Heinkel HE 70 commercial airplane (German) : a seven-seat cantilever low-wing monoplane (1933)
NASA Technical Reports Server (NTRS) · leaf 7
N.A.C.A. Aircraft Circular No. 183 Pigs. 2f3t4 Figure 2.-Three-quarter rear view of the Heinkel He 70 connnercial airplane. … Figure 3.-The Heinkel He 70 in flight with landing gear drawn up. Figure 4.-Close-up view showing doors to cabin and cockpit.
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
