Vertipedia is a product of the Vertical Flight Society. With data on 867 aircraft, 620 historical milestones, 567 people, and 395 organizations, Vertipedia is your "one-stop shop" for all things vertical lift.

1987 - First flight of the prototype (PP1) of the EH Industries EH101 Type Series

Our latest featured aircraft for October 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

Learn more...

Vertipedia notes are brief descriptions of how and why Vertipedia works the way it does. Check back often for the latest note, or view the complete list.

Entering text data

When entering text into any of the text fields (these are distinguished by the editing functions toolbar at the top of the field) the user should not add an extra line break between paragraphs (a new paragraph is simply the next line after the a line break is entered). This is because the displayed text automatically adds an appropriate line spacing for display). If an extra line break is added on entry this will show as a double line spacing on display.

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.

Select a module below to get started!