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  • Type > Text (remove)
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  • Contributor > Department of Transportation (remove)
  • Date > 1967-xx-xx (remove)

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Folder, "Volume I, Documentary Supplements, First Annual Report, 1967," Department of Transportation Administrative History, Box 3 (Item)
  • on the best way of measuring visibility readings given a pilot on final ap­ proach to achieve with the ·least number of such readings an adequate representation of what the pilot will encounter at touchdown. • Convective-storm hazards: Continuation of research