# DRA and DRT Systems

 What CKTs does the DRA combine to determine and indicate on appropiate counters, the total distance in a north/sought and east/west direction? Underwater LogCKT LC What CKT provides an input to the distance converter? CKT Y What component(s) does the distance motor drive in the DRA? Total miles counterComponent disks The north counter counts _____ for north, and _____ for south. Up for northDown for south The east counter counts _____ for east, and _____ for west. Up for eastDown for west What CKT provides an input to the ships course crank-arm mechanism? CKT LC What is the output of the DC stepping transmitters in the DRA? Proportional to ships speed in north/south directionProportional to ships speed in east/west direction What component in the ships course crank-arm mechanism receives the ships course input? Course receiver What is energized when the brush rigging and split-ring assembly make contact? Follow up motor What is the CKT designation for the dead reckoning system? CKT TL What is a direct course that is north, south, east or west? Cardinal course What is the course called that is northwest, northeast, southwest, southeast? Inter-cardinal course What repositions the roller carriages on the guide rods? Crank-arm mechanism What provides a graphical plot of own whips travel, and operates dials that indicate latitude and longitude? DRT How many tracking mechanisms are there in the DRT? 4 What are the modes of operation for the DRT? Standard200 YDS per inch When is the latitude and longitude switch ('T' siwtch) used? Set to the proper quadrant of the earth in which the ship is operatingChange it when you cross the equator or meridians so the dials will move in the proper direction When is the component interchange switch ('Z' switch) used? Orients north in two different directions Where is the range bearing projector mounter? On the pencil carrier Where does the DRT receive input from? DRA AuthorCVN68 ID166797 Card SetDRA and DRT Systems DescriptionAdvancement Updated2012-08-21T03:26:18Z Show Answers