Information obtained from airplane flight tests in the year 1927-1928 (1929)
NASA Technical Reports Server (NTRS) · leaf 26
N.A.C.A. Technical Memorrrindum No.535 Figs.1,2,3 Fig.l Changing the baJance by bending the elevator. Fig. 2 Changing the balance by wa^rping the elevator. … Fig. 3 BaJa^nce variation by decree.sing the doTvnvTash in center of wing.
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
