Reflection plotter developed by Raytheon Manufacturing Co, Waltham, Mass, used in conjunction with shipboard radar system provides radar with visual course and speed-recording feature that permits navigator to keep track of all vessels within danger range, and to plot course and progress of those likely to cross, meet, or overtake him.
"Crystal ball" for navigators helps avoid collisions
Mar Eng Shipg Rev
Marine Engineering and Shipping Review ; 57 , n 4
1952
2 pages
Aufsatz (Zeitschrift)
Englisch
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