Khác biệt giữa các bản “George Cayley”

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| url = http://www.flyingmachines.org/cayl.html
| publisher = Flyingmachines.org
| accessdate =ngày 26 Julytháng 7 năm 2009
| quote = Sir George Cayley is one of the most important people in the history of aeronautics. Many consider him the first true scientific aerial investigator and the first person to understand the underlying principles and forces of flight.}}</ref><ref name="ctie">{{chú thích web
| title = The Pioneers: Aviation and Airmodelling
| url = http://www.ctie.monash.edu.au/hargrave/cayley.html
| publisher =
| accessdate =ngày 26 Julytháng 7 năm 2009
| quote = Sir George Cayley, is sometimes called the 'Father of Aviation'. A pioneer in his field, he is credited with the first major breakthrough in heavier-than-air flight. He was the first to identify the four aerodynamic forces of flight – weight, lift, drag, and thrust – and their relationship and also the first to build a successful human carrying glider.}}</ref><ref>{{chú thích web
| title = U.S Centennial of Flight Commission – Sir George Cayley.
| url = http://www.centennialofflight.gov/essay/Prehistory/Cayley/PH2.htm
| publisher =
| accessdate =ngày 10 Septembertháng 9 năm 2008
| quote = Sir George Cayley, born in 1773, is sometimes called the Father of Aviation. A pioneer in his field, Cayley literally has two great spurts of aeronautical creativity, separated by years during which he did little with the subject. He was the first to identify the four aerodynamic forces of flight – weight, lift, drag, and thrust and their relationship. He was also the first to build a successful human-carrying glider. Cayley described many of the concepts and elements of the modern aeroplane and was the first to understand and explain in engineering terms the concepts of lift and thrust.}}</ref>. Năm 1799 ông đưa ra khái niệm của các máy bay hiện đại như là một máy bay cánh cố định với các hệ thống riêng biệt cho lực nâng, động cơ đẩy<ref>{{chú thích web
| title = Aviation History
| url = http://www.aviation-history.com/early/cayley.htm
| publisher =
| accessdate =ngày 26 Julytháng 7 năm 2009
| quote = '''In 1799 he set forth for the first time in history the concept of the modern aeroplane'''. Cayley had identified the drag vector (parallel to the flow) and the lift vector (perpendicular to the flow).}}</ref><ref>{{chú thích web
| title = Sir George Cayley (British Inventor and Scientist)
| url = http://www.britannica.com/EBchecked/topic/100795/Sir-George-Cayley-6th-Baronet
| publisher = Britannica
| accessdate =ngày 26 Julytháng 7 năm 2009
| quote = English pioneer of aerial navigation and aeronautical engineering and designer of the first successful glider to carry a human being aloft. Cayley established the modern configuration of an aeroplane as a fixed-wing flying machine with separate systems for lift, propulsion, and control as early as 1799.
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