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).
BL 6 inch 26 cwt Howitzer | |
---|---|
Type | Medium howitzer |
Place of origin | United Kingdom |
Service history | |
In service | 1916 to 1945 |
Used by | United Kingdom Canada Union of South Africa Australia New Zealand Italy Netherlands Belgium Greece Russian Empire Portugal Estonian Republic |
Wars | World War I World War II |
Production history | |
Designer | Vickers |
Designed | 1915 |
Manufacturer | Vickers, Beardmore, Coventry Ordnance Works, Woolwich Ordnance Factory, Midvale Steel Company |
Produced | 1915 - ? |
No. built | 3,633 |
Specifications | |
Mass | Barrel: 2,856 lb (1,295 kg) Total: 8,142 lb (3,693 kg)[1] |
Length | 21 ft 7 in (6.58 m) |
Barrel length | Bore: 6 ft 8 in (2.03 m) Total: 7 ft 3 in (2.21 m) L/13.3 |
Width | 6 ft 10 in (2.08 m) |
Crew | 10 |
Shell | Gas Incendiary High explosive |
Shell weight | WWI: 100 pounds (45.4 kg) WWII: 86 pounds (39.0 kg) |
Calibre | 6 in (152.4 mm) |
Breech | Welin screw |
Recoil | Hydro-pneumatic, variable |
Carriage | Box trail |
Elevation | 0° to +45° |
Traverse | 4° L & R |
Rate of fire | Max: 2 rpm |
Muzzle velocity | Max: 1,400 ft/s (430 m/s) |
Maximum firing range | WWI 100 pounds (45.4 kg) shell : 9,500 yards (8,700 m) WWII 86 pounds (39.0 kg) shell : 11,400 yards (10,400 m)[2] |
Sights | Calibrating (1930s) & reciprocating |
It was developed to replace the obsolescent 6 inch 25 cwt and 6 inch 30 cwt howitzers which were outclassed by German artillery such as the 15 cm schwere Feldhaubitze 13. Design began in January 1915, the first proof-firing occurred on 30 July 1915 and it entered service in late 1915.[1] Its combination of firepower, range and mobility (for its day) made it one of the British Empire's most important weapons in World War I.
It was originally towed by horses but from 1916 onwards was commonly towed by the FWD 4 wheel drive 3 ton lorry as heavy field artillery. The wooden spoked wheels could be fitted with "girdles" for work in mud or sand to prevent them sinking. Towards the end of the war solid rubber tyres were fitted over the iron tyres on the wheel rims, giving the rims a heavier appearance. It fired 22.4 million rounds on the Western Front.[3]
During the interwar period the carriage had its wooden spoked wheels replaced with modern steel wheels and pneumatic tyres. During World War II, its use was restricted after 1942 when the replacement BL 5.5 inch Medium Gun came into use but it was reintroduced in Burma due to a number of premature detonations in 5.5-inch (140 mm) guns. It was declared obsolete with the end of the war in 1945.
Captured examples received the designation FH-412(e) in German use.
These guns are being restored by the Gunner's Association of South Africa
Projectiles used in World War I weighed 100 pounds (45.4 kg). A lighter 86 pounds (39.0 kg) long-range projectile was introduced in November 1918, too late to see service in the war [3]