List of British naval forces military equipment of World War II

This is a list of the military equipment of the Royal Navy and other British naval forces of World War II. This list shows the equipment for British naval and naval aviation forces like naval artillery on board British ships and boats as well as the weapons used by British naval forces such as torpedoes and naval mines.

Battleship and monitor main armament

 * BL 14-inch Mk VII
 * BL 15-inch Mk I
 * BL 16-inch Mk I

Heavy cruiser main armament

 * BL 7.5-inch Mk VI
 * BL 8-inch Mk VIII

Light cruiser main armament and battleship and heavy cruiser secondary armament

 * QF 4-inch Mk V
 * QF 5.25-inch Mk I dual-purpose gun, used on King George V-class battleships and Dido-class cruisers
 * BL 6-inch Mk XII
 * BL 6-inch Mk XXII
 * BL 6-inch Mk XXIII

Small ship main armament
British made US naval artillery obtained by Lend-Lease and destroyers for bases agreement
 * QF 6-pounder 10 cwt
 * QF 12-pounder 12 cwt
 * QF 4 inch Mk IV
 * BL 4-inch Mk IX
 * QF 4-inch Mk XVI
 * QF 4-inch Mk XIX
 * QF 4.5-inch Mk I – V
 * BL 4.7-inch Mk I and Mk II
 * QF 4.7-inch Mk IX & XII naval gun
 * QF 4.7-inch Mk XI naval gun
 * 3-inch/50-calibre gun
 * 4-inch/50-calibre gun

Submarine armament

 * QF 4-inch naval gun Mk XII and Mk XXII

Armed boats armament



 * QF 3-pounder Hotchkiss
 * QF 6-pdr Class M Mark I with Auto Loader Mk III

Machine guns

 * Lewis gun
 * Vickers .50 machine gun

Autocannons



 * QF 2-pounder Mk I and Mk VIII
 * Oerlikon 20 mm cannon - licensed production of Swiss design
 * Bofors 40 mm gun license production of Swedish design

Anti-aircraft artillery
British made
 * QF 3-inch 20 cwt
 * QF 4.7-inch Mk VIII naval gun

US made obtained through Destroyers-for-bases deal


 * 3-inch/23-calibre

Other

 * Holman Projector
 * Unrotated Projectile

Torpedoes

 * 18-inch torpedoes Mk VIII-XVII
 * 21-inch torpedo Mk II-XI
 * 24.5-inch torpedo - fitted to Nelson-class battleships only

Naval mines



 * Mark XVII contact naval mine

Depth charges



 * Mark VII depth charge
 * Mark VII Heavy
 * Mark VII Airborne DC
 * Mark VIII Airborne DC
 * Mark X, X*
 * Mark XI Airborne DC

Anti-submarine projectile launchers

 * Hedgehog - multiple spigot mortar
 * Squid - three barrelled 12-inch anti-submarine mortar

Naval radar


See List of World War II British naval radar

Boilers

 * Admiralty 3-drum boiler

Small arms

 * Lanchester submachine gun - 9mm Parabellum