United Kingdom / Britain Naval Guns

United Kingdom / Britain
Naval Guns . The White Ensign

Modern Weapons (1980 to Present)

155 mm/52 Future Naval Gun	Type 45 Destroyers
4.5"/55 Mark 8 Mod 0 114 mm/55 Mark 8 Mod 1	Destroyers and Frigates
30 mm/40 mm Bushmaster II (USA)	Type 23 Frigates
30 mm/75 GCM Series 30 mm/75 LS-30B	Type 22 Frigates, Amphibious Assault Ships, smaller warships
30 mm/77 Goalkeeper	Invincible, Type 22 Batch 3 and Type 23
20 mm Phalanx (USA)	Many Warships after 1985
20 mm/85 GAM-BO1	Many Warships after 1985
20 mm/70 Oerlikon	Many Ships 1942 - 1960 Some Auxiliaries 1960 to Present
12.7 mm HMG (USA Browning M2)	Some Ships
7.62 mm GAU-17 (USA)	Some Ships 2005

Historical Weapons

Battleship Main Guns

18"/45 Mark II and other Proposed Guns	Battleship and Battlecruiser Designs 1920 - 1922
18"/40 Mark I	Furious (1917) and Monitors
16.25"/30 Mark I	Benbow and Victoria
16"/45 Marks II, III & IV	Lion Class (1938)
16"/45 Mark I	G3 and Nelson Class
15"/45 Mark II	Proposed for King George V (1940) Class
15"/42 Mark I	Queen Elizabeth, Royal Sovereign (1916), Glorious, Repulse, Hood, Vanguard, Marshal Soult and Roberts Classes
14"/45 Mark VII	King George V (1940) Class
14"/50 Mark VI	Izmail Class (Russian)
14"/45 Marks II, IV and V	Abercrombie (1914) Class
14"/45 Marks I and III	Canada Class (ex-Almirante Latorre)
13.5"/45 Mark VI	Erin (ex-Reshadeih)
13.5"/45 Mark V	Orion, King George V (1912), Iron Duke, Queen Mary, Tiger (1914), Ajax, Conqueror and Benbow Classes
13.5"/30 Marks I, II, III and IV	Middle "Admiral" and Royal Sovereign (1893) Classes
12"/50 Mark XIV	Experimental
12"/45 Mark XIII	Agincourt (ex-Rio de Janeiro)
*12"/50 Marks XI, XI and XII**	St. Vincent, Neptune and Colossus Classes
12"/45 Mark X	Lord Nelson, Dreadnought, Bellerophon, Invincible and Indefatigable Classes
12"/40 Mark IX	Formidible, London, Duncan and King Edward VII Classes
12"/35 Mark VIII	Majestic and Canopus Classes
12"/25 Marks III, IV and V	Early "Admiral" Class
12"/25 Marks I and II	Colossus, Conqueror and Collingwood
10"/45 Mark VI and VII	Swiftsure (1904) Class (ex-Constitution)
10"/32 Marks I, II, III and IV	Victoria, Thunderer, Devastation and Barfleur Classes

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Cruiser / Destroyer Main Guns and Battleship / Cruiser Secondary Guns

