QF 13 pounder Mk IV AA gun

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QF 13 pounder Mk IV anti-aircraft gun
Salonika, summer 1916
Type	anti-aircraft gun
Place of origin	United Kingdom
Service history
In service	1915 - 1918
Used by	British Empire
Wars	World War I
Production history
Designer	Elswick Ordnance Company
Manufacturer	Elswick Ordnance Company
Produced	1914
Number built	6
Specifications
Barrel length	Bore 65.92 inches (1.674 m); Total 70.26 inches (1.785 m)[1]
Shell	12.5 pounds (5.67 kg) Shrapnel; later HE
Calibre	3-inch (76.2 mm)
Breech	Nordenfeldt screw
Recoil	hydro-spring
Carriage	high-angle mounting on lorry
Elevation	0° - 85°[1]
Traverse	360°
Muzzle velocity	approx. 1,600 feet per second (488 m/s)[1]

The Ordnance QF 13 pounder Mk IV anti-aircraft gun was an Elswick Ordnance commercial 3 inch 13 pounder gun of which 6 were supplied during World War I. It is unrelated to other British Mks of 13 pounder.

Contents 1 History 2 Combat use 3 Notes 4 References 5 See also 6 Surviving examples

[edit] History

Elswick Ordnance had already developed the gun as a commercial venture and supplied the existing 6 guns to the British government in 1915 when the need for anti-aircraft guns became urgent.^[2] All 6 were eventually sent to the Western Front and then various other theatres. Precise theatres of service are difficult to ascertain due to writers often not differentiating between various Mks of 13 pounder guns.

It is visibly identified by having 2 recoil/recuperator cylinders above the barrel. The cylinder immediately above the barrel is slightly shorter than the barrel, and the top cylinder is about the same length as the barrel. The overall appearance is of a standard 13 pounder with an additional, slightly longer, recuperator cylinder on top.

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[edit] Combat use

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[edit] Notes

1. ^ ^{a b c} Hogg & Thurston 1972, page 63
2. ^ Hogg & Thurston 1972, page 62

[edit] References

• I.V. Hogg & L.F. Thurston, British Artillery Weapons & Ammunition 1914-1918. London:Ian Allan, 1972.
• Brigadier NW Routledge, History of the Royal Regiment of Artillery. Anti-Aircraft Artillery, 1914-55. London: Brassey's, 1994

[edit] See also

• List of artillery#Anti-aircraft guns

[edit] Surviving examples

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British Empire weapons of the First World War

Rifles, side arms and grenades Webley Revolver Mk. I–VI | Lee-Enfield rifle | Enfield revolver Mk I, Mk II Grenade, No 1 Hales | Rifle grenades, 2, 3, 4 Hales | No.s 5, 23, 36 Mills | No. 6 Grenade | No.s 8, 9 Double Cylinder Jam Tin |No. 13 Battye | No. 15 Ball grenade | No. 27 Smoke Grenade | No. 34 Egg grenade | Ross rifle (Canada) Artillery Tank guns QF 6 pounder Hotchkiss | QF 6 pounder 6 cwt Field Artillery RML 2.5 inch Mountain Gun | BL 10 pounder Mountain Gun | BL 2.75 inch Mountain Gun | QF 2.95 inch Mountain Gun | BL 12 pounder 6 cwt | QF 12 pounder 8 cwt | QF 13 pounder | BL 15 pounder | BLC 15 pounder | QF 15 pounder | QF 18 pounder Howitzers, medium, and heavy artillery QF 3.7 inch Mountain Howitzer | QF 4.5 inch Howitzer | QF 4.7 inch Gun | BL 5 inch Howitzer | BL 5.4 inch Howitzer | BL 60 pounder gun | BL 6 inch Gun Mk 7 | BL 6 inch Gun Mk 19 | BL 6 inch 30 cwt howitzer | BL 6 inch 26 cwt howitzer | BL 8 inch Howitzer Mk 1 - 5 | BL 8 inch Howitzer Mk 6 - 8 | BL 9.2 inch Howitzer | BL 12 inch Howitzer | BL 15 inch Howitzer Mortars 3 inch Stokes Mortar | 2 inch Medium Mortar | Livens Projector | Newton 6 inch Mortar | 9.45 inch Heavy Mortar Railway guns BL 9.2 inch Railway Gun | BL 12 inch Railway Gun | BL 12 inch Railway Howitzer | BL 14 inch Railway Gun Anti-aircraft guns QF 1 pounder pom-pom | QF 2 pounder pom-pom | QF 12 pounder 12 cwt | QF 13 pounder 6 cwt | QF 13 pounder Mk IV | QF 13 pounder 9 cwt | QF 3 inch 20 cwt | QF 18 pounder | QF 4 inch Mk V Machine guns Vickers machine gun | Lewis gun | Maxim gun Foreign weapon designs in British Army use Hotchkiss Mark I | Lewis Gun | 75 mm AA gun | QF 15 pounder | 9.45 inch Heavy Mortar