His first helicopter success was in November with Oehmichen No. In April the next year Oehmichen flew m and m, a record, and in May flew a closed circuit helicopter about one kilometer in seven minutes, 40 seconds. The same year he flew one of his helicopters with two passengers.
First flown in , it was designed and developed by two Germans, Henrich Focke and Gerd Achgelis, a pilot. The frame of the aircraft was based on another that Focke had co-designed, the Focke-Wulf Fw 44 , and it utilized licensed rotor technology that relied on a radial engine to drive twin rotors.
A major breakthrough was the counter rotation of the rotors because this solved the puzzle of torque reaction. It also featured a small horizontal-axes propeller that was driven by the engine, to cool the engine when the helicopter hovered or flew at low speed.
Later, the concepts of VS became standard and the basis for the production of helicopters. Sikorsky was granted a patent for a direct lift aircraft in The direct lift aircraft included the features of the VS Igor Ivanovich Sikorsky was born on May 25, In his childhood, while he was home schooling by his mother, he developed a love for art. Igor developed an interest in the life and work of Leonardo Da Vinci.
In addition, he was very fascinated by the stories of Jules Verne. Igor became interested in natural sciences at the age of 11 while in Germany with his father. He started building flying machine models and made a small helicopter that was rubber powered at the age of To expand his knowledge in engineering, Sikorsky enrolled in the mechanical college of Kyiv Polytechnic Institute in the Russian Empire in After learning about the work of the Wright brothers' Flyer and others, Sikorsky decided to study aviation.
After many experiments and several unsuccessful attempts, Sikorsky began developing his first practical helicopter VS in when he was at Vought-Sikorsky Division. VS flew its test flight with cables connected in September The VS, powered by a 75 HP engine, had a single rotor with three blades.
Thus, it was the first helicopter to have a single lifting rotor. Sikorsky later developed VS with utility floats; this made take-off and landing over water possible in Hence, it became the first amphibious helicopter. In May , VS held the world endurance record for staying a loft for 1 hour 32 minutes and Chinese Kite was one of the first designs with a vertical flight, using rotary wings for lift.
Then the toys which used the pulling force of the string for the rotary blade to turn became popular. The patent was granted on March 19, Igor Sikorsky's first helicopter ascent, Stratford. Sikorsky, Igor I. Patent Number 1,, - Direct Lift Aircraft. Nichols, CT, issued March 19, Indeed, it took a series of events and many mishaps to develop the aircraft we know today as the helicopter. Even today, there are many different designs of helicopters that can be used for a variety of military and civilian uses.
It is amazing how far the development of helicopters have come in such a short amount of time. Modern day helicopters can fly distances of up to miles , reach speeds up to miles an hour and lift loads up to 56 tons. Early helicopter pioneers such as Paul Cornu, Etienne Oehmichen and Thomas Edison would likely be proud of the progress made.
Table of Contents Who Invented the Helicopter? On May 4 , it was the first helicopter to fly on the distance of one kilometer 0. About the Author Editorial Team.
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