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Mk11 Mark-91-pic1
Mark XI or Mark 11 often refers to the 11th version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk." Mark XI or Mark 11 can specifically refer to: In military and weaponry * Mark 11 torpedo (1926), American surface combatant torpedo * Mark XI torpedo (1934), British aircraft-delivered torpedo * Hedgehog Mark 11, variant of the Hedgehog, a British anti-submarine spigot mortar weapon * Supermarine Spitfire Mk XI (1942-1944), variant of the Supermarine Spitfire, a British photo reconnaissance aircraft * Bristol Beaufighter Mk XIC, variant of the Bristol Beaufighter, a British Coastal Command long range heavy fighter * Mark 11 missile launcher, a naval based missile launcher * Mark 11 nuclear bomb (1956-1960), an American nuclear bomb * United States Navy Mk 11 Mod 0 Sniper Weapon System, based on the SR-25 Other uses * Mark 11 Mark 11 is the eleventh chapter of the Gospel of Mark in the New Testament of the Chr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark 11 Torpedo
The Mark 11 torpedo was the first American torpedo to be designed within the United States Navy without collaboration from industry. It was developed by the Washington Navy Yard in Washington, D.C., and the Naval Torpedo Station in Newport, Rhode Island. The Mark 11 torpedo was also the first to feature a three-speed setting capability while tube-loaded: high at 46 knots, medium at 34 knots and low at 27 knots. Due to stability problems it was supplemented by the Mark 12 torpedo within two years, which had a 44-knot high speed setting. See also *American 21 inch torpedo There have been a number of 21-inch torpedoes in service with the United States. These have been used on ships and submarines of the U.S. Navy. American 21-inch torpedoes are in diameter. Ship classes that carried 21-inch torpedoes include: * '' ... References Torpedoes of the United States World War II naval weapons {{Missile-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British 21-inch Torpedo
There have been several British 21-inch (533 mm) torpedoes used by the Royal Navy since their first development just before the First World War. Torpedoes of 21 inch calibre were the largest torpedoes in common use in the RN. They were used by surface ships and submarines rather than aircraft, which used smaller British 18-inch torpedo, 18-inch torpedoes. Mark I The first British 21-inch torpedo came in two lengths, "Short" at , and "Long" at . The explosive charge was of gun cotton increased later to . Mark II The Mark II, chiefly used by destroyers, entered service in 1914. Apart from some older British ships, it was used with the old US (destroyers-for-bases deal) Town-class destroyers provided to the UK during the early part of the Second World War. The running speed was reduced from (over 3,000 yards) for better reliability. The Mark II*, an improved Mark II, was used by battleships and battlecruisers. A wet heater design, it could run for at . Mark IV F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedgehog (weapon)
The Hedgehog (also known as an ''Anti-Submarine Projector'') was a forward-throwing anti-submarine weapon that was used primarily during the Second World War. The device, which was developed by the Royal Navy, fired up to 24 spigot mortars ahead of a ship when attacking a U-boat. It was deployed on convoy escort warships such as destroyers and corvettes to supplement the depth charges. As the mortar projectiles employed contact fuzes rather than time or barometric (depth) fuzes, detonation occurred directly against a hard surface such as the hull of a submarine making it more deadly than depth charges, which relied on damage caused by hydrostatic shockwaves. During WWII out of 5,174 British depth charge attacks there were 85.5 kills, a ratio of 60.5 to 1. In comparison, the Hedgehog made 268 attacks for 47 kills, a ratio of 5.7 to 1. Development The "Hedgehog", so named because the empty rows of its launcher spigots resembled the spines on the back of a hedgehog, was a repla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supermarine Spitfire (late Merlin-powered Variants)
The British Supermarine Spitfire was facing several challenges by mid-1942. The debut of the formidable Focke-Wulf Fw 190 in late 1941 had caused problems for RAF fighter squadrons flying the latest Spitfire Mk Vb. Rolls-Royce engineers were already working on a new version of the Merlin incorporating a two-stage supercharger; the combination of the improved Merlin and the Spitfire Mk Vc airframe in a "stop-gap" design allowed the RAF to combat the Fw 190 on equal terms. In a second stream of development Supermarine was working on an improved, reinforced, Spitfire airframe which incorporated several new features and was designed for the Merlin 60 and 70 series engines. This new airframe later formed the basis for the Rolls-Royce Griffon powered Spitfires. This article presents a history of the Spitfire powered by two-stage engine variants and also describes some of the "drawing board" projects and experimental Spitfires. The Griffon powered variants are described in a separa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol Beaufighter
