Shadow photograph of wind tunnel test results, showing air stream from a 30-degree cone head model

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  Shadow photograph of wind tunnel test results, showing the air stream from a 30-degree cone head model

  Manuscripts

  Wind tunnel test results, showing air stream off 30 degree cone head model, Ballistics Research Laboratory. Note in the hand of Grace (Burke) Hubble: "Huntington Library."

  mssHUB 1044 (11)

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  Shadow photograph of wind tunnel test results, showing air stream from a 30-degree cone head

  Manuscripts

  Shadow photograph of wind tunnel test results, showing air stream off 30 degree cone head, Ballistics Research Laboratory. Note in the hand of Grace (Burke) Hubble: "APG Huntington Library Collection."

  mssHUB 1044 (10)

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  Shadow photograph of wind tunnel test results, showing air stream from a cylindrical model

  Manuscripts

  Shadow photograph of wind tunnel test results, showing air stream off cylindrical model, Ballistics Research Laboratory. Note in the hand of Grace (Burke) Hubble: "Huntington Library."

  mssHUB 1044 (13)

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  Shadow photograph of wind tunnel test results, showing air stream from a cylindrical model

  Manuscripts

  Shadow photograph of wind tunnel test results, showing air stream off cylindrical model, and determining minimum, Ballistics Research Laboratory. Note in the hand of Grace (Burke) Hubble: "Huntington Library. APG"

  mssHUB 1044 (14)

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  Shadow photograph of air shock waves off a 37 mm shell, at the U.S. Army Ballistic Laboratory

  Manuscripts

  Shadow photograph of test results, showing air stream off 37 mm shell, Ballistics Research Laboratory. Note in the hand of Edwin Powell Hubble: "Shadow photo by spark (exp. @ 1/1,000,000 second), 37 mm shell velocity about 2500ft/sec. Note shock waves in air skin friction along sides turbulence in wake." Note in the hand of Grace (Burke) Hubble: "EPH Huntington Library."

  mssHUB 1044 (19)