e mile to each inch of diameter. Thus the Dynamometers will indicate the pull required to draw The yard is entered through an archway which the models along at speeds accurately regulated and passes through the marine barracks. This body of measured by the apparatus. A building 500 feet long naval… … ORDNANCE STORES—WASHINGTON D.C. NAVY YARD. Annapolis in 1851. slow speed of the A squad of the models in the model tank will eliminate this influence, as the wave The cylindrical powder tanks shown in the cut are marines drilling forms the subject of one of the cuts. factor will be diminished in…
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