Introduction
The first ever aerial vehicle without a human navigator was innovated by Joseph Michel and Jacques-Étienne Montgolfier in 1783 when they demonstrated flying capabilities of a hot air balloon (HAB). However, its direction of flying was left to be controlled by flow of wind. The place of landing also could not be controlled from ground. In 1849 an Austrian army lieutenant Franz Von Uchatius conceived the idea of a HAB Bomb for war operations. In 1858 Gasper Felix Tournachonthe attempted the first aerial photography from a HAB in Paris. After a long forty years Nikola Tesla couldfirst demonstrate in 1898 that a boat could be controlled by radio signal. Perhaps that is the genesis of all modern unmanned aerial vehicles (UAV) which can be controlled from ground through radio signals.

A UAV is synonymously known as a Drone because it continuously makes dull and monotonous humming sound emanated from its fas rotating wheels fitted with tiny wing type plates. Therefore, in this article these two acronym and word would be used without intending any variation in features of such flying machines. Readers may know more about Drones from the research work of David Daly, a licensed pilot, professional manager and oceanographer1 about the evolutionary process of UAVs through the 20th century. Birth of the first version of modern drones could be traced in 1935 when a DH.82B Queen Bee aerial vehicle was constructed for hitting aerial targets. A quantum leap in drone technology was achieved in 1973 when Mastiff and IAA Drones were developed by Israel for surveillance and scouting in battlefields. Thus, weaponised raider drones were brought to warzones.  Learn more  from pdf >>>>>>