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Calculation of wing spars of variable cross-section and linear load (1925)
NASA Technical Reports Server (NTRS) · leaf 5
N.A.C.A, Technical Memorandum 3So.305 Figs.1,2 & 3. … Fig.2 MO Theoretical loads Bending moments Fig.3 IV IIINASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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