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AUM-N-2 Petrel

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In 1963, the U.S. Department of Defense established a designation system for rockets and guided missiles jointly used by all the United States armed services. It superseded the separate designation systems the Air Force and Navy had for designating US guided missiles and drones, but also a short-lived interim USAF system for guided missiles and rockets.

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42-466: The AUM-N-2 Petrel , also known as Kingfisher C and AUM-2 , was an air-to-surface missile produced as part of Project Kingfisher for the United States Navy . Intended for use against enemy surface ships and surfaced submarines, giving aircraft the ability to deliver aerial torpedoes from outside the range of defensive armament, it saw brief operational service in the late 1950s. The project

84-613: A fuel and oxidizer mixed in select proportions with the grain size and burn chamber determining the rate and time of burn. Larger missiles might use liquid-propellant rockets where propulsion is provided by a single or combination of liquid fuels. A hybrid system uses solid rocket fuel with a liquid oxidizer. Jet engines are generally used in cruise missiles , most commonly of the turbojet type, because of their relative simplicity and low frontal area while turbofans and ramjets can also be theoretically used. Long-range missiles have multiple engine stages and might use similar type or

126-506: A show of force . ASATs have also been used to remove decommissioned satellites. ASAT roles include defensive measures against an adversary's space-based and nuclear weapons, a force multiplier for a nuclear first strike , a countermeasure against an adversary's anti-ballistic missile defense (ABM), an asymmetric counter to a technologically superior adversary, and a counter-value weapon. 1962 United States Tri-Service missile and drone designation system On 11 December 1962,

168-423: A ballistic trajectory. Most anti-tank and anti-ship missiles are part of surface-to-surface missile systems. An anti-satellite weapon (ASAT) is a space weapon designed to incapacitate or destroy satellites for strategic or tactical purposes. Although no ASAT system has yet been utilized in warfare , a few countries have successfully shot down their own satellites to demonstrate their ASAT capabilities in

210-675: A higher standoff distance engaging targets from far away and out of range of low range air defenses. A surface-to-air missile (SAM) is a missile designed to be launched from the ground to destroy aircraft , other missiles or flying objects. It is a type of anti-aircraft system and missiles have replaced most other forms of anti-aircraft weapons due to the increased range and accuracy. Anti-aircraft guns are being used only for specialized close-in firing roles. Missiles can be mounted in clusters on vehicles or towed on trailers and can be hand operated by infantry. SAMs frequently use solid-propellants and may be guided by radar or infrared sensors or by

252-689: A human operator may operate it manually or a support or launch system will transmit commands by using either optic fiber or radio to guide the missile. The flight system uses the data from the targeting or guidance system to maneuver the missile in flight which might be accomplished using vectored thrust of engines or aerodynamic maneuvering using flight control surfaces such as wings , fins and canards . Missiles are powered by propellants igniting to produce thrust and might employ types of rocket or jet engines . Rockets might be fueled by solid-propellants which are comparatively easier to maintain and enables faster deployment. These propellants contain

294-565: A human operator using optical tracking. A surface-to-surface missile (SSM) is a missile designed to be launched from the ground or the sea and strike targets on land. They may be fired from hand-held or vehicle mounted devices, from fixed installations or from a ship. They are often powered by a rocket engine or sometimes fired by an explosive charge, since the launching platform is typically stationary or moving slowly. They usually have fins and/or wings for lift and stability, although hyper-velocity or short-ranged missiles may use body lift or fly

336-415: A limited strike in a smaller area and might carry conventional or nuclear warheads. Strategic missiles are long-range weapons used to target beyond the immediate vicinity and are mostly designed to carry nuclear warheads though other warheads can also be fitted. Strategic weapons are often classified into cruise and ballistic missiles . Ballistic missiles are powered by rockets during launch and follow

378-437: A mix of engine types. Some missiles may have additional propulsion from another source at launch such as a catapult , cannon or tank gun . Missiles have one or more explosive warheads , although other weapon types may also be used. The warheads of a missile provide its primary destructive power which might cause secondary destruction due to the kinetic energy of the weapon and unused fuel. Warheads are most commonly of

420-409: A single soldier, to larger tripod-mounted or vehicle and aircraft mounted missile systems. Earlier man-portable anti-tank weapons like anti-tank rifles and magnetic anti-tank mines had a short range but sophisticated antitank missiles can be directed to a longer target by several different guidance systems, including laser guiding, television camera, or wire guiding . An air-to-air missile (AAM)

