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The Evolution of Rotary Wing Flight

THE EVOLUTION OF ROTARYWINGFLIGHT 400 B.C. Chinese tops had feathers at the end of a stick, which were rapidly spun, then released to fly. 1400s Leonardo da Vinci sketched the "aerial-screw" or "air gyroscope" device. 1700s French naturalist Launoy used a coaxial version of the Chinese top in a model consisting of a counter-rotating set of turkey 1800s feathers. Ponton d'Amecourt flew a number of small steam-powered helicopter models, which he called helicopteres. 1907 Paul Cornu constructed a vertical flight machine that was reported to have carried a human off the ground for the first time. 1900s Igor Ivanovich Sikorsky and Boris Yur'ev independently began to design and build vertical-lift machines in Czarist Russia. 1922 Georges de Bothezat built one of the largest helicopters of the time under contract to the US Army. 1938 In 1938, the Weir Company's first true helicopter design, W-5, took its first flight. 1943 Commander William J. Kossler, appointed to lead the helicopter 1943 Sikorsky developed the R-5, a two-seater helicopter, which was much larger, more powerful and more capable than the program, chose Commander Frank R-4. Erickson to be the first pilot to learn how to fly. Without a training facility, Erickson went to the Sikorsky factory for flight lessons. On Nov. 19, 1943, the chief of naval operations designated USCG Air Station Floyd Bennett Field as a helicopter-training base. 1952 The success of the Model 47 led Bell Helicopter to develop the UH-1 Huey. 1959 Wes Lematta, founder of Columbia Helicopters, wanted to improve the accuracy of external-load operations and while working on a job near Portland, Oregon discovered he could better complete the project if he looked down at the load instead of relying on radio contact. The technique he developed is called direct visual operational control (DVOC), also known as vertical reference, and is widely used in heavy-lift operations today. 1960s-1970s Although the bulk of helicopters produced are for the military, several manufacturers produce training helicopters or helicopters aimed at the general aviation market. Main helicopter producers: Bei! 1981 The McDonnell Douglas 500 series' NOTAR (No Tail Rotor) helicopter took its first flight and in the 1990s became the Helicopter A Textron Company DOUGLAS world's most quiet BOEING production helicopter. Sikorsky 1989 The Bell Boeing V-22 Osprey, a military tiltrotor aircraft with AEROSPATIALE both a vertical takeoff and landing and short takeoff and landing capability, takes its first flight. AgustaWestland Peurocopter EADS Company 2010 The Sikorsky X2 exceeded 225 knots during flight testing surpassing the rotorcraft world speed record and would later reach a speed of 260 knots. Rotary wing flight has evolved significantly over the last 2000 years, and we are looking forward to its breakthroughs in the years to come! Sources: http://www.helis.com/pioneers/ http://terpconnect.umd.edu/-leishman/Aero/history.html http://myfundi.co.za/e/The_history_of_the_Helicopter http://www.rotaryaction.com/history.html http://www.wikipedia.org/ Brought to you by: HILLSBORO AVIATION THE EVOLUTION OF ROTARYWINGFLIGHT 400 B.C. Chinese tops had feathers at the end of a stick, which were rapidly spun, then released to fly. 1400s Leonardo da Vinci sketched the "aerial-screw" or "air gyroscope" device. 1700s French naturalist Launoy used a coaxial version of the Chinese top in a model consisting of a counter-rotating set of turkey 1800s feathers. Ponton d'Amecourt flew a number of small steam-powered helicopter models, which he called helicopteres. 1907 Paul Cornu constructed a vertical flight machine that was reported to have carried a human off the ground for the first time. 1900s Igor Ivanovich Sikorsky and Boris Yur'ev independently began to design and build vertical-lift machines in Czarist Russia. 1922 Georges de Bothezat built one of the largest helicopters of the time under contract to the US Army. 1938 In 1938, the Weir Company's first true helicopter design, W-5, took its first flight. 1943 Commander William J. Kossler, appointed to lead the helicopter 1943 Sikorsky developed the R-5, a two-seater helicopter, which was much larger, more powerful and more capable than the program, chose Commander Frank R-4. Erickson to be the first pilot to learn how to fly. Without a training facility, Erickson went to the Sikorsky factory for flight lessons. On Nov. 19, 1943, the chief of naval operations designated USCG Air Station Floyd Bennett Field as a helicopter-training base. 1952 The success of the Model 47 led Bell Helicopter to develop the UH-1 Huey. 1959 Wes Lematta, founder of Columbia Helicopters, wanted to improve the accuracy of external-load operations and while working on a job near Portland, Oregon discovered he could better complete the project if he looked down at the load instead of relying on radio contact. The technique he developed is called direct visual operational control (DVOC), also known as vertical reference, and is widely used in heavy-lift operations today. 1960s-1970s Although the bulk of helicopters produced are for the military, several manufacturers produce training helicopters or helicopters aimed at the general aviation market. Main helicopter producers: Bei! 1981 The McDonnell Douglas 500 series' NOTAR (No Tail Rotor) helicopter took its first flight and in the 1990s became the Helicopter A Textron Company DOUGLAS world's most quiet BOEING production helicopter. Sikorsky 1989 The Bell Boeing V-22 Osprey, a military tiltrotor aircraft with AEROSPATIALE both a vertical takeoff and landing and short takeoff and landing capability, takes its first flight. AgustaWestland Peurocopter EADS Company 2010 The Sikorsky X2 exceeded 225 knots during flight testing surpassing the rotorcraft world speed record and would later reach a speed of 260 knots. Rotary wing flight has evolved significantly over the last 2000 years, and we are looking forward to its breakthroughs in the years to come! Sources: http://www.helis.com/pioneers/ http://terpconnect.umd.edu/-leishman/Aero/history.html http://myfundi.co.za/e/The_history_of_the_Helicopter http://www.rotaryaction.com/history.html http://www.wikipedia.org/ Brought to you by: HILLSBORO AVIATION

The Evolution of Rotary Wing Flight

shared by Hannah Edwards on Oct 19
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The history of rotary wing flight is a long and interesting one dating all the way back to 400 B.C. Around this time, the Chinese began making tops with feathers at the end of a stick that they would ...

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