The Amazing World of War Machines S01 E11 Air Defense & Surveillance - Helicopters

In the early 1480s, Leonardo Da Vinci designed an aerial screw. Its intended use was unknown, yet served as the inspiration for the helicopter. Developments over the years have seen the Helicopter becoming more involved in troop transport, including airlifting the wounded directly to hospitals. Today's attack Helicopters show the versatility of this war machine.