9.2"/51 Mark XII	Glatton Class (ex-Bjöergvin)
9.2"/50 Mark XI	Lord Nelson and Minotaur Class
9.2"/47 Mark X	King Edward VII, Drake, Cressy, Duke of Edinburgh and Warrior Classes
9.2"/47 Mark IX	Coastal Defense
9.2"/40 Mark VIII	Powerful Class
9.2"/31.5 Marks III to VII	Imperieuse, Australia, Warspite, Aurora and Blake
9.2"/26 Marks I and II	Early 9.2" Breech Loaders
8"/75 sub-caliber Mark II	Experimental
8"/120 sub-caliber Mark I	Experimental
8"/50 Mark IX and X	Proposed World War II Cruisers
8"/50 Mark VIII	York, Norfolk, London and Kent Classes
8"/26 Marks I, III, V and VII 8"/30 Marks II, IV and VI	Early 8" Breech Loaders
7.5"/45 Mark VI	Hawkins Class
7.5"/50 Marks III & IV	Swiftsure (1904) (ex-Constitution)
7.5"/50 Marks II & V	Warrior, Minotaur and Achilles Classes
7.5"/45 Mark I	Devonshire Class
7"/36 Mark I	Mersey Class
6"/50 QF Mark N5 6"/50 QF Mark V	Tiger (1959) Class
6"/40 QF Marks I, II and III	Pre-dreadnoughts and cruisers built between 1890 and 1905
6"/26 QFC	Converted 6" Breech Loaders
6"/50 BL Mark XXIII	Leander, Perth, Arethusa, Southampton ("Town"), Edinburgh ("Modified Town"), Fiji ("Colony"), Ceylon (Modified "Colony") and Swiftsure Classes
6"/50 BL Mark XXII	Nelson Class
6"/49 BL Mark XVIII	Glatton Class (ex-Bjöergvin)
6"/50 BL Marks XVII and XXI	Canada Class (ex-Almirante Latorre)
6"/50 BL Mark XVI	Erin (ex-Reshadeih)
6"/50 BL Marks XIV and XV	Severn Class (ex-Javary)
6"/50 BL Mark XIII	Agincourt (ex-Rio de Janeiro)
6"/45 BL Marks XII and XX	Queen Elizabeth and Royal Sovereign (1916) Classes plus B, C, D and E Cruiser Classes
6"/50 BL Marks XI and XI*	Last three King Edward VII Class, Duke of Edinburgh, Bristol, Falmouth and Chatham Classes
6"/50 BL Marks IX and X	Coast Defense
6"/45 BL Mark VII, VIII and XXIV	Formidable, London, Duncan, first five King Edward VII Class, Tiger, Barfleur and Iron Duke Capital Ship Classes Cressy, Drake, Monmouth, Hampshire and Challenger Cruiser Classes
6"/26 BL Marks I, II, III, IV, V and VI	Early 6" Breech Loaders
5.5"/50 BL Mark I	Hood, Furious, Birkenhead and Chester
5.25"/50 QF Mark I	King George V (1940), Dido and Vanguard Classes
5.2"/42 QF Mark I	Submarine Cruiser X 1
5.1"/50 QF Mark I 5"/70 QF Mark N1 5"/56 QF Mark N2	Experimental Weapons
5"/38 Mark 12 (USA)	Delhi (as rebuilt), Ameer and Assistance Classes
5"/51 BL Marks VI and VII	Coastal Defense and DAMS
5"/25 BL Marks I, II, III, IV and V	Sloops and Cruisers of the 1880s
4.7"/50 QF Mark XI	L and M Classes
4.7"/45 QF Marks IX and XII	A through I, O, Q through W, Tribal (1937), J, K, N and Abdiel Classes
4.7"/43 QF Mark VII 4.7"/40 QF Marks VIII and X	"G3," "N3," Nelson and Courageous Classes Albatross and Adventure
4.7"/45 QF Mark V	DAMS and DEMS
4.7"/40 QF Marks I, II, III, IV and VI	Pre-dreadnoughts and cruisers of the late 1800s DAMS and DEMS
4.7"/45 BL Marks I and II	Modified V&W Destroyers, Amazon and Ambuscade
4.7"/18 Howitzer	Severn Class (ex-Javary)
4.5"/19 8cwt QF Mark I	MTBs and MGBs 1945 - 1960
4.5"/45 QF Mark V (Marks 6 and 7)	Lion (1945), Malta, Saintes, Modified Battle, Daring (1945), County, Type 12, Type 41 and Type 61AD Classes
4.5"/45 QF Marks I, III and IV (Marks 2, 3, 4 and 5)	Renown, Valiant, Queen Elizabeth, Illustrious, Ark Royal, Scylla, Charybdis, Battle, Savage, Z, Ca, Ch, Co, Cr and Tribal (1950) Classes
4"/33 QF Mark XXIII	"A" and "T" Class Submarines after World War II
4"/40 QF Mark XIX	"Battle" Class and small warships of World War II
4"/45 QF HA Marks XVI, XVII, XVIII and XXI	Queen Elizabeth Class, Royal Sovereign (1916) Class, Hood, Furious, cruisers, destroyers, frigates and sloops 1938 - 1948
4"/40 QF Mark XI	Planned for DAMS of World War I
4"/40 QF Mark XX 4"/50 QF Mark XIV 4"/50 QF Mark XIII 4"/50 QF Mark IX 4"/50 QF Mark VIII 4"/40 QF Mark VII	Experimental and Miscellaneous 4" Guns
4"/40 QF Marks VI and X	Brooke Class
4"/45 QF HA Marks V and XV	Most Capital Ships and Cruisers 1917 - 1938
4"/40 QF Marks IV, XII and XXII	Destroyers and Submarines 1908 - 1945
4"/40 QF Marks I, II and III	Invincible Class, some light cruisers and small warships of World War I
4"/50 Mark 9 (USA)	Lend-Lease Ships
4"/28 QFC	Converted 4" Breech Loaders
4"/45 BL Marks IX and X	Renown, Courageous, "Flower" Classes
4"/40 BL Marks VIII and XI	Destroyers and Submarines prior to World War I
4"/50 BL Mark VII	Belleron, St. Vincent, Neptune, Indefatigable, Colossus, Orion, Lion and King George V (1910) Classes
4" BL Marks I, II, II, IV, V and VI	Early 4" Breech Loaders

