History
HVM
LOSAT developed out of an earlier Vought project, the HVM. HVM was a multi-platform weapon supported by the US Air Force, for the Fairchild Republic A-10 Thunderbolt II, and by the US Army and US Marine Corps, for helicopters and other vehicles. HVM offered performance similar to existing systems like the AGM-114 Hellfire but offered a semi-fire-and-forget operation through the use of FLIR tracking and guidance commands sent to it via a low-power laser. It could be carried on any platform that had FLIR support, with the self-contained command guidance system able to be carried externally, or potentially integrated into existing target designators. With the end of the Cold War, the Air Force pulled out of the project, and development work on HVM appears to have ended in the late 1980s.
AAWS-H
At about the same time, in 1988, the Army released a new requirement for a ground-based anti-tank system, known as Advanced Anti-Tank Weapon System - Heavy, or AAWS-H for short. [2] AAWS-H specified an air-liftable lightweight system with the capability to knock out any existing or near-future tank outside its own gun range. The TOW missile could be guided from concealed locations, but did not offer the needed range and its relatively slow flight speeds (~250 m/s versus 1650 m/s for HVM) left it vulnerable to counterattack from the target while the missile was in flight.
To fill AAWS-H, Vought developed a slightly larger extended-range version of HVM known as Kinetic Energy Missile (KEM), while its partner, Texas Instruments, provided a new FLIR targeting system that it was already working on as a TOW upgrade. Several vehicles were studied to mount the system, including the front-runner M2 Bradley, [3] as well as the M8 Armored Gun System. [4] However, in order to reduce costs and improve air mobility in a post–Cold War world, LOSAT eventually emerged on an extended-length heavy-duty Humvee with a hard-top containing four KEMs ready to fire, along with a trailer containing another eight rounds in two-round packs. The new guidance system could keep two missiles in flight to separate targets, allowing the vehicle to salvo fire its weapons against a tank squadron in a few seconds. [2] Reaching speeds of 1,500 m/s (5,000 ft/s), LOSAT was in the air from launch to maximum range for under four seconds, making counterfire extremely difficult. The range was beyond that of existing main tank guns, allowing the LOSAT to fire and move before tanks could maneuver into a position to return fire.
The first KEMs were test fired in 1990, and a contract for continued development was placed by the Army. This was much slower in pace, and it was only in 1997 that an Advanced Technology Concept Demonstrator program started to bring the system to production quality. The contract called for 12 LOSAT vehicles and 144 KEMs, to be delivered by 2003. Even before this contract was complete, the Army asked for a production run of another 108 missiles in August 2002. [1] The first of the 12 LOSAT units was delivered in October 2002, and the system began a series of 18 production-qualification test firings in August 2003, at White Sands Missile Range in New Mexico. By March 2004, 18 KEMs had been fired at targets under a variety of conditions, both during the day and night. Another 8 were fired in the summer of 2004 at Fort Bliss as part of a user-testing exercise.
Cancellation
By the time the test program was finished it was obvious the Army was going to cancel LOSAT after the low-rate initial production (LRIP) batch of about 435 missiles was delivered. [2] By this point the Army had already started work on a system known as the Compact Kinetic Energy Missile (or CKEM), based on the LOSAT concepts but smaller and lighter, more in tune with real-world threats. As it turned out, even the LRIP contract was never funded, and the LOSAT program terminated.
In military terminology, a missile is a guided airborne ranged weapon capable of self-propelled flight usually by a jet engine or rocket motor. Missiles are thus also called guided missiles or guided rockets. Missiles have five system components: targeting, guidance system, flight system, engine, and warhead. Missiles come in types adapted for different purposes: surface-to-surface and air-to-surface missiles, surface-to-air missiles, air-to-air missiles, and anti-satellite weapons.
A rocket-propelled grenade (RPG) is a shoulder-fired missile weapon that launches rockets equipped with an explosive warhead. Most RPGs can be carried by an individual soldier, and are frequently used as anti-tank weapons. These warheads are affixed to a rocket motor which propels the RPG towards the target and they are stabilized in flight with fins. Some types of RPG are reloadable with new rocket-propelled grenades, while others are single-use. RPGs are generally loaded from the front.
An anti-tank guided missile (ATGM), anti-tank missile, anti-tank guided weapon (ATGW) or anti-armor guided weapon 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 a single soldier, to larger tripod-mounted weapons, which require a squad or team to transport and fire, to vehicle and aircraft mounted missile systems.
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.
High-explosive anti-tank (HEAT) is the effect of a shaped charge explosive that uses the Munroe effect to penetrate heavy armor. The warhead functions by having an explosive charge collapse a metal liner inside the warhead into a high-velocity shaped charge jet; this is capable of penetrating armor steel to a depth of seven or more times the diameter of the charge. The shaped charge jet armor penetration effect is purely kinetic in nature; the round has no explosive or incendiary effect on the armor.
