That's a very difficult question as rotors were developed by many people from as far back as the 1800's. - Possibly the first successful rotor as we know it today was developed by Juan de la Cierva in 1923. His rotor was widely used in 'gyroplanes' which were aircraft with minimal wings, and in which the rotor turned freely to provide lift, but was not powered. These aircraft were powered by an engine pulling it forward, and this motion turned the rotor. The first really successful powered rotor was developed by Igor Sikorsky during the early 1940's.
Sir Edmund pierce Jacquier first invented the single rotor helicopter in the year 1989.
Igor Sikorsky was one of many helicopter inventors. He was the one who invented a helicopter that used a tail rotor to counteract the thrust of the main rotor, and he was able to build one with a strong enough engine, an efficient enough rotor, and a light enough airframe. So his helicopter became the first successful commercially produced helicopter.
The first transverse twin rotor helicopter was invented in 1936.The Focke-Wulf Fw 61 was invented by Heinrich Focke and flew on 26 Jun 1936.
The first one-man helicopter was invented and built by Igor Sikorsky in 1940. This experimental aircraft, known as the Vought-Sikorsky VS-300, featured a single main rotor and a tail rotor for stability. It was a significant milestone in aviation history, demonstrating the feasibility of vertical flight for a single pilot. Sikorsky's work laid the foundation for future advancements in helicopter design.
Nobody invented the helicopter in 1918
Sir Edmund pierce Jacquier first invented the single rotor helicopter in the year 1989.
1944
1957
Igor Sikorsky was one of many helicopter inventors. He was the one who invented a helicopter that used a tail rotor to counteract the thrust of the main rotor, and he was able to build one with a strong enough engine, an efficient enough rotor, and a light enough airframe. So his helicopter became the first successful commercially produced helicopter.
The first transverse twin rotor helicopter was invented in 1936.The Focke-Wulf Fw 61 was invented by Heinrich Focke and flew on 26 Jun 1936.
The small rotor on the tail, called the tail rotor, counteracts the torque produced by the main rotor of the helicopter. Without the tail rotor, the helicopter would spin uncontrollably in the opposite direction of the main rotor. The tail rotor helps maintain the helicopter's balance and heading.
The helicopter was made in China.
Rotor blades are on top of a helicopter.
it stabilises and steers the helicopter.
That is a twin rotor helicopter
Main rotor and tail rotor. The main rotor is on top of the helicopter consisting of two or more blades, and the tail rotor is at the back of the helicopter, which also consists of two or more blades.
The main rotor on a helicopter creates lift, which allows the helicopter to become airborne and maintain its altitude during flight.