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Smaller Caliber and Anti-Aircraft Guns

3"/70 Mark 6	Tiger (1959) Class Canadian Restigouche and Mackenzie Classes
3"/50 Marks 10, 20, 21 and 22	Lend-Lease Ships
12-pdr / 20cwt QF HA Marks I, II, III and IV	Many battleships and cruisers 1915 - 1925 Many small warships 1930 - 1945
12-pdr / 18cwt QF Mark I	Capital ships of the late 1800s
12-pdr / 12cwt QF Marks I, II and V	Destroyers 1890s Many small warships 1915 - 1945
3"/8cwt and 3"/17cwt	Armed Yachts of World War I DEMS of World War II
3"/23.5 Marks 4 and 14	Lend-Lease destroyers and Coast Guard cutters
6-pdr / 10cwt QF Mark I	Coast Defense and old Destroyers during World War II
6-pdr / 7cwt QF Mark IIA	MTBs of World War II
6-pdr / 8cwt QF Marks I and II	Arethusa and early "C" Class cruisers 1914 - 1918 "Flower" Class Corvettes and MTBs 1939 - 1945
40 mm/56.3 Bofors	Many Ships 1942 - 1960
Vickers 3-pdr Marks I and II	Cruisers and Monitors 1900 - 1920
Hotchkiss 3-pdr Marks I and II	Cruisers of the 1890s
2-pdr Mark IX 2-pdr Mark X 2-pdr Mark XI 2-pdr Mark XII 2-pdr Mark XIV	Miscellaneous 2-pdr guns
2-pdr Mark VIII	Most Ships 1930 - 1945
*2-pdr Marks II and IIC**	Many Ships 1915 - 1930
1.5-pdr Mark I	Arethusa (1914) and Undaunted
1-pdr Mark I	Some ships 1890s-1920s
20 mm/70 Oerlikon Marks I and II	Many ships 1940s - 1960s
0.5"/62 MG Mark III	Many Ships 1930s - 1940s
0.303" Maxim MG	Many ships 1890s - 1940s
UP AA	Capital ships 1935 - 1942

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Updated 27 October 2012