Structures of Thin Sheet Metal, Their Design and Construction (1928)
NASA Technical Reports Server (NTRS) · leaf 23
—2JSLr Figs. N.A.C.A. Technical Memorandum No.490 1,2,3,4,5,6,7,8 & 16 … Fig.l Sheet metal girder. i, a-Aa iff?tf MM f f ( M Mlft "1 6, ^ 4 a(l+f) la1 ^-v i r a p Fig.4 Fig.6 Fig.5 Fi£«? Fig.8 Fig.16
NASA Technical Reports Server (NTRS)
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