1. Aerodynamics of a tilting ducted fan configuration;Paul;NASA TN D-785,1961
2. Aerodynamic loads on an isolated shrouded-propeller configuration for angles of attack from -10° to 110°;Grunwald;NASA TN D-995,1962
3. Performance characteristics of a 4-foot-diameter ducted fan at zero angle of attack for several fan blade angles;Kennetb;NASA TN D-3122,1965
4. Wright, Ducted fan design, Millennial Year Edition;Piolenc;Volume,2001
5. Inflatable wing leading edges for high lift and deicing, NASA Tech Briefs;Kenneth;Jan.,2000