Learnard H. H.

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Learnard
First Name
H. H.
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  • Working Paper
    Twenty-four (24) man-hour test of Alvin's environmental system
    (Woods Hole Oceanographic Institution, 1964-11) Learnard, H. H. ; Marquet, William M. ; McCamis, Marvin J.
    ALVIN's specifications call for a 48 man-hour environmental system capability. To check this, a 24 man-hour test was run as follows: Two successive test periods of six (6) hours each with a two (2) man crew inside the pressure hull. The break after six {6) hours was solely to change the crew. It was felt that this 24 man-hour exercise would be adequate to judge the system's 48 man-hour capability, particularly since one cannister of LiOH was used, and the submarine will normally carry two {2).
  • Working Paper
    Electrical and pressure tests of Alvin's electrical through hull penetrators
    (Woods Hole Oceanographic Institution, 1964-11) Learnard, H. H. ; McCamis, Marvin J. ; Swinhart, O. L.
    Our objective was to investigate the mechanical and electrical integrity of the hull penetrator assembly, in its eighteen (18) ten 910) amp single lead configuration, as designed by Litton Industries for the ALVIN. The results indicated a few minor refinements must be made to the penetrator before final acceptance of this hardware.