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400 BCE
First Design of a Helicopter
Chinese toy consisting of a bamboo propellor and a stick was the earliest form of a helicopter. -
1480
Leonardo da Vinci's Helicopter Design
Leonardo da Vinci sketched the aerial screw, an aircraft with a screw-like configuration that produced lift when spun. However he never made a real model, only drawings. -
Christian De Launoy's Rotor
Christian De Launoy created a model with two rotors that spun in opposite directions; therefore balancing out the torque reaction and improving stability and handling -
The First Time Aluminum was Used
The first aluminum was used in the design and construction of helicopters. It was advantageous as it was light, strong, and corrosion resistant. -
Alphonse Pénaud's Helicopter Design
Alphonse Pénaud developed the co-axle rotor consisting of a pair of rotors fitted into the same shaft which spun on the same axis as each other. Although each rotor spun in different directions, this balanced the torque reactions as did De Launoy's design. -
Paul Cornu's Design
Paul Cornu designed the first pilot driven helicopter. His helicopter incorporated two six meter rotors -
First Helicopter capable of Movement
Father and son Emile and Henry Berliner developed a rotor capable of movement on the x-axis.This provided directional control of the helicopter. -
Stud Welding
Stud welding was invented and used for industrial use for purposes such as welding steel. -
Fiberglass was Developed
Fiberglass was developed, yet it wasn't used on helicopters until 1965. -
First Pilot Controlled Helicopter
Heinrich Karl Johann Focke made the first helicopter that was fully controlled by the pilot. The FW 61 -
World's First Successful Helicopter
On September 14, 1939, the VS-300, the world's first practical helicopter, took flight at Stratford, Connecticut. Designed by Igor Sikorsky and built by the Vought-Sikorsky Aircraft Division of the United Aircraft Corporation, the helicopter was this first to incorporate a single main rotor and tail rotor design. -
Skids were Introduced
Skids were introduced to helicopters as a replacement for wheels. They were lightweight and easier to connect. -
Fiberglass was Used
Fiberglass was used in the construction of helicopters. Particularly for the blades and airframe. -
Carbon Fiber
Composite technology improved with the development of better plastic resins and strengthening fibers, leading to creation of carbon fiber, which was used for fuselage, rotor blades, and ducting of the engine. -
Stealth is Key
The first derivative of a stealth helicopter was developed for the U.S. Military. -
Remote Controlled
The U.S. military developed the first fully controllable unmanned helicopter. (externally controlled) -
Electric Helicopter
The first fully electric helicopter was created by Sikorsky (An American aviation company)