Welcome to DOGG5306's HQ

A helicopter is an aircraft which is lifted and propelled by one or more horizontal rotors, each having two or more rotor blades. Helicopters are classified as rotary-wing aircraft to distinguish them from conventional fixed-wing aircraft. The word helicopter is derived from the Greek words helix (spiral) and pteron (wing). The first single-rotor, fully controllable helicopter to enter large full-scale production was made by Igor Sikorsky in 1942.