Ordnance BL 10-pounder mountain gun | |
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Type | Mountain gun |
Place of origin | United Kingdom |
Service history | |
In service | 1901–1918 |
Used by | United Kingdom of Great Britain and Ireland British Raj |
Wars | World War I |
Production history | |
Manufacturer | Woolwich Arsenal, Elswick Ordnance Company (UK) |
Variants | MK I |
Specifications | |
Mass | Breech: 207 lb (93.9 kg) Barrel: 197 lb (89.36 kg) Total: 874 lb (396.4 kg) [1] |
Barrel length | Bore: 72.4 in (1.8 m) Total: 76.4 in (1.9 m) [1] |
Shell | Shrapnel, Common shell [2] 10 pounds (4.54 kg) |
Calibre | 2.75 inches (69.8 mm) |
Action | Breech Loading with separate shell and charge |
Recoil | None |
Carriage | Wheeled, box trail |
Elevation | -15° – 25° [1] |
Traverse | 0° |
Muzzle velocity | 1,289 ft/s (393 m/s) [1] |
Effective firing range | 3,700 yards (3,383 m) (Time Fuze) 6,000 yards (5,486 m) (Percussion fuze) [1] |
The Ordnance BL 10 pounder mountain gun [3] was developed as a BL successor to the RML 2.5 inch screw gun which was outclassed in the Second Boer War.
This breech-loading gun was an improvement on the 2.5 inches (63.5 mm) muzzle-loading screw gun but still lacked any recoil absorber or recuperator mechanism. It could be dismantled into 4 loads of approximately 200 pounds (90.7 kg) for transport, typically by mule.
It was originally manufactured without a Gun shield, but these were made and fitted locally during World War I, at Nairobi in 1914 for the East Africa campaign, and at Suez in 1915 for the Gallipoli campaign. [4]
It was eventually replaced by the BL 2.75 inch Mountain Gun from 1914 onwards but was still the main mountain gun in service when World War I began.
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British mountain guns were operated by men of the Royal Garrison Artillery.
Guns of the 26th Mountain Battery of the Indian Army were the first British Empire artillery to open fire in the Middle East in World War I, on 26 January 1915, Qantara (Kantara), against the Turkish advance towards the Suez Canal. [4]
The gun was used notably in the Gallipoli Campaign in 1915 by two Indian Army units, the 21st (Kohat) Mountain Battery (Frontier Force) and 26th (Jacobs) Mountain Battery of the 7th Indian Mountain Brigade with 6 guns each at Anzac, and by the Scottish Territorial Force unit, the 4th Highland (Mountain) Brigade, Royal Garrison Artillery (Argyllshire and Ross & Cromarty Batteries with 4 guns each) at Helles and then Suvla. The 21st Battery was granted the title "Royal" in 1922 for its actions including Gallipoli, unique for an artillery battery. [4]
There is some evidence that the Turkish defenders on Gallipoli were also using the 10 pounder, bought prewar from New Zealand, as the ANZACs discovered 10 pounder shell bodies fired at them made in India which were not from their own guns. [5] [6]
In the East Africa campaign, the following Indian batteries used the 10 pounder with distinction in constant action :-
The gun was also used in the Palestine campaign.
The Ordnance QF 18-pounder, or simply 18-pounder gun, was the standard British Empire field gun of the First World War-era. It formed the backbone of the Royal Field Artillery during the war, and was produced in large numbers. It was used by British Forces in all the main theatres, and by British troops in Russia in 1919. Its calibre (84 mm) and shell weight were greater than those of the equivalent field guns in French (75 mm) and German (77 mm) service. It was generally horse drawn until mechanisation in the 1930s.
The Ordnance BL 60-pounder was a British 5 inch (127 mm) heavy field gun designed in 1903–05 to provide a new capability that had been partially met by the interim QF 4.7 inch Gun. It was designed for both horse draft and mechanical traction and served throughout the First World War in the main theatres. It remained in service with British and Commonwealth forces in the inter-war period and in frontline service with British and South African batteries until 1942 being superseded by the BL 4.5 inch Medium Gun.
Ordnance, QF 3.7-inch howitzer is a mountain gun, used by British and Commonwealth armies in the First and Second World Wars, and between the wars.
The Ordnance BL 6 inch 26cwt howitzer was a British howitzer used during World War I and World War II. The qualifier "26cwt" refers to the weight of the barrel and breech together which weighed 26 long hundredweight (1.3 t).
The Ordnance QF 13-pounder (quick-firing) field gun was the standard equipment of the British and Canadian Royal Horse Artillery at the outbreak of World War I.
The Ordnance QF 4.5-inch howitzer was the standard British Empire field howitzer of the First World War era. It replaced the BL 5-inch howitzer and equipped some 25% of the field artillery. It entered service in 1910 and remained in service through the interwar period and was last used in the field by British forces in early 1942. It was generally horse drawn until mechanisation in the 1930s.
