Figs. 1,2,3,4,5 N.A.C.A. Technical Memorandum No. 815 Figure 2.- S.E.C.A.T. gyroscopic rudder control. Servo - control 'Z QE Figure 1.- Principle X of directional gyroscope, Servo-motor … Oil pump Figure 3.- Assembly sketch of Sperry stabiliter. H, climbing knob; G, banking knob. (For other references see text). oil From L'A&r on o u i/oue £jevofor Figure 5.- Sperry A valre. ssed otr Elevaior v Comp re Figure 4.- Smith rudder and elevator control.
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
