— Ch. 1 · Origins In The Air —
Surveillance aircraft.
~5 min read · Ch. 1 of 6
In 1794, a hydrogen-filled balloon named L'Entreprenant floated above the battlefield at Fleurus for nine hours. French officers used this vessel to observe Austrian Army movements while dropping notes to ground troops below. Charles Coulston Gillispie records that these balloons formed the Compagnie d'Aéronautiers, the first air force in history. They did not cross into enemy lines but hovered over friendly positions to gain a higher vantage point. A soldier inside held a telescope while another relayed information using semaphores or written messages.
The Union Army adopted similar methods during the American Civil War under President Abraham Lincoln's approval. Thadeus Low proposed using balloons capable of holding five soldiers who could transmit telegraph signals back to command centers. By the 1880s, British meteorologist Douglas Archibald experimented with unmanned vehicles by rigging cameras to kites. He attached a long cable to the kite string to activate the camera shutter from the ground. American Army Corporal William Eddy later adapted this concept for the Spanish-American War of 1898. His kite-mounted camera produced the first-ever military aerial surveillance photos.
Cold War Arms Race
During the 1960s, spy flights became a major source of contention between the United States and the Soviet Union. The U.S. military developed the U2 aircraft to fly at altitudes reaching 70,000 feet to avoid detection by KGB surveillance systems. This plane carried a Hycon 73B camera capable of capturing details as small as 2.5 feet wide. In 1962, images captured by a U2 revealed nuclear missiles in Cuba and initiated the Cuban Missile Crisis.
Aerial reconnaissance proved extremely dangerous throughout the Cold War era. Out of 152 cryptologists who died during that period, 64 of them participated in aerial reconnaissance missions. Between 1945 and 1977, more than forty reconnaissance aircraft were shot down across European and Pacific areas. The US Military initially used standard B-29 bombers before designing specialized variants like the C-130 and RC-130. Intelligence personnel commanding these repurposed aircraft earned the nickname backenders while flying ferret missions. The Department of the Navy reported in May 1991 that at least one unmanned aerial vehicle remained airborne continuously during Operation Desert Storm.