Gernsback, Hugo, 1884-1967, ed · New York : [s.n.] · leaf 9
e to use his surface speed, and below before he attacks, and, if he can make it, tered. It has been recommended by ma- the surface he has not sufficient speed to he will get within five to seven hundred rine experts that cargo vessels, whether overhaul the merchant ship. One or two yards. The… … Instead of Relying Entirely on the Human Factor in "Zig-Zagging" the Course of a Ship Attacked by a Submarine, the Automatic Elec- trical "Course Zig-2agger" Here Shown Is Proposed. Electric Motors Swing the Rudder to Port or Starboard As the Case May Be, These Course Changes Being Made…
