919
|origin=United Kingdom
Japan
|type=Naval gun
Coast defence gun
|is_artillery=yes
|is_ranged=yes
|is_explosive=yes
|is_UK=yes
|service=1900–1945
|used_by=British Empire
|wars=World War I
World War II
|designer=Elswick Ordnance
|design_date=ca. 1895
|manufacturer=
|unit_cost=
|production_date=
|number=
|variants=Mark V, Mark V*
|spec_label=
|weight=Barrel & breech {{convert|5936|lb|kg}}Hogg & Thurston 1972, page 108.
|length=
|part_length={{convert|212.6|in|m}} (45 cal)
|width=
|height=
|diameter=
|crew=
|cartridge=Separate loading QF {{convert|45|lb|kg|sigfig=4}} Common Pointed, Lyddite
|caliber={{convert|4.724|in|mm|0}}
|action=
|rate=Approx. 8-10 rounds per minuteDiGiulian
|velocity={{convert|2350|ft/s|m/s}}2,350 ft/second, firing a 45 lb projectile, using 8 lb 10 oz Cordite MD size 16 propellant. Hogg & Thurston 1972, page 108
|range=
|max_range={{convert|16500|yd|m}}
|feed=
|sights=
|breech=single motion interrupted screw
|carriage=
|elevation=-10° to +20°Campbell, Naval Weapons of WWII, p.52.
|traverse=
|filling=
|filling_weight=
|detonation=
|yield=
}}
The QF 4.7 inch Gun Mark V originated as a {{convert|4.7|in|mm|sp=us|abbr=on}} 45-calibre naval gun designed by the Elswick Ordnance Company for export customers and known as the Pattern Y.DiGiulian
United Kingdom service
The Royal Navy did not adopt the gun, but several were adopted by the army as coast defence guns around the United Kingdom from 1900 onwards. In World War I the UK acquired 620 of a version manufactured in Japan, and mounted them as anti-submarine guns on merchant ships and troop ships, under the designation Mark V*. Many of these guns were used again in World War II on defensively armed merchant ships and troop ships.
Notable actions
{{main|Action of 10 March 1917}}
On 10 March 1917 the crew of a single gun on the refrigerated cargo liner {{SS|Otaki|1908|2}} fought a notable action against the heavily-armed German commerce raider {{SMS|Möwe|1914|6}}. They managed to set the Möwe on fire and inflicted significant damage before the Otaki was sunk. Otaki's Master Archibald Bisset Smith went down with his ship and was posthumously awarded the Victoria Cross for refusing to surrender his ship.
See also
- Type 3 120 mm 45 caliber naval gun version in service with the Imperial Japanese Navy from 1918
- QF 4.7 inch Gun Mk I – IV 40-calibre version adopted by the Royal Navy
- List of naval guns
- Brixham Battery World War II Emergency Coastal Defence Battery using this gun
Notes
{{reflist|30em}}
References
- {{cite book|last=I.V. Hogg & L.F. Thurston |authorlink=Ian V. Hogg|title= British Artillery Weapons & Ammunition 1914–1918 |location=London |publisher=Ian Allan |year=1972}}
- {{cite web |last=Tony DiGiulian |url=http://navweaps.com/Weapons/WNBR_47-45_mk5.htm |title=British 4.7"/45 (12 cm) QF Mark V and Mark V*}}
- {{cite book|title=Naval Weapons of World War Two |author=Campbell, John |publisher=Naval Institute Press|year=1985|isbn=0-87021-459-4}}
External links
{{Commons category-inline|QF 4.7 inch Mk V naval gun}}
{{GreatWarBritishNavalWeapons}}
{{Use dmy dates|date=June 2017}}
{{DEFAULTSORT:QF 04.7 inch Mk 05}}