3. Mariette DiChristina, "What Really Downed the Hindenberg," Pop.Sci., 251(5), 70-76 (Nov 97).Retired NASA engineer Addison Bain's archival and materials testing research reveals that flammables used on the Hindenberg's skin to protect agianst sunlight and moisture were responsible for the combustion which caused its destruction -- and also a similar fire in a helium-filled airship two years earlier. Curiously, this was already known from subsequent tests conducted by the Zeppelin Co., according to two 1937 letters that had heretofore been overlooked.
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