|
3.5-Inch Forward Firing Aircraft Rocket
The 3.5-inch Forward Firing Aircraft Rocket, or 3.5-Inch FFAR, was an American rocket developed during World War II to allow aircraft to attack enemy submarines at range. The rocket proved an operational success, and spawned several improved versions for use against surface and land targets. Design and development Following trials by the Royal Air Force of rocket-propelled, air-launched weapons for anti-submarine warfare during 1942 (which resulted in the adoption of the RP-3 by RAF Coastal Command), the United States Navy launched a high-priority project during the summer of 1943 for the development of an anti-submarine rocket of its own.Parsch 2004 The resulting rocket was a simple design with four tail fins for stabilization at the rear, powered by a rocket motor that had been under development by Caltech since 1943. The warhead contained no explosive. The rocket's nose was a solid steel mass, weighing , that punctured the pressure hull of a target submarine through the kine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grumman TBF Avenger
The Grumman TBF Avenger (designated TBM for aircraft manufactured by General Motors) is an American World War II-era torpedo bomber developed initially for the United States Navy and Marine Corps, and eventually used by several air and naval aviation services around the world. The Avenger entered U.S. service in 1942, and first saw action during the Battle of Midway. Despite the loss of five of the six Avengers on its combat debut, it survived in service to become the most effective submarine killer and most widely-used torpedo bomber of World War II, sharing credit for sinking the super-battleships and and being credited for sinking 30 submarines. Greatly modified after the war, it remained in use until the 1960s.Wheeler 1992, p. 53. From 1942-on, production of the Avenger (in fact nearly three quarters of its the total production) was subcontracted to a purposely established division of General Motors: the Eastern Aircraft Division. Design and development The Dougl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kinetic Energy Penetrator
A kinetic energy penetrator (KEP), also known as long-rod penetrator (LRP), is a type of ammunition designed to penetrate vehicle armour using a flechette-like, high- sectional density projectile. Like a bullet or kinetic energy weapon, this type of ammunition does not contain explosive payloads and uses purely kinetic energy to penetrate the target. Modern KEP munitions are typically of the armour-piercing fin-stabilized discarding sabot (APFSDS) type. History Early cannons fired kinetic energy ammunition, initially consisting of heavy balls of worked stone and later of dense metals. From the beginning, combining high muzzle energy with projectile weight and hardness have been the foremost factors in the design of such weapons. Similarly, the foremost purpose of such weapons has generally been to defeat protective shells of armored vehicles or other defensive structures, whether it is stone walls, sailship timbers, or modern tank armour. Kinetic energy ammunition, in its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-submarine Missiles Of The United States
An anti-submarine weapon (ASW) is any one of a number of devices that are intended to act against a submarine and its crew, to destroy (sink) the vessel or reduce its capability as a weapon of war. In its simplest sense, an anti-submarine weapon is usually a projectile, missile or bomb that is optimized to destroy submarines. History Before World War I Prior to about 1890, naval weapons were only used against surface shipping. With the rise of the military submarine after this time, countermeasures were considered for use against them. The first submarine installation of torpedo tubes was in 1885 and the first ship was sunk by a submarine-launched torpedo in 1887. There were only two ways of countering the military submarine initially: ramming them or sinking them with gunfire. However, once they were submerged, they were largely immune until they had to surface again. By the start of the First World War there were nearly 300 submarines in service with another 80 in production. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rockets
There are several different types of rockets. The following articles contain lists of rockets by type: * List of missiles * List of orbital launch systems * List of sounding rockets * List of military rockets * List of rocket stages * List of canceled launch vehicle designs See also * Comparison of orbital launch systems * Comparison of orbital launchers families * Comparison of space station cargo vehicles * Comparison of orbital rocket engines * Comparison of solid-fuelled orbital launch systems * List of space launch system designs * * List of rocket aircraft * Lists of weapons * Model rocket * NATO reporting name NATO uses a system of code names, called reporting names, to denote military aircraft and other equipment used by post-Soviet states, former Warsaw Pact countries, China, and other countries. The system assists military communications by providi ... (has lists of various Soviet missiles) {{DEFAULTSORT:Rockets *Rockets lists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zuni (rocket)
The Zuni 5-inch Folding-Fin Aircraft Rocket (FFAR), or simply Zuni, is a unguided rocket developed by the Hunter Douglas Division of Bridgeport Brass Company and deployed by the United States Armed Forces, and the French Air Force. The rocket was developed for both air-to-air and air-to-ground operations. It can be used to carry various types of warheads, including chaff for countermeasures. It is usually fired from the LAU-10 rocket pod holding four rockets. Development In the early 1950s, U.S. Navy engineers at Naval Ordnance Test Station China Lake began to develop a new 12.7 cm unguided rocket to replace the High Velocity Aircraft Rocket. The Zuni was designed as a modular system, to allow the use of different types of warheads and fuzes. One type of warhead had a proximity fuze, as the rocket was originally intended to be used as an air-to-air rocket. This led to its selection as the basis for the AIM-9 Sidewinder airframe in the early 1950s. The Zuni was approved ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Velocity Aircraft Rocket
