who is the known as the father of aviation
George Cayley In 1799 he set forth the concept of the modern aeroplane as a fixed-wing flying machine with separate systems for lift, propulsion, and control.[2] [3] He was a pioneer of aeronautical engineering and is sometimes referred to as "the father of aviation."[1] He discovered and identified the four forces which act on a heavier-than-air flying vehicle: weight, lift, drag and thrust.[4] Modern aeroplane design is based on those discoveries and on the importance of cambered wings, also identified by Cayley.[5] He constructed the first flying model aeroplane and also diagrammed the elements of vertical flight.[6] He designed the first glider reliably reported to carry a human aloft. He correctly predicted that sustained flight would not occur until a lightweight engine was developed to provide adequate thrust and lift.[7] The Wright brothers acknowledged his importance to the development of aviation.[7]
Airline DELAG, Deutsche Luftschiffahrts-Aktiengesellschaft was the world's first airline.[1] It was founded on November 16, 1909, with government assistance, and operated airships manufactured by The Zeppelin Corporation. Its headquarters were in Frankfurt. The first fixed wing scheduled air service was started on January 1, 1914, from St. Petersburg, Florida, to Tampa, Florida.[2] The four oldest non-dirigible airlines that still exist are Netherlands' KLM (1919),[3] Colombia's Avianca (1919),[4] Australia's Qantas (1921),[5] and the Czech Republic's Czech Airlines (1923).[6]