Drones are a new source of danger for aircraft

Drones used to be called UAVs (Unmanned Aerial Vehicles) and were operated by the law enforcing agencies in order to track down unwanted elements for elimination. However, with the introduction of drones for use by commercial establishments the sky is getting overcrowded and airlines are finding it difficult to avoid these airborne gadgets.
As reported by the Federal Aviation Administration in Washington, airline pilots have told safety administrators regarding at least of 25 near misses which could have been catastrophic. The incidents are from a Jet Blue flight arriving at LaGuardia airport earlier this month to close calls at Norfolk, Virginia and New Orleans, Louisiana.
Moreover, last month a drone came within 25m of a passenger plane landing at London's Southend Airport.
The dangers posed by drones in the air cannot be overlooked because companies like Amazon want to use drones to deliver goods and this unique unmanned aircraft industry is set to boom. FAA has estimated that in the US alone there could be as many as 7500 commercial drones in the skies within five years.
Google has entered the business of using drones for making supplies - in Australia, it made delivery of packages including chocolate bars, dog treats and cattle vaccines to two farmers in Queensland. The deliveries were made by a 1.5m-wide (5ft) single-wing drone prototype that has four propellers that move into different positions for different stages of flight and the goods fit into a gap in the middle of the wing. It made use of a fishing line like apparatus to lower the payload to customers from about 150 feet above the ground.
Other applications of drones in civilian life are in Bhutan, where these are used to deliver medical supplies to remote clinics and in Namibia the World Wildlife Fund is trying to spot wildlife poachers.