What is unmanned combat aerial vehicle (UCAV)?



An unmanned combat aerial vehicle (UCAV), also known as a combat drone or simply a drone, is an unmanned aerial vehicle (UAV) that usually carries aircraft ordnance such as missiles. Aircraft of this type have no onboard human pilot. These drones are usually under real-time human control, with varying levels of autonomy.They are used in drone strikes.

Equipment necessary for a human pilot (such as the cockpit, armor, ejection seat, flight controls, and environmental controls for pressure and oxygen) are not needed, as the operator runs the vehicle from a remote terminal, resulting in a lower weight and a smaller size than a manned aircraft.

While several nations possess and manufacture unarmed UAV, only the United States, Israel, China, Iran, Italy, India, Pakistan, Russia and Turkey  are at present known to have manufactured operational UCAV as of December 2015.


History 


One of the earliest explorations of the concept of the combat drone was by Lee De Forest, an early inventor of radio devices, and U. A. Sanabria, a TV engineer. They presented their idea in an article in a 1940 publication of Popular Mechanics.  The modern military drone as known today was the brainchild of John Stuart Foster Jr., a nuclear physicist and former head of the Lawrence Livermore National Laboratory (then called the Lawrence Radiation Laboratory).  In 1971, Foster was a model airplane hobbyist and had the idea this hobby could be applied to building weapons. He drew up plans and by 1973 DARPA (Defense Advanced Research Projects Agency) built two prototypes called "Praeire" and "Calere". They were powered by a modified lawn-mower engine and could stay aloft for two hours while carrying 28-pounds of load.

In the 1973 Yom Kippur War, Israel used unarmed U.S. Ryan Firebee target drones to spur Egypt into firing its entire arsenal of anti-aircraft missiles. This mission was accomplished with no injuries to Israeli pilots, who soon exploited the depleted Egyptian defenses. In the late 1970s and 80s, Israel developed the Scout and the Pioneer, which represented a shift toward the lighter, glider-type model of UAV in use today. Israel pioneered the use of unmanned aerial vehicles (UAVs) for real-time surveillance, electronic warfare, and decoys. The images and radar decoying provided by these UAVs helped Israel to completely neutralize the Syrian air defenses in Operation Mole Cricket 19 at the start of the 1982 Lebanon War, resulting in no pilots downed.

In the late 1980s, Iran deployed a drone armed with six RPG-7 rounds in the Iran–Iraq War.

Impressed by Israel's success, the US quickly acquired a number of UAVs, and its Hunter and Pioneer systems are direct derivatives of Israeli models. The first 'UAV war' was the first Gulf War: according to a May 1991 Department of the Navy report: "At least one UAV was airborne at all times during Desert Storm." After the Gulf War successfully demonstrated their utility, global militaries invested widely in the domestic development of combat UAVs. The first "kill" by an American UAV was on October 7, 2001 in Kandahar.

In recent years the U.S. has increased its use of drone strikes against targets in foreign countries and elsewhere as part of the War on Terror. In January 2014, it was estimated that 2,400 people have died from U.S. drone strikes in five years.  In June 2015 the total death toll of U.S. drone strikes was estimated to exceed 6,000.


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What is unmanned combat aerial vehicle (UCAV)?
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