The Ordnance BL 6 inch 30cwt howitzer was a British medium howitzer used in the Second Boer War and early in World War I. The qualifier "30cwt" refers to the weight of the barrel and breech together which weighed 30 hundredweight (cwt) : 30 × 112 lb = 3,360 lb. It can be identified by the slightly flared shape of the muzzle and large recuperator springs below the barrel.
The QF 2.95-inch mountain gun was the designation given by the British to a Vickers 75 mm calibre gun. It was originally produced for the Egyptian Army. It was taken into British service in the late 19th century to provide the 'movable armament' at some coaling stations. Also known as "The Millimetre Gun", it was used by the West African Frontier Force in several theatres in Africa during World War I. It was also used by the United States and the Commonwealth of the Philippines.
The QF 4.7-inch Gun Mks I, II, III, and IV were a family of British quick-firing 4.724-inch (120 mm) naval and coast defence guns of the late 1880s and 1890s that served with the navies of various countries. They were also mounted on various wheeled carriages to provide the British Army with a long range gun. They all had a barrel of 40 calibres length.
The Ordnance BL 5-inch howitzer was initially introduced to provide the Royal Field Artillery with continuing explosive shell capability following the decision to concentrate on shrapnel for field guns in the 1890s.
The Ordnance BLC 15-pounder gun was a modernised version of the obsolete BL 15-pounder 7 cwt gun, incorporating a recoil and recuperator mechanism above the barrel and a modified quicker-opening breech. It was developed to provide Territorial Force artillery brigades with a reasonably modern field gun without incurring the expense of equipping them with the newer 18-pounder. It is the gun that writers usually mean by "15-pounder gun" in World War I, but can be confused with the earlier Ordnance QF 15-pounder Ehrhardt or Ordnance BL 15-pounder, both of which fired the same shell.
The Ordnance QF 15-pounder gun, commonly referred to as the Ehrhardt, was a modern German field gun purchased by Britain in 1900 as a stopgap measure to upgrade its field artillery to modern QF standards, while it developed its own alternative. This was precipitated by the experience of the British Army in South Africa during the Second Boer War, where its standard field gun, the BL 15-pounder, was out-performed by modern French and German field guns deployed by the Boers. It bore no relation to the BL 15-pounder or BLC 15-pounder, two other guns in British service at the time, other than a common shell.
The Ordnance BL 15-pounder, otherwise known as the 15-pounder 7 cwt, was the British Army's field gun in the Second Boer War and some remained in limited use in minor theatres of World War I. It fired a shell of 3-inch diameter with a maximum weight of 15 pounds (6.8 kg), hence its name which differentiated it from its predecessor '12-pounder' 3-inch gun which fired shells weighing only 12.5 pounds (5.7 kg).
The Ordnance QF 12-pounder 8 cwt was a Royal Navy "landing gun" intended for navy use ashore. "8 cwt" refers to the weight of the gun and breech, approximately 8 cwt = 8 x 112 lb (51 kg) = 896 lb (406 kg). This was how the British often differentiated between guns of the same calibre or weight of shell. This gun had a short barrel and was of relatively low power compared to the 12 pounders of 12 and 18 long cwt, although it fired the same shells.
The Ordnance RML 2.5-inch mountain gun was a British rifled muzzle-loading mountain gun of the late 19th century designed to be broken down into four loads for carrying by man or mule. It was primarily used by the Indian Army.
The Ordnance BL 12-pounder 6 cwt was a lighter version of the British 12-pounder 7 cwt gun, used by the Royal Horse Artillery in the late 19th and early 20th centuries.
The Ordnance BL 5.4-inch howitzer was a version of the British 5-inch howitzer designed for British Indian Army use, especially on the Northwest Frontier.
The QF 12 pounder 18 cwt gun (Quick-Firing) was a 3-inch high-velocity naval gun used to equip larger British warships such as battleships for defence against torpedo boats. 18 cwt referred to the weight of gun and breech, to differentiate the gun from others that also fired the "12 pound" shell.
The QF 4-inch gun Mks I, II, III were early British QF (quick-firing) naval guns originating in 1895. They all had barrels of 40 calibres length.
The Nottinghamshire Royal Horse Artillery was a Territorial Force Royal Horse Artillery battery that was formed in Nottinghamshire in 1908. It saw active service during the First World War in the Middle East – in the Senussi Campaign and the Sinai and Palestine Campaign – from 1915 to 1918. A second line battery, 2/1st Nottinghamshire RHA, served in the Mesopotamian Campaign in 1917 and 1918 as a Field Artillery battery. Post-war, it was reconstituted as a Royal Field Artillery battery.