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1 plotting
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Automatic Radar Plotting Aid — A maritime radar with Automatic Radar Plotting Aid (ARPA) capability can create tracks using radar contacts. The system can calculate the tracked object s course, speed and closest point of approach (CPA), thereby knowing if there is a danger of… … Wikipedia
History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… … Wikipedia
Rangekeeper — Rangekeepers were electromechanical fire control computers used primarily during the early part of the 20th century. They were sophisticated analog computers whose development reached its zenith following World War II, specifically the Computer… … Wikipedia
Chief mate — The Chief Mate is customarily in charge of the ship s cargo and deck crew. General Other names : Chief Officer, First Mate, First Officer. De … Wikipedia
Third Mate — Infobox shipping job name = Third mate othernames = Third officer photo = Life vest.jpg photo department = Deck department licensed = Yes epoch = location = watch at sea = Mate on watch watch at sea time = 8 12, 20 24 watch in port = Mate on… … Wikipedia
Chief Mate — Infobox shipping job name = Chief Mate othernames = Chief Officer, First Mate, First Officer. photo = Chief mate cargo handling.jpg photo cargo and deck crew. department = Deck department reports to = Captain. licensed = Yes epoch = location =… … Wikipedia
Second Mate — Infobox shipping job name = Second mate othernames = Second officer photo = Sekstant.jpg photo department = Deck department licensed = Yes epoch = location = watchstander = watch at sea = Mate on watch watch at sea time = 00:00 04:00, 12:00 16:00 … Wikipedia
Operations room — Plan position indicator (PPI) display showing polar display and radar sweep. A real radar display would show hard terrain features and look recognizably map like, and from the sea, match well with land features of local nautical charts matching… … Wikipedia
Automatic Identification System — The Automatic Identification System (AIS) is a system used by ships and Vessel Traffic Services (VTS) principally for identification and locating vessels. AIS provides a means for ships to electronically exchange ship data including:… … Wikipedia
International Regulations for Preventing Collisions at Sea — The International Regulations for Preventing Collisions at Sea 1972 (COLREGS) are published by the International Maritime Organization (IMO), and set out, inter alia, the rules of the road or navigation rules to be followed by ships and other… … Wikipedia
Modification and Replacement Parts Association — This article is about the aircraft parts trade association. For the radar plotting aid see Mini Automatic Radar Plotting Aid. The Modification and Replacement Parts Association is the Washington, D.C. based trade association that represents… … Wikipedia