See also what's at Wikipedia, your library, or elsewhere.Broader term:
Filed under: Ducted fans|
Items below (if any) are from related and broader terms.Filed under: Vertically rising aircraft -- Handling characteristics
Help with reading books -- Report a bad link -- Suggest a new listing
Home -- Search -- New Listings -- Authors -- Titles -- Subjects -- Serials
Books -- News -- Features -- Archives -- The Inside Story
Edited by John Mark Ockerbloom (email@example.com)
OBP copyrights and licenses.