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Reduction of hinge moments of airplane control surfaces by tabs
This report presents the results of an investigation conducted in the NACA 7 by 10-foot wind tunnel of control surfaces equipped with tabs for reducing the control forces or trimming the aircraft. Two sizes of ordinary ailerons with several sizes of attached and inset tabs were tested on a Clark y wing. Tabs were also tested in combination with auxiliary balances of the horn and paddle types, and with a frise balance aileron.
Date:
February 5, 1935
Creator:
Harris, Thomas A.
System:
The UNT Digital Library
A Flight Investigation of the Spinning of the F4B-2 Biplane with Various Loads and Tail Surfaces
"A flight investigation of the spinning of the F4B-2 single-seat fighter airplane was made for the purpose of finding modifications that would eliminate dangerous spin tendencies exhibited by this type of airplane in service. The effects on steady spins and on recoveries of changing the loading, enlarging the fin areas, changing the elevator plan form, and raising the horizontal surfaces, were determined" (p. 413).
Date:
February 12, 1935
Creator:
Scudder, N. F. & Seidman, Oscar
System:
The UNT Digital Library