462-516: A trajectory that arches upwards before descending to reach its intended target while cruise missiles are continuously powered by jet engines and travel at a flatter trajectory. A ballistic missile is powered by single or multiple rockets in stages initially before following an unpowered trajectory that arches upwards before descending to reach its intended target. It can carry both nuclear and conventional warheads. A ballistic missile might reach supersonic or hypersonic speed and often travel out of

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504-399: Is a standoff anti-submarine weapon variant of anti-ship missiles used to deliver an explosive warhead aimed directly at a submarine , a depth charge , or a homing torpedo . An anti-tank guided missile (ATGM) is a guided missile primarily designed to hit and destroy heavily armored military vehicles . ATGMs range in size from shoulder-launched weapons, which can be transported by

546-591: Is a critical factor for its effectiveness. The missile guidance system accomplishes this by four steps: tracking the target, computing the directions using tracking information, directing the computed inputs to steering control and steering the missile by directing inputs to motors or flight control surfaces. The guidance system consists of three sections: launch, mid-course and terminal with same or different systems employed across sections. The guidance and homing systems are generally classified broadly into active , semi-active and passive . In active homing systems,

588-523: Is a missile fired from a fighter aircraft for the purpose of destroying another aircraft. AAMs are typically powered by one or more rocket motors , usually solid fueled but sometimes liquid fueled . A radar or heat emission based homing system is generally used and sometimes can use a combination. Short range missiles used to engage opposing aircraft at ranges of less than 16 km often use infrared guidance while long range missiles mostly rely upon radar guidance. An air-to-surface missile (ASM)

630-496: Is a missile fired from an attack aircraft , strike fighter or an attack helicopter for the purpose of destroying land based targets. Missiles are typically guided and unguided glide bombs not considered missiles. The most common propulsion systems are rocket motor for short range and jet engines for long-range but ramjets are also used. Missile guidance is typically via laser , infrared homing, optical or satellite . Air-to-surface missiles for ground attack by aircraft provide

672-954: Is an airborne ranged weapon capable of self-propelled flight aided usually by a propellant , jet engine or rocket motor . Historically, 'missile' referred to any projectile that is thrown, shot or propelled towards a target; this usage is still recognized today with any unguided jet- or rocket-propelled weapons generally described as rocket artillery . Airborne explosive devices without propulsion are referred to as shells if fired by an artillery piece and bombs if dropped by an aircraft. Missiles are also generally guided towards specific targets termed as guided missiles or guided rockets . Missile systems usually have five system components: targeting , guidance system , flight system, engine , and warhead . Missiles are primarily classified into different types based on firing source and target such as surface-to-surface , air-to-surface , surface-to-air and air-to-air missiles . Rockets were

714-541: Is based in a set of letters called the Mission Design Sequence. The sequence indicates the following: Examples of guided missile designators are as follows: The design or project number follows the basic designator. In turn, the number may be followed by consecutive letters, representing modifications. In addition, most guided missiles have names, such as Harpoon , Tomahawk , Sea Sparrow , etc. These names are retained regardless of subsequent modifications to

756-567: Is often self-guided. It flies at lower speeds (often subsonic or supersonic ) and close to the surface of the Earth, which expends more fuel but makes it difficult to detect. Missiles might be also be classified basis launch platform and target into surface-to-air , surface-to-surface , air-to-air , air-to-surface , anti-ship and anti-tank . An anti-ship missile (AShM) is designed for use against large boats and ships such as destroyers and aircraft carriers . Most anti-ship missiles are of

798-501: The Earth's atmosphere before re-entry. It usually has three stages of flight: Ballistic missiles are categorized based on range as: A cruise missile is a guided missile that remains in the atmosphere and flies the major portion of its flight at a constant speed. It is designed to deliver a large warhead over long distances with high precision and are propelled by jet engines. A cruise missile can be launched from multiple platforms and

840-534: The Napoleonic Wars . In the early 20th century, American Robert Goddard and German Hermann Oberth developed early rockets propelled by jet engines. In the 1920s, Soviet Union developed solid fuel rockets at the Gas Dynamics Laboratory . Later, the first missiles to be used operationally were a series of rocket based missiles developed by Nazi Germany during World War II including

