The Online Books Page

Books by Herbert W. Ridyard:

Books in the extended shelves:

• Ridyard, Herbert W.: The effect of a change in airfoil section on the hinge-moment characteristics of a half-delta tip control with a 60° sweep angle at a Mach number of 6.9 (National Advisory Committee for Aeronautics, 1954), also by David E. Fetterman, United States. National Adviosry Committee for Aeronautics, and Langley Aeronautical Laboratory (page images at HathiTrust)
• Ridyard, Herbert W.: Lift, drag, and static longitudinal stability data from an exploratory investigation at a Mach number of 6.86 of an airplane configuration having a wing of trapezoidal plan form (National Advisory Committee for Aeronautics, 1955), also by Jim A. Penland, David E. Fetterman, Langley Aeronautical Laboratory, and United States. National Adviosry Committee for Aeronautics (page images at HathiTrust)

Find more by Herbert W. Ridyard at your library, or elsewhere.