Resistance of Transparent Plastics to Impact (1939)
NASA Technical Reports Server (NTRS) · leaf 27
Pig. 11 N.A.C.A« Technical Note No. 718 … Figure 11.- Cellulose acetate B2 with .22 caliber, iori£, lead-nosed bullet buried in it. A .32 caliber, S and W long,lead-nosed bullet was deflected from the sur- face within the area surrounded by the circle.
NASA Technical Reports Server (NTRS)
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