Vertipedia is a product of the Vertical Flight Society. With data on 862 aircraft, 618 historical milestones, 478 people, and 394 organizations, Vertipedia is your "one-stop shop" for all things vertical lift.

1953 - First flight of Brantly B-2

1957 - The application of unsteady aerodynamic theory to rotor blades is published

1959 - First flight of the Sud-Aviation SA.316 Alouette (Lark) III Type series (SE.3160)

Our latest featured aircraft for February 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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Company names associated with aircraft

A number of aircraft carry associated company names that may seem odd at first. On pages related to specific aircraft the company is that of the latest/last manufacturer. On the Type page the company name is the company with the over-arching responsibility for the design of this family of aircraft (this can change over time). This approach ensures that both individual manufacturing and overall design responsibilities are properly recognized.

Vertipedia makes it easy for you to find a range of information on vertical flight, including:

  • Targeted searches of documents provided by the Vertical Flight Society, as well as public sources from across the internet
  • Important milestones that have helped shape the history of vertical flight
  • People who have played a role in vertical flight
  • Vertical flight aircraft, such as helicopters, tilt rotors and tilt wings, jet-lift VTOL, and more.

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