Vertipedia is a product of the Vertical Flight Society. With data on 865 aircraft, 620 historical milestones, 525 people, and 395 organizations, Vertipedia is your "one-stop shop" for all things vertical lift.
Our latest featured aircraft for July 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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In Vertipedia an aircraft has both a primary and secondary designation. Normally, the primary designation will be the alphanumeric and the secondary designation will be the name (e.g. UH-60A Black Hawk). Not all aircraft follow this scheme. The primary designation should also be the part of the designation that an aircraft is normally known by (which might be a name), normally the operator given designation. An alternative designation can also be added (in brackets) (e.g. a company model name).
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