First quadcopter
Now any adult, responsible and earning money a man can afford to buy a quadrocopter, so that with his help scare colleagues at work in the office or on the street.
And the first working prototype of such a toy (and at the same time all existing helicopters) was a Botezat helicopter that took off in the distant 1922. Moreover, as part of one of the experimental flights, this device was able to lift a load of 450 kg to a height of 4 meters.
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Georgy Alexandrovich Botezat was an American of Russian origin, an inventor, a professor at the Petrograd Technological Institute. He also graduated from two institutes, in Kharkov and Belzhe (Belgium), was an electrical engineer. But the main thing, why he is remembered, is a helicopter.
Tests of one of the first helicopters equipped with four propellers began in 1922. The multi-screw scheme made it possible to simplify the control of the apparatus: the turn was carried out by changing the position of the nose of the helicopter. Each screw variable pitch consisted of six blades. The design used string extensions ... from the piano.
The development of a quadrocopter was carried out with money from the US Army. The goal is to create an aircraft with vertical takeoff and landing. Botezat did not have the patience to develop prototypes, so he immediately began to build a full-size machine.
Despite the $ 200,000 spent on the program, which was a large amount in the first half of the last century, the project was covered due to some problems. In particular, in order to simply fly forward, we needed a fair wind. Botezat wanted to continue working and correct this problem, but he did not have time.
Inventor next to the aircraft.
The control stick is stored in the Smithsonian Air and Space Museum.
Control: 1 pilot
Load capacity: up to four passengers
Dimensions length / width / height: 20 x 20 x 3 meters
Weight: 1633 kg
Engine: 1 rotor engine 180 hp Le Rhone
Maximum speed: 48 km / h
Working height: 5 m
Maximum height: 9.1 m
And the first working prototype of such a toy (and at the same time all existing helicopters) was a Botezat helicopter that took off in the distant 1922. Moreover, as part of one of the experimental flights, this device was able to lift a load of 450 kg to a height of 4 meters.
')
Georgy Alexandrovich Botezat was an American of Russian origin, an inventor, a professor at the Petrograd Technological Institute. He also graduated from two institutes, in Kharkov and Belzhe (Belgium), was an electrical engineer. But the main thing, why he is remembered, is a helicopter.
Tests of one of the first helicopters equipped with four propellers began in 1922. The multi-screw scheme made it possible to simplify the control of the apparatus: the turn was carried out by changing the position of the nose of the helicopter. Each screw variable pitch consisted of six blades. The design used string extensions ... from the piano.
The development of a quadrocopter was carried out with money from the US Army. The goal is to create an aircraft with vertical takeoff and landing. Botezat did not have the patience to develop prototypes, so he immediately began to build a full-size machine.
Despite the $ 200,000 spent on the program, which was a large amount in the first half of the last century, the project was covered due to some problems. In particular, in order to simply fly forward, we needed a fair wind. Botezat wanted to continue working and correct this problem, but he did not have time.
Inventor next to the aircraft.
The control stick is stored in the Smithsonian Air and Space Museum.
Specifications
Control: 1 pilot
Load capacity: up to four passengers
Dimensions length / width / height: 20 x 20 x 3 meters
Weight: 1633 kg
Engine: 1 rotor engine 180 hp Le Rhone
Maximum speed: 48 km / h
Working height: 5 m
Maximum height: 9.1 m
Source: https://habr.com/ru/post/362499/
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