Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 100
his form gives it the strengthneeded. When the submarine runs on the surface it isdriven by oil-engines with a speed ranging aroundfifteen knots. When the sub, as its crew callsit, dives and runs submerged, it is propelled byelectric motors, which are fed by storage-bat-teries. At target-practice… … A SI 11MI,I<(;1N<; TlisT. 800 tons displacement when submerged, be about250 feet long, and will have a speed on thesurface of about nineteen knots and a maximumspeed below of nearly fourteen knots. Thesubs of this type will cost $1,200,000, without 630 OUR UNDERSEA FIGHTERS [May, figuring on…
Children's literature
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