QF 1 pounder pom-pom
From Wikipedia, the free encyclopedia
| QF 1 pdr Mark I & II ("pom-pom") | |
|---|---|
 Mk II dated 1903 at the Imperial War Museum, London |
|
| Type | autocannon |
| Place of origin | United Kingdom |
| Service history | |
| In service | 1890s - 1918 |
| Used by |  South African RepublicBritish Empire  German Empire.svg/22px-Flag_of_Belgium_(civil).svg.png){kind=small} Belgium United States |
| Wars | Second Boer War World War I |
| Production history | |
| Designer | Hiram Maxim |
| Designed | 1890 |
| Manufacturer | Maxim-Nordenfelt Vickers, Sons & Maxim |
| Variants | Mk I Mk II |
| Specifications | |
| Weight | 410 pounds (186.0 kg) (gun & breech) |
| Length | 73.5 inch total |
| Barrel length | 43.5 inches (1,105 mm) (bore) |
|
|
|
| Shell | 37 x 94R. 1 lb (0.45 kg) Common Shell |
| Calibre | 37-millimetre (1.457 in) |
| Barrels | 1 |
| Action | automatic, recoil |
| Muzzle velocity | 1,204 feet per second (367 m/s)[1] |
| Maximum range | 4,500 yards (4,110 m) (Mk I+ on field carriage)[2] |
| Filling weight | 270 grains (17 g) black powder |
The QF 1 pounder universally known as the pom-pom, was an early 37 mm British autocannon.
Contents |
[edit] History
It was originally designed in the late 1880s by Hiram Maxim as an enlarged version of the Maxim machine gun. Its longer range necessitated exploding projectiles to judge range, which in turn dictated the shell weight of 1 lb (in fact 400 grams), as that was the lightest exploding shell allowed under the Declaration of St Petersburg of 1868 and reaffirmed in the Hague convention of 1899.[3]
Early versions were sold under the Maxim-Nordenfelt label, whereas versions in British service (i.e. from 1900) were labelled Vickers, Sons and Maxim (VSM) as Vickers had bought out Maxim-Nordenfelt in 1897. They are all effectively the same gun.
[edit] British service
[edit] Second Boer War
The British government initially rejected the gun but other countries bought it, including the South African Republic (Transvaal) government. In the Second Boer War the British found themselves being fired on with success by the Boers with their 37 mm Maxim-Nordenfelt versions with ammunition made in Germany.
In response, Vickers-Maxim of Britain shipped either 57 or 50[4] guns out to the British Army in South Africa, with the first 3 arriving in time for the Battle of Paardeberg of February 1900.[5] These early Mk I versions were mounted on typical field gun type carriages.
[edit] World War I
In World War I it was used as an early anti-aircraft gun in the home defence of Britain. It was adapted as the Mk I+++ and Mk II on high-angle pedestal mountings and deployed along London docks and on rooftops on key buildings in London, others on mobile motor lorries at key towns in the East and Southeast of England. 25 were employed in August 1914, and 50 in February 1916.[6] The Mk II gun at the top of this page on Naval pedestal mounting was the first to open fire in defence of London during the war.[2] However, the small shell was insufficient to damage the German Zeppelin airships sufficiently to shoot them down.[7]
Nevertheless, Lieutenant O.F.J. Hogg of No. 2 AA Section in III Corps was the first anti-aircraft gunner to shoot down an aircraft, with 75 rounds on 23 September 1914 in France.[8]
The British Army did not employ it as an infantry weapon in the First World War, as its shell was considered too small for use against any objects or fortifications and British doctrine relied on shrapnel fired by 13-pounder and 18-pounder field guns as its primary medium range anti-personnel weapon.
The gun was tried with only limited success mounted on aircraft as the lighter 1-pounder Mk III, and was quickly replaced by the larger QF 1½ pounder and QF 2 pounder naval guns as a light anti-aircraft gun.
[edit] British Ammunition
The British are reported to have initially used some Common pointed shells (semi-armour piercing, with fuze in the shell base) in the Boer War, in addition to the standard Common shell. However, the common pointed shell proved unsatisfactory, with the base fuze frequently working loose and falling out during flight.[9] In 1914 the cast-iron Common shell and tracer were the only available rounds.[10]
 |
 |
|
|
|
[edit] German service
A version was produced in Germany for both Navy and Army.[2]
In World War I it was used as an anti-aircraft gun as the Maxim Flak M14.
 |
Please help improve this section by expanding it. Further information might be found on the talk page or at requests for expansion. |
[edit] Belgian service
The Belgian Army used the gun on a high-angle field carriage mounting.[2]
|
|
Please help improve this section by expanding it. Further information might be found on the talk page or at requests for expansion. |
[edit] United States service
The U.S. Navy adopted the Maxim-Nordenfelt 37mm 1 pounder as 1-pounder Mark 6 before the 1898 Spanish-American war.[11]
|
|
Please help improve this section by expanding it. Further information might be found on the talk page or at requests for expansion. |
[edit] See also
[edit] Notes
- ^ Tony DiGiulian, Britain 1-pdr (0.45 kg) 1.46" (37 mm) Mark 1
- ^ a b c d Hogg & Thurston 1972, Pages 22-3
- ^ Hogg & Thurston 1972, Page 22 state the Hague Convention dictated the 1 lb (0.45 kg) shell; however 400 grams was set as the minimum for exploding shells by Laws of War :Declaration of St. Petersburg; November 29 1868
- ^ ‘The Times History of the War in South Africa’ mentions 57; Headlam ‘The History of the Royal Artillery’ only mentions 50.
- ^ Fiona Barbour, The South African Military History Society Military History Journal - Vol 3 No 1 June 1974. Mystery Shell
- ^ Farndale 1988, Pages 362-363
- ^ Routledge 1988, Page 7-8
- ^ Routledge 1994, Page 5
- ^ Fiona Barbour, The South African Military History Society Military History Journal - Vol 3 No 1 June 1974. Mystery Shell
- ^ Treatise on Ammunition 10th Edition, 1915. War Office, UK
- ^ Tony DiGiulian, United States of America 1-pdr (0.45 kg) 1.46" (37 mm) Marks 1 through 15
[edit] References
- General Sir Martin Farndale, History of the Royal Regiment of Artillery. The Forgotten Fronts and the Home Base, 1914-18. London: Royal Artillery Institution, 1988.
- I.V. Hogg & L.F. Thurston, British Artillery Weapons & Ammunition 1914-1918. London: Ian Allan, 1972.
- Brigadier N.W. Routledge, History of the Royal Regiment of Artillery. Anti-Aircraft Artillery, 1914-55. London: Brassey's, 1994.
[edit] External links
- Anthony G Williams, 37MM AND 40MM GUNS IN BRITISH SERVICE
