A 4.7 inch Gun is any of a number of British-built 120 mm naval

artillery Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during siege ...

gun A gun is a ranged weapon designed to use a shooting tube (gun barrel) to launch projectiles. The projectiles are typically solid, but can also be pressurized liquid (e.g. in water guns/cannons, spray guns for painting or pressure washing, pr ...

s. Several of these guns were designed and manufactured by the

Elswick Ordnance Company The Elswick Ordnance Company (sometimes referred to as Elswick Ordnance Works, but usually as "EOC") was a British armaments manufacturing company of the late 19th and early 20th century History Originally created in 1859 to separate William A ...

, part of

Armstrong Whitworth Sir W G Armstrong Whitworth & Co Ltd was a major British manufacturing company of the early years of the 20th century. With headquarters in Elswick, Newcastle upon Tyne, Armstrong Whitworth built armaments, ships, locomotives, automobiles and a ...

. They were a major export item and hence were actually of 120 mm calibre (4.724 inches) to meet the requirements of metricised navies (although the size was ultimately based on a 12-pound round shot), 4.7 inch is an approximation used for the British designation. 4.7 inch guns include: *

QF 4.7 inch Gun Mk I - IV QF may stand for: * Qantas, an airline of Australia (IATA code QF) * Qatar Foundation, a private, chartered, non-profit organization in the state of Qatar * Quality factor, in physics and engineering, a measure of the "quality" of a resonant system ...

British naval gun deployed on cruisers 1888 to 1918, also as a field gun in World War I *

QF 4.7 inch Mk V naval gun The QF 4.7 inch Gun Mark V originated as a Caliber (artillery), 45-calibre naval gun designed by the Armstrong Whitworth#Elswick Ordnance Company, Elswick Ordnance Company for export customers and known as the Pattern Y.DiGiulian United Kingdom ...

Japanese-built gun, armed British merchant ships in World War I & World War II * BL 4.7 inch /45 naval gun British naval gun used 1918 to 1945 *

QF 4.7 inch Mk VIII naval gun The QF 4.7 inch Gun Mark VIII was a British naval anti-aircraft gun designed in the 1920s for the Royal Navy. This was the largest caliber fixed ammunition gun ever in service in the RN, though the round was considerably shorter and lighter than ...

British anti-aircraft gun on Nelson class battleships in World War II * 4.7 inch QF Mark IX & XII British naval guns deployed on destroyers in World War II *

QF 4.7 inch Mark XI gun The 4.7 inch QF Mark XIMark XI = Mark 11. Britain used Roman numerals to denote Marks (i.e. models) of ordnance until after World War II. Hence this article covers the eleventh model of British QF 4.7-inch gun. was a 50-calibre, naval gun ...

British naval gun deployed on destroyers in World War II

See also