The submarine in war and peace; its developments and its possibilities (1918)
Lake, Simon, 1866-1945 · Philadelphia London : J.B. Lippincott Co. · leaf 313
ifPfiJi … POSSIBILITY OF DEFEATING SUBMARINE sound, while no surface ship can come within the zone ofher receiving apparatus without betraying its presence. Submerged Sound Detectors.—It has been stated thatsound detectors connected to shore stations have been ableto detect submarines when passing in their…
Submarines (Ships)
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
