The submarine in war and peace; its developments and its possibilities (1918)
Lake, Simon, 1866-1945 · Philadelphia, London, J.B. Lippincott company · leaf 344
n which condition she can make aspeed of eleven knots, as her position No. 3, on the surfaceof the ocean. This increases the danger area to about threehundred and thirty square miles, as on diagram, positionNo. 3, about three times the danger area shown on positionNo. I, but as the area to be… … .J
Submarines (Ships)
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