The Bristol Type 156 Beaufighter (often called the Beau) is a British multi-role aircraft developed during the Second World War by the Bristol Aeroplane Company. It was originally conceived as a heavy fighter variant of the Bristol Beaufort torpedo bomber. The Beaufighter proved to be an effective night fighter, which came into service with the Royal Air Force (RAF) during the Battle of Britain, its large size allowing it to carry heavy armament and early airborne interception radar without major performance penalties. The Beaufighter was used in many roles; receiving the nicknames ''Rockbeau'' for its use as a rocket-armed ground attack aircraft and ''Torbeau'' as a torpedo bomber against Axis shipping, in which it replaced the Beaufort. In later operations, it served mainly as a maritime strike/ground attack aircraft, RAF Coastal Command having operated the largest number of Beaufighters amongst all other commands at one point. The Royal Australian Air Force (RAAF) also m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark 11 Missile Launcher
The Mark 11 guided missile launching system (GMLS) is a twin-arm missile launcher designed for use on frigates and other military vessels. The launcher could use the RIM-24 Tartar or RIM-66 Standard MR missile and was used on s and the first thirteen s. The destroyers had one launcher at the rear of the ship while the cruisers had 2 launchers mounted amidships on either side of the ship. New Threat Upgrade added the ability to launch RGM-84 Harpoon anti-ship missiles. The single armed Mark 13 missile launcher was similar in size and footprint and was used in the later Charles F. Adams class destroyers instead of the Mark 11. Usage * * Gallery File:USS Lawrence (DDG 4) launching a RGM-84A Harpoon.jpg, An RGM-84A Harpoon antiship cruise missile is fired from a Mark 11 launcher aboard the guided missile destroyer See also * List of United States Navy Guided Missile Launching Systems References External links GMM 3 and 2 - GMLS Naval weapons of the United States Naval ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark 11 Nuclear Bomb
The Mark 11 nuclear bomb was an American nuclear bomb developed from the earlier Mark 8 nuclear bomb in the mid-1950s. Like the Mark 8, the Mark 11 was an earth-penetrating weapon, also known as a nuclear bunker buster bomb. Description As with the Mark 8, the Mark 11 was a gun-type nuclear bomb (see also: gun-type assembly weapon). It used a fixed large target assembly of highly enriched uranium or HEU, a gun-like barrel, and a powder charge and uranium bullet or projectile fired up the barrel into the target. The Mark 11 was first produced in 1956, and was in service until 1960. A total of 40 were produced, replacing but not expanding the quantity of Mark 8 bombs. It was in diameter and long, with a weight of . Yield was reportedly the same as the Mark 8, 25 to 30 kilotons. The two bombs reportedly used the same basic fissile weapon design, but the Mark 11 had a much more modern external casing designed to penetrate further and more reliably into the ground. The M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SR-25
The SR-25 (Stoner Rifle-25) is a designated marksman rifle and semi-automatic sniper rifle designed by Eugene Stoner and manufactured by Knight's Armament Company. The SR-25 uses a rotating bolt and a direct impingement gas system. It is loosely based on Stoner's AR-10, rebuilt in its original 7.62×51mm NATO caliber. Up to 60% of parts of the SR-25 are interchangeable with the AR-15 and M16—everything but the upper and lower receivers, the hammer, the barrel assembly and the bolt carrier group. SR-25 barrels were originally manufactured by Remington Arms with its 5R (five grooves, right twist) rifling, with twist 1:11.25. The heavy barrel is free-floating, so handguards are attached to the front of the receiver and do not touch the barrel. History In the late 1950s, Eugene Stoner designed the AR-10 battle rifle to equip U.S. troops. It was accurate for an auto-loading rifle, but it lost the competition to the M14 rifle. The patent rights for the AR-10 and the AR-15 were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark 11
Mark 11 is the eleventh chapter of the Gospel of Mark in the New Testament of the Christian Bible, beginning Jesus' final week before His death as He arrives in Jerusalem for the coming Passover. It contains the stories of Jesus' entry into Jerusalem, His cursing of the fig tree, His conflict with the Temple money changers, and His argument with the chief priests and elders about his authority. Text The original text was written in Koine Greek. This chapter is divided into 33 verses. Textual witnesses Some early manuscripts containing the text of this chapter are: *Codex Vaticanus (325-350; complete) *Codex Sinaiticus (330-360; complete) *Codex Bezae (~400; complete) *Codex Alexandrinus (400-440; complete) *Codex Ephraemi Rescriptus (~450; complete) Timescale Verses 1-11 reflect the events commemorated by Christians on Palm Sunday. Verses 12-19 take place "the next day", and end that evening. Verses 20-33 commence early ( gr, πρωῒ, ''prói''), the following morning. Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