The High Velocity Aircraft Rocket, or HVAR, also known by the nickname Holy Moses, was an American unguided rocket developed during World War II to attack targets on the ground from aircraft. It saw extensive use during both World War II and the Korean War. Design and development The HVAR was designed by engineers at Caltech during World War II as an improvement on the 5-Inch Forward Firing Aircraft Rocket (FFAR), which had a diameter warhead but an underpowered diameter rocket motor. The desire for improved accuracy from the flatter trajectory of a faster rocket spurred the rapid development. HVAR had a constant 5-inch diameter for both warhead and rocket motor, increasing propellant from of Ballistite. U.S. Ballistite propellant had a sea level specific impulse of over , compared with about for the British Cordite, German WASAG and Soviet PTP propellants. Hercules Powder Company was the principal U.S. supplier of high performance extruded Ballistite propellants: 51.5% nitr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5-Inch Forward Firing Aircraft Rocket
The five-inch forward-firing aircraft rocket or FFAR was an American rocket developed during World War II for attack from airplanes against ground and ship targets. Operational history The first FFARs were developed by the U.S. Navy and introduced in June 1943. They had a 3.5-inch diameter and a non-explosive warhead, since they were used as an aircraft-launched anti-submarine warfare (ASW) rocket and worked by puncturing the hull. It was accurate enough for use against surface ships and land targets, but these missions required an explosive warhead.Parsch 2004 A five-inch anti-aircraft shell was attached to the 3.5-inch rocket motor, creating the five-inch FFAR, which entered service in December 1943. Performance was limited because of the increased weight, limiting speed to 780 km/h (485 mph).Parsch 2006 The high-velocity aircraft rocket, or HVAR, was developed to fix this flaw. The FFAR was used by the Douglas SBD Dauntless (dive bomber), the Grumman TBF Avenger ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo Bomber
A torpedo bomber is a military aircraft designed primarily to attack ships with aerial torpedoes. Torpedo bombers came into existence just before the World War I, First World War almost as soon as aircraft were built that were capable of carrying the weight of a torpedo, and remained an important aircraft type until they were rendered obsolete by anti-ship missiles. They were an important element in many famous World War II, Second World War battles, notably the United Kingdom, British Battle of Taranto, attack at Taranto, the sinking of the German battleship German battleship Bismarck, ''Bismarck'', the sinking of the British battleship ''HMS Prince of Wales (53), HMS Prince Of Wales'' and the British battlecruiser ''HMS Repulse (1916), HMS Repulse'' and the Japanese attack on Pearl Harbor. Types Torpedo bombers first appeared immediately prior to the First World War. Generally, they carried torpedo, torpedoes specifically designed for air launch, which were smaller and lighte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sweet Spot (economics)
In economics, economic equilibrium is a situation in which the economic forces of supply and demand are balanced, meaning that economic variables will no longer change. Market equilibrium in this case is a condition where a market price is established through competition such that the amount of goods or services sought by buyers is equal to the amount of goods or services produced by sellers. This price is often called the competitive price or market clearing price and will tend not to change unless demand or supply changes, and quantity is called the "competitive quantity" or market clearing quantity. Understanding economic equilibrium An economic equilibrium is a situation when the economic agent cannot change the situation by adopting any strategy. The concept has been borrowed from the physical sciences. Take a system where physical forces are balanced for instance.This economically interpreted means no further change ensues. Properties of equilibrium Three basic propertie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periscope Depth
A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45° angle. This form of periscope, with the addition of two simple lenses, served for observation purposes in the trenches during World War I. Military personnel also use periscopes in some gun turrets and in Armored car (military), armoured vehicles. More complex periscopes using Prism (optics), prisms or advanced Optical fiber, fiber optics instead of mirrors and providing magnification operate on submarines and in various fields of science. The overall design of the classical submarine periscope is very simple: two telescopes pointed into each other. If the two telescopes have different individual magnification, the difference between them causes an overall magnification or reduction. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressure Hull
A submarine hull has two major components, the ''superstructure'' and the ''pressure hull''. The external portion of a submarine’s hull—that part that does not resist sea pressure and is free-flooding—is known as the “superstructure” in American submarine terminology and the “casing” in British submarine terminology. It is sometimes also referred to as the “light hull” or other descriptive terms. The superstructure (''casing'' in British usage) of a submarine is the outer non-watertight, “free-flooding” hull which provides a hydrodynamically efficient shape. The pressure hull is the inner hull of a submarine that resists sea pressure and maintains the submarine’s structural integrity at (operating) depth. Shapes Modern submarines are usually cigar-shaped. This design, already visible on very early submarines, is called a " teardrop hull". It is structurally efficient for withstanding external pressure, and significantly reduces the hydrodynamic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-submarine Rocket
An anti-submarine rocket is an anti-submarine weapon type deployed on surface warships for the purpose of sinking or damaging submarines by small explosive charges. They are similar to anti-submarine mortar but a comparably more modern system. This type of weapon used rockets instead of Mortar (weapon)#Spigot mortar, spigot mortars to deliver the explosive. History From World War I submarines posed a major threat to surface ships. Which necessitated the development of effective anti-submarine weapons. During World War II, The US developed first anti-submarine rocket Mousetrap (weapon), Mousetrap to replace Hedgehog (weapon), Hedgehog anti-submarine mortar. Both had the common characteristic of throwing multiple depth charges ahead of the attacking vessel, while it was still in sonar contact. After World War II several other countries developed anti-submarine rocket. U.S. developed another system named RUR-4 Weapon Alpha. Norway developed Terne ASW, Terne. The Bofors 375 mm anti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
