The VS-300 was once the arena’s first operational unmarried major rotor helicopter, laying the root for contemporary helicopter generation.
The primary take a look at flight of the VS-300 helicopter came about in 1939. (Photograph: Uncommon Historic Pictures).
Vought-Sikorsky VS-300 To be The usa’s first single-engine helicopterevolved by means of Russian-American engineer Igor Sikorsky. The unique design consisted of a three-bladed rotor, powered by means of a 75 horsepower (56 kW) motor. The unique design, along side next enhancements to the fashion, very much influenced many options repeatedly discovered on fashionable helicopters.
The method of creating a practical operational helicopter fashion of Igor Sikorsky started in 1938, when he was once technical supervisor of the Vought-Sikorsky unit of United Airplane Company (UAC). He satisfied UAC executives that his years of study into issues associated with rotary-wing airplane would result in a step forward.
His first take a look at airplane, the VS-300, flew on September 14, 1939, whilst nonetheless hooked up to cables. On Might 13, 1940, VS-300 finished its first unfastened flight. As the arena’s first unmarried major rotor helicopter to function effectively, the VS-300 reaches a top of four.five or six m and strikes ahead 60 m, then hovers in position, reverses and lands. secure.
Probably the most first flights of the VS-300. (Photograph: Wikimedia).
When creating rotary-wing airplane, Sikorsky was once the primary to make use of just a unmarried engine to energy each the principle and tail rotor programs. For some later flights of the VS-300, Sikorsky added a vertical wing floor on the finish of the tail to help in anti-rotation, however this was once later deserted as useless.
Sikorsky additionally provided the VS-300 with floats and carried out takeoff and touchdown on water on April 17, 1941, making it the primary operational amphibious helicopter. On Might 6, 1941, Sikorsky flew this airplane fashion and set a global document for flight time, attaining 1 hour 32 mins 26.1 seconds.
In Might 1942, the two-seat model of the VS-300 was once dropped at america Military. The general variant of the VS-300 was once provided with a 150 horsepower Franklin engine. This was once one of the most first helicopters able to sporting shipment.
In 1943, VS-300 was once dropped at the Henry Ford Museum in Dearborn, Michigan, USA. The helicopter has remained on show ever since, excluding for a go back go back and forth to the Sikorsky Airplane manufacturing unit for recovery in 1985.
The luck of the VS-300 and the teachings discovered from the automobile’s building laid the root for additional advances in helicopter generation. Sikorsky’s steady analysis and checking out ended in the introduction of extra complicated and higher acting helicopters, serving to to form the fashionable rotary-wing airplane trade.
In line with VnExpress