This article includes a list of general references, but it lacks sufficient corresponding inline citations .(February 2014) |
No. 15 "Ball Grenade" | |
---|---|
Type | Time-fused grenade |
Place of origin | United Kingdom |
Service history | |
In service | 1915 |
Used by | United Kingdom |
Wars | World War I |
Production history | |
Designed | 1915 |
Produced | 1915 |
Specifications | |
Mass | 1 lb 11+1⁄2 oz (780 g) [1] |
Diameter | 3 in (76 mm) diameter [1] |
Filling | Ammonal [1] |
Filling weight | 5+1⁄2 oz (160 g) [1] |
Detonation mechanism | Timed friction fuse |
The No. 15 ball grenade, also called the cricket ball grenade, was a grenade used by the British during World War I.
The No. 15 was a time-fused grenade. It was internally fragmented and incorporated a cast-iron body.
To light the grenade, the user had to remove a covering that was on the fuse, then strike an external Brock matchhead igniter against the fuse.
There were two types of fuses available; the five-second and the nine-second. The former was intended for throwing, while the latter was intended for catapults.
The No. 15 was one of the interim grenades created because of the problems associated with the No. 1 grenade. [2] Unlike the others, the No. 15 had been created specifically for the Middle Eastern theatre of World War I, mostly for the fighting in the Dardanelles. [3]
While crude, the No. 15 did well in the Dardanelles. In addition, it could easily be mass-produced; in September 1915, more than 200,000 No. 15s were created per week. [3]
However, there were a few problems; the explosive charge was too large, which created smaller-than-expected fragmentation when the grenade exploded. In addition, it was considered too large because of its 3-inch (76 mm) circumference. [4] These problems were remedied with the No. 16 "oval grenade".
The No. 15 was first widely used in the Battle of Loos. Tacticians envisioned that the No. 15 would be useful in breaching German defenses and trench clearing. [3] The No. 15 was used because production of the No. 5 "Mills bomb" was running seriously behind planned figures, and not enough of them could be supplied before the start of the Loos campaign. [4]
When the Battle for Loos started, the No. 15 was beset with problems, in particular the wet conditions encountered made the fuse almost useless. [4] It was estimated that approximately 18 out of 20 No. 15s failed to ignite due to inoperative fuses. [3]
On November 20, 1915, the No. 15 and its cousin, the No. 16, were withdrawn from France and were replaced with the No. 5 "Mills bomb". [5]
The No. 16 is essentially an improved version of the No. 15. Instead of a ball shape, it has an oval shape and has less explosive charge. It was planned to completely replace the No. 15, but the defeat at Loos caused both the No. 15 and No. 16 to be withdrawn from service, as they both had the same lighting system. [4]
Technology during World War I (1914–1918) reflected a trend toward industrialism and the application of mass-production methods to weapons and to the technology of warfare in general. This trend began at least fifty years prior to World War I during the American Civil War of 1861–1865, and continued through many smaller conflicts in which soldiers and strategists tested new weapons.
A shell, in a military context, is a projectile whose payload contains an explosive, incendiary, or other chemical filling. Originally it was called a bombshell, but "shell" has come to be unambiguous in a military context. Modern usage sometimes includes large solid kinetic projectiles, which are more properly termed shot. Solid shot may contain a pyrotechnic compound if a tracer or spotting charge is used.
Stielhandgranate is the German term for "stick hand grenade" and generally refers to a prominent series of World War I and World War II-era German stick grenade designs, distinguished by their long wooden handles, pull cord arming and cylindrical warheads. The first models were introduced by the Imperial German Army during World War I and the final design was introduced during World War II by the German Wehrmacht.
A rifle grenade is a grenade that uses a rifle-based launcher to permit a longer effective range than would be possible if the grenade were thrown by hand.
The Grenade, Hand, Anti-Tank, No. 75, also known as the "Hawkins grenade" was a British anti-tank hand grenade used during World War II. It was one of a number of grenades developed for use by the British Army and Home Guard in the aftermath of the Dunkirk evacuation. The grenade first appeared in 1942, and was designed to be more versatile than previous grenades, such as the No. 73 grenade and the sticky bomb.
The Grenade, Hand, No. 1 was the first British hand grenade used in World War I. It was designed in the Royal Laboratory, based on reports and samples of Japanese hand grenades during the Russo-Japanese War provided by General Sir Aylmer Haldane, who was a British observer of that war.
The double cylinder, Nos. 8 and No. 9 hand grenades, also known as the "jam tins", are a type of improvised explosive device used by the British and Commonwealth forces, notably the Australian and New Zealand Army Corps (ANZAC) in World War I. The jam tin, or bully beef tin, was one of many grenades designed by ANZACs in the early part of the First World War in response to a lack of equipment suited to trench warfare.
