The
BL 4-inch Mark VIII naval gun
[Mark VIII = Mark 8. Mark XI = Mark 11. Britain used ]Roman numerals
Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers are written with combinations of letters from the Latin alphabet, eac ...
to denote marks (models) of ordnance until after World War II. This was the eighth model of British BL 4-inch gun. was a British medium-velocity
wire-wound naval gun introduced in 1908 as an anti-
torpedo boat
A torpedo boat is a relatively small and fast naval ship designed to carry torpedoes into battle. The first designs were steam-powered craft dedicated to ramming enemy ships with explosive spar torpedoes. Later evolutions launched variants of ...
gun in smaller ships whose decks could not support the strain of the heavier and more powerful
Mk VII gun.
[HANDBOOK for the 4" Mark VII. and VIII. B.L. Guns 1913]
Mk VIII history

The gun succeeded the
QF 4-inch Mk III, whose shell had been considered insufficiently powerful for its intended role. The BL Mk VIII fired a shell. It armed the following warships :
* laid down 1905
* destroyers from (1908) onwards.
* of 1909
* s of 1910
* s of 1910
* s (Australia) of 1910.
The gun was succeeded in its class from 1911 by the
QF 4-inch Mk IV.
In
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
many guns were used to
arm merchant ships.
Mk XI submarine gun
A Mark XI-variant was adapted to arm the
K-class submarines laid down 1915.
See also
*
List of naval guns
List of Naval Guns by country of origin
List of naval guns by caliber size
Naval anti-aircraft guns
See also
*List of artillery
* List of the largest cannon by caliber
*Glossary of British ordnance terms
*Naval artillery
References
Ext ...
* German
10.5 cm SK L/40 naval gun – firing slightly heavier shell
Notes
References
Sources
HANDBOOK for the 4" Mark VII. and VIII. B.L. Guns 1913 (Corrected to September 1913.) ADMIRALTY Gunnery Branch, G.8652/13
External links
* Tony DiGiulian
{{DEFAULTSORT:BL 04-inch Mk 08 gun
Naval guns of the United Kingdom
World War I naval weapons of the United Kingdom
100 mm artillery