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