Here’s The Best Military Drones From Around The World
Boeing A160 Hummingbird
 You don’t often see a drone helicopter!
In its military designation, it’s the MQ-18 Hummingbird. But however you prefer to refer to it, the Hummingbird is a UAV helicopter – but it’s one of the more dated UAVs on this list and its military use was quite short lived. The MQ-18 was initially funded by the US Army and US Navy, but by 2012 the program was cancelled citing extensive delays and maintenance issues. Vibration of the aircraft was a continual problem. The Hummingbird was 35 feet long with a rotor diameter of 36 feet. It had an impressive 24-hour endurance and could reach altitudes of 30,000 feet.Â
Boeing A160 Hummingbird: $6.3 million per unit