Vertipedia is a product of the Vertical Flight Society. With data on 865 aircraft, 620 historical milestones, 542 people, and 395 organizations, Vertipedia is your "one-stop shop" for all things vertical lift.
Our latest featured aircraft for May is the Cierva W.11 Air Horse .
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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Data accuracy and completeness
Similar to most databases, Vertipedia will never be complete. The data available represents a 'snap-shot' in time. Users should always consider other resources, particularly high quality references (e.g. books, archival material, etc.) if they want to ensure the highest accuracy. Vertipedia provides a good starting point for such research but the VFS can never state, categorically, that the data for a particular subject is the most accurate or complete.
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