Anti-tank warfare originated from the need to develop technology and tactics to destroy tanks during World War I. Since the Allies deployed the first tanks in 1916, the German Empire developed the first anti-tank weapons. The first developed anti-tank weapon was a scaled-up bolt-action rifle, the Mauser 1918 T-Gewehr, that fired a 13.2 mm cartridge with a solid bullet that could penetrate the thin armor of tanks at that time and destroy the engine or ricochet inside, killing occupants. Because tanks represent an enemy's strong force projection on land, military strategists have incorporated anti-tank warfare into the doctrine of nearly every combat service since. The most predominant anti-tank weapons at the start of World War II in 1939 included the tank-mounted gun, anti-tank guns and anti-tank grenades used by the infantry, and ground-attack aircraft.
Starstreak is a British short-range surface-to-air missile that can be used as a man-portable air-defence system (MANPADS) or used in heavier systems. It is manufactured by Thales Air Defence in Belfast, Northern Ireland. It is also known as Starstreak HVM. After launch, the missile accelerates to more than Mach 4, making it the fastest short-range surface-to-air missile in existence. It then launches three laser beam-riding submunitions, increasing the likelihood of a successful hit on the target. Starstreak has been in service with the British Army since 1997. In 2012 Thales relaunched the system as ForceSHIELD.
The BGM-71 TOW is an American anti-tank missile. TOW replaced much smaller missiles like the SS.10 and ENTAC, offering roughly twice the effective range, a more powerful warhead, and a greatly improved semi-automatic command to line of sight (SACLOS) that could also be equipped with infrared cameras for night time use.
A tank gun is the main armament of a tank. Modern tank guns are high-velocity, large-caliber artilleries capable of firing kinetic energy penetrators, high-explosive anti-tank, and cannon-launched guided projectiles. Anti-aircraft guns can also be mounted to tanks.
The Avenger Air Defense System, designated AN/TWQ-1 under the Joint Electronics Type Designation System, is an American self-propelled surface-to-air missile system which provides mobile, short-range air defense protection for ground units against cruise missiles, unmanned aerial vehicles, low-flying fixed-wing aircraft, and helicopters.
The FGM-172 SRAW, also known as the Predator SRAW, was a lightweight, close range missile system produced by Lockheed Martin, developed by Lockheed Martin and Israel Military Industries. It is designed to complement the FGM-148 Javelin anti-tank missile. The Predator had a longer range and was more powerful than the AT4 that it was designed to replace, but had a shorter range than the Javelin.
The M8 Armored Gun System (AGS), sometimes known as the Buford, is an American light tank that was intended to replace the M551 Sheridan and TOW missile-armed Humvees in the 82nd Airborne Division and 2nd Armored Cavalry Regiment of the U.S. Army respectively.
The Compact Kinetic Energy Missile (CKEM) was a developmental program to produce a hypersonic anti-tank guided missile for the U.S. Army. Lockheed Martin was the primary contractor. The program was the third in a series of projects based on kinetic energy missiles that stretches back to 1981's Vought HVM through the 1990s to 2000s LOSAT and finally to the CKEM. The Army Aviation and Missile Command (AMCOM) developed this program as part of the Army's Future Combat Systems. This missile was primarily an anti-tank weapon, and could be mounted on land vehicles and low-altitude aircraft. The goal of these weapons was to demonstrate a state-of-the-art system for the next generation. The program has since been cancelled.
Armour-piercing fin-stabilized discarding sabot (APFSDS), long dart penetrator, or simply dart ammunition is a type of kinetic energy penetrator ammunition used to attack modern vehicle armour. As an armament for main battle tanks, it succeeds Armour-Piercing Discarding Sabot (APDS) ammunition, which is still used in small or medium caliber weapon systems.
Short range air defense (SHORAD) is a group of anti-aircraft weapons and tactics that have to do with defense against low-altitude air threats, primarily helicopters and low-flying aircraft such as the A-10 or Sukhoi Su-25. SHORAD and its complements, HIMAD and THAAD divide air defense of the battlespace into domes of responsibility based on altitude and defensive weapon ranges.
List of abbreviations, acronyms and initials related to military subjects such as modern armour, artillery, infantry, and weapons, along with their definitions.
The Vought HVM, short for Hyper-Velocity Missile, was an anti-tank missile developed during the 1980s. The HVM carried no warhead and killed its targets with kinetic energy alone using a metal rod penetrator. Development as an air-launched weapon for the A-10 Thunderbolt II ended sometime in the late 1980s but continued for helicopter use into the 1990s along with a ground-launched variant known as the (larger) MGM-166 LOSAT. None of these weapons were operationally deployed.
United States Army air defense relies on a range of ground launched missiles, ranging from hand held to vehicle mounted systems. The Air Defense Artillery is the branch that specializes in anti-aircraft weapons. In the US Army, these groups are composed of mainly air defense systems such as the PATRIOT Missile System, Terminal High Altitude Air Defense, and the Avenger Air Defense system which fires the FIM-92 Stinger missile.
The Armored Gun System (AGS) was a U.S. Army competition in the 1990s to design a light tank to replace the M551 Sheridan and TOW-equipped HMMWVs. It was the ultimate incarnation of several research programs run in the 1970s with the aim of providing air-mobile light infantry forces with the firepower needed to last in the battlefield.
The Mobile Protected Firepower (MPF) is a U.S. Army program to procure a combat vehicle that is capable of providing mobile, protected, direct fire offensive capability. The projected vehicle has been designated the M10 Booker, and will according to description essentially serve the role of an assault gun. The program is part of the Next Generation Combat Vehicle program.
