Management of large ship during docking and manoeuvring operations, or in circumstances of emergency, demands prompt transmission of orders from bridge and reception of utmost clarity at working positions; in Pretoria Castle, requirements are met by installation of loudspeaking units on Master Communicator system, developed by Ardente Acoustic Laboratories, and comprising 17 substations, located in strategic positions in various parts of vessel; installation permits 2-way conversation.
Loudspeaking equipment in "Pretoria Castle"
Shipbldr Mar Engine-Bldr
Shipbuilder and Marine Engine-Builder ; 55 , n 479 ; p 683
1948
Aufsatz (Zeitschrift)
Englisch
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Union-castle liner "Pretoria Castle."
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