882-407: The U.S. Navy Bureau of Ordnance (BuOrd) began Project Kingfisher , intending to develop a series of standoff torpedo weapons. The "Kingfisher C", later designated AUM-2 and then as AUM-N-2 (for 'Air-to-Underwater Missile'), was designed as an air-launched jet-powered missile which carried a torpedo as its payload. Various different design options were considered for this missile; the final choice

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924-508: The V-1 flying bomb and V-2 rocket which used mechanical autopilot to keep the missile flying along a pre-chosen route. Less well known were a series of anti-ship and anti-aircraft missiles, typically based on a simple radio control ( command guidance ) system directed by the operator. However, these early systems in World War ;II were only built in small numbers. After World War II,

966-540: The high explosive type, often employing shaped charges to exploit the accuracy of a guided weapon to destroy hardened targets. Warhead might carry conventional , incendiary , nuclear , chemical , biological or radiological weapons . Missiles can be classified into categories by various parameters such as type, launch platform and target, range, propulsion and guidance system. Missiles are generally categorized into strategic or tactical missile systems. Tactical missile systems are short-range systems used to carry out

1008-561: The sea skimming variety, and many use a combination of inertial guidance and active radar homing . A large number of other anti-ship missiles use infrared homing to follow the heat that is emitted by a ship; it is also possible for anti-ship missiles to be guided by radio command all the way. Many anti-ship missiles can be launched from a variety of weapons systems including surface warships , submarines , fighter aircraft , maritime patrol aircraft , helicopters , shore batteries , land vehicles and by infantry . Anti-submarine missile

1050-724: The Atlantic coast and VP(HM)-10 on the Pacific coast began working up with P2V-6M Neptune carrier aircraft; however in 1957 responsibility for the Petrel was transferred to the United States Navy Reserve units, with VP-834 being assigned as the Petrel's operational squadron in the USNR. By the start of 1959 the phaseout of the Petrel had begun, and on 29 January 1959 the Petrel program was cancelled entirely, no longer being considered necessary in

1092-598: The Mark 21 Mod 2 as its payload. Development was transferred to the Guided Missiles Division of Fairchild Aircraft in 1954, with the missile being declared operational in 1956; the Petrel project was publicly revealed by Fairchild in the company's annual report for that year. The weapons were produced at the Fairchild Guided Missiles Division factory at Wyandanch , Long Island , New York; production

1134-728: The Navy considering the weapon effective against targets traveling at up to 33 knots (61 km/h; 38 mph). The AUM-2 was usually carried by the Lockheed P2V Neptune , although the Grumman S2F Tracker was also considered as a potential carrier aircraft. Under the authority of the National Bureau of Standards , tests of the AUM-2 began in 1951; by this time, the Mark 41 torpedo had replaced

1176-540: The U.S. Department of Defense issued Directive 4000.20 “Designating, Redesignating, and Naming Military Rockets and Guided Missiles” which called for a joint designation system for rockets and missiles which was to be used by all armed forces services. The directive was implemented via Air Force Regulation (AFR) 66-20, Army Regulation (AR) 705-36, Bureau of Weapons Instruction (BUWEPSINST) 8800.2 on 27 June 1963. A subsequent directive, DoD Directive 4120.15 "Designating and Naming Military Aircraft, Rockets, and Guided Missiles",

1218-995: The advent of the Cold War and development of nuclear weapons necessitated faster, accurate and versatile missiles with longer range and missile development was pursued by multiple countries. Various attempts have been made to control the spread of long range missiles capable of carrying weapons of mass destruction , such as the Missile Technology Control Regime (1987) and the International Code of Conduct against Ballistic Missile Proliferation (2002). These were voluntary and not international treaties . Though not legally binding, more than 140 countries have been part of these agreements, and provide prior information on missile programs, expected launches, and tests. The gradual introduction of missile launched hypersonic glide vehicles since 2019, anti-satellite missiles , and

1260-442: The changing strategic environment. The Neptunes that had been converted for carrying the missile were restored to their normal configuration and reassigned, with the remaining Petrels were converted to serve as air-launched target drones. In 1962, the remaining Petrel drones were redesignated AQM-41A under the new Tri-Service designation system ; they were finally retired from service shortly afterwards. Missile A missile

