Vertipedia is a product of the Vertical Flight Society. With data on 862 aircraft, 613 historical milestones, 477 people, and 394 organizations, Vertipedia is your "one-stop shop" for all things vertical lift.
Our latest featured aircraft for December 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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Countries for Biographies
Biographies have two fields, the country of birth and the country of primary activity (as people move during their career). The reason for includng both fields is to avoid the confusions that could occur if a single field 'Country' was included. The country of birth is a fact. The country of primary activity requires subjective assessment. The Vertipedia team has made an assessment for the country of primary activity but we welcome feedback if there is any disagreement.
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