Luftfahrt Konvolut 10 Bände Lot n° 30

Convolute of 10 works (1 of which double) in 10 volumes. With numerous ill. and partly folded. Plates. 4°. 9 OBosch.-Bde. and 1 OLwd. in O-jacket (partly somewhat rubbed, 5 spines reinforced with canvas strips, mostly stamps on front covers). 1. Henschel Flugzeug-Werke A.G. Influence of the aileron on the critical speed of aircraft wings. (Kassel,) 1936.- Typescript. Stamped 'Strictly confidential' on first page. 2. Ders. plane calculations with consideration of the aileron.... (Kassel,) 1937.- Typescript. On first page with stamp 'Strictly confidential'. 3 Teichmann, A. Contribution to the calculation of aircraft spars subject to buckling. (Berlin,) 1931. revised version - typescript. With numerous deletions and handwritten marginalia. 1 plate and 1 illustration subsequently glued together and inserted, respectively. 4 Ders. construction and calculation of flutter-free aircraft. (Berlin, 1937) - typescript. 5. Lilienthal Society for Aviation Research. 4 booklets (1 of which double) on conference reports. Berlin, 1936-41.- Booklet of 1936 as typescript. 6. Jahrbuch der Deutschen Luftfahrtforschung. 2 volumes. Munich and Berlin, Oldenbourg, 1938 and 1940 respectively - Contains 1st supplementary volume to 1938 and 2nd airframe to 1940 yearbook.