Vertipedia is a product of the Vertical Flight Society. With data on 861 aircraft, 613 historical milestones, 474 people, and 393 organizations, Vertipedia is your "one-stop shop" for all things vertical lift.

1947 - First flight of Seibel S-3

1948 - First Mil helicopter flies (prototype of the Mil Mi-1 Type series)

Our latest featured aircraft for September is the Cierva W.11 Air Horse .

Attribution

The aircraft was designed to provide viable heavy load lifting capability for commercial operations. It employed 3 main rotors all rotating in the same direction. Torque offset was provided by thrust components from the 3 rotors through built-in shaft tilt. The aircraft had a semi-monoquoque structure, a single engine, and a long-stroke undercarriage (5ft) to cope with high rates of descent.  A description of the aircraft and its characteristics can be found in the following references,

Source: "The Cierva W-11 Air Horse", J. Gordon Leishman, VERTIFLITE Spring 2003, Page 52

Source: "Discussing the Helicopter", FLIGHT Staff, FLIGHT, December 2nd 1948, Pages 665-668

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For each aircraft and Type there is an automated search of available resources (documents, etc.). In most cases these automated searches produce a range of useful results. In some case the results may include many that are not relevant. This is because the aircraft or Type designation includes a common word (e.g. Model). It is difficult to define an algorithm that will counter this issue. The user can always use the configurable search from the menu bar for better results.

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