The "Grenade, Hand, Anti-Tank No. 74", commonly known as the S.T. grenade or simply sticky bomb, was a British hand grenade designed and produced during the Second World War. The grenade was one of a number of ad hoc anti-tank weapons developed for use by the British Army and Home Guard after the loss of many anti-tank guns in France after the Dunkirk evacuation.
The Mk 2 grenade is a fragmentation-type anti-personnel hand grenade introduced by the U.S. armed forces in 1918. It was the standard issue anti-personnel grenade used during World War II, and also saw limited service in later conflicts, including the Korean War and Vietnam War. Replacing the failed Mk 1 grenade of 1917, it was standardized in 1920 as the Mk II, and redesignated the Mk 2 on April 2, 1945.
The Stokes mortar was a British trench mortar designed by Sir Wilfred Stokes KBE that was issued to the British and U.S. armies, as well as the Portuguese Expeditionary Corps, during the latter half of the First World War. The 3-inch trench mortar is a smooth-bore, muzzle-loading weapon for high angles of fire. Although it is called a 3-inch mortar, its bore is actually 3.2 inches or 81 mm.
Fragmentation is the process by which the casing, shot, or other components of an anti-personnel weapon, bomb, barrel bomb, land mine, IED, artillery, mortar, tank gun, or autocannon shell, rocket, missile, grenade, etc. are dispersed and/or shattered by the detonation of the explosive filler.
The 2 inch medium trench mortar, also known as the 2-inch howitzer, and nicknamed the "toffee apple" or "plum pudding" mortar, was a British smooth bore muzzle loading (SBML) medium trench mortar in use in World War I from mid-1915 to mid-1917. The designation "2-inch" refers to the mortar barrel, into which only the 22-inch bomb shaft but not the bomb itself was inserted; the spherical bomb itself was actually 9 inches (230 mm) in diameter and weighed 42 lb (19 kg), hence this weapon is more comparable to a standard mortar of approximately 5-6 inch bore.
In military munitions, a fuze is the part of the device that initiates function. In some applications, such as torpedoes, a fuze may be identified by function as the exploder. The relative complexity of even the earliest fuze designs can be seen in cutaway diagrams.
A grenade is an explosive weapon typically thrown by hand, but can also refer to a shell shot from the muzzle of a rifle or a grenade launcher. A modern hand grenade generally consists of an explosive charge ("filler"), a detonator mechanism, an internal striker to trigger the detonator, and a safety lever secured by a cotter pin. The user removes the safety pin before throwing, and once the grenade leaves the hand the safety lever gets released, allowing the striker to trigger a primer that ignites a fuze, which burns down to the detonator and explodes the main charge.
The No. 6 Grenade was a hand grenade used by the United Kingdom during World War I.
The Hales rifle grenade is the name for several rifle grenades used by British forces during World War I. All of these are based on the No. 3 design.
The West Spring Gun was a bomb-throwing catapult used by British, Canadian and Australian forces during World War I. It was designed to throw a hand grenade in a high trajectory into enemy trenches.
The Garland trench mortar was an improvised mortar used by Australian and British forces at Gallipoli during the Dardanelles Campaign of 1915–16. Developed early in the war by Herbert Garland, a pre-war metallurgist and superintendent of laboratories at the Cairo Citadel, it was the most numerous mortar of the Gallipoli Campaign. A simple, improvised design, the Garland mortar consisted of a smoothbore steel barrel fixed at 45 degrees to a solid wooden base. By means of a powder charge it propelled a variant of the jam tin grenade. Its design meant that the whole weapon had to be turned to change its traverse and raised on a box to increase its range but despite these limitations it was reported to have done "good work" in the front line.
The kleineGranatenwerfer 16 or Gr.W.16(Small Grenade Launcher Model 1916) in English, was an infantry mortar used by the Central Powers during the First World War. It was designed by a Hungarian priest named Father Vécer and was first used by the Austro-Hungarian Army in 1915. In Austro-Hungarian service, they received the nickname "Priesterwerfers". In 1916 Germany began producing a modified version under license for the Imperial German Army.
Frederick Marten Hale was a British explosives engineer and inventor. After education at the Devon County School and in Brussels, Belgium, Hale worked in hydraulic and fire engineering. He became involved in the design and manufacture of explosives from 1895 and rose to positions at the Cotton Powder Company and the Roburite & Ammonal company. Hale saw the successful use of hand grenades in the 1904–05 Russo-Japanese War and designed his own grenade in 1906. This was rejected by the War Office but during the 1914–1918 First World War it was used by the British Army as the No. 2 grenade.