1302-426: The deployment of dual use missiles capable of carrying both conventional and nuclear warheads are proliferation concerns. A missile is most often guided by a guidance system though there are missiles that are unguided during some phases of flight. Missile guidance refers to methods of guiding a missile to its intended target. Effective guidance is important because reaching the target position accurately and precisely

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1344-430: The missile carries the equipment needed to transmit the radiation needed to illuminate the target and receive the reflected energy. Once the homing is initiated, the missile directs independently towards the target. In semi-active systems, the source of the radiation is located outside the missile usually in the launch vehicle which might be an aircraft or a ship and the missile will receive the radiation to direct towards

1386-675: The precursor to modern missiles and the first rockets were used as propulsion systems for arrows as early as the 10th century in China . Usage of rockets as weapons before modern rocketry is attested to in China, Korea , India and Europe . In the 18th century, iron-cased rockets were used in India by the Kingdom of Mysore and Maratha Empire against the British which was developed into Congreve rocket and used in

1428-552: The rocket and missile designation system was mandated by Joint Regulation 4120.15E Designating and Naming Military Aerospace Vehicles and was implemented via Air Force Instruction (AFI) 16-401, Army Regulation (AR) 70-50, Naval Air Systems Command Instruction (NAVAIRINST) 13100.16 on 3 November 2020. The list of military rockets and guided missiles was maintained via 4120.15-L Model Designation of Military Aerospace Vehicles until its transition to data.af.mil on 31 August 2018. The basic designation of every rocket and guided missile

1470-407: The target, the target might required to be tracked continuously if it is in motion. A guidance system might use INS which consists of a gyroscope and accelerometer or might use satellite guidance (such as GPS ) to track the missile’s position relative to a known target. The missile computers will compute the flight path required to steer the missile towards the target. In command guidance ,

1512-405: The target, using semi-active radar homing . Once the missile had reached a range of just under 4,900 feet (1,500 m) from its target, the engine would be shut down and all wings and fins jettisoned. The torpedo dropped on a free trajectory into the water and began to home in on the target. The weapon was suitable for use against surface targets only—primarily ships and surfaced submarines , with

1554-429: The target. As the source is located outside, the launch vehicle needs to continue supporting the missile till it is guided to the intended target. In a passive system, the missile relies solely on the information from the target. The homing system might use light such as infrared , laser or visible light , radio waves or other electromagnetic radiation to illuminate the target. Once the guidance system identifies

1596-434: Was a Mark 21 Mod 2 torpedo , 24 inches (610 mm) in diameter, with a Fairchild J44 turbojet engine providing 1,000  lbf (4.4  kN ) thrust, wooden fins and wings 13 feet 2 inches (4.01 m) in span, and a nose fairing housing guidance equipment. On launch the 3,800-pound (1,700 kg), 24-foot (7.3 m) missile dropped to 200 feet (61 m) above the water and cruised at Mach 0.5 towards

1638-438: Was being placed on underwater engagements, for which Petrel's radar homing was useless; the use of semi-active radar guidance also required the launching aircraft to continue closing on the target throughout the missile's flight, exposing it to a far greater danger from enemy defenses. In February 1956, the weapons test ship USS  Mississippi participated in tests of the Petrel. Later in 1956 patrol squadrons VP(HM)-13 on

1680-417: Was completed by 1957. The Petrel was never considered a very high priority by the U.S. Navy, which was far more concerned about the threat from submarines than surface ships. New submarine designs powered by nuclear reactors, which could remain submerged indefinitely, were beginning to appear in the mid-1950s. The prospects of catching an enemy submarine on the surface were therefore receding, and more emphasis

1722-542: Was issued on 24 November 1971 and implemented via Air Force Regulation (AFR) 82-1/Army Regulation (AR) 70-50/Naval Material Command Instruction (NAVMATINST) 8800.4A on 27 March 1974. Within AFR 82-1/AR 70-50/NAVMATINST 8800.4A, the 1963 rocket and guided missile designation system was presented alongside the 1962 United States Tri-Service aircraft designation system and the two systems have been concurrently presented and maintained in joint publications since. The current version of

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1764-448: Was never considered a high priority by the Navy however, as it was useless against submerged submarines, which were considered the greatest potential threat. Following its withdrawal from operational usage, the Petrel was used as a target drone , receiving the designation AQM-41A shortly before being retired from service altogether. The development of the Petrel began in August 1944, when

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