The abbreviation C/S stands for Course and Speed in the military field, especially in the US. You can find more abbreviations starting with C here. Also take a look at our list with military acronyms.
The Movement of the Target
Course and Speed describe the movement of a contact: the direction in which it moves and how fast. C/S appears in reconnaissance reports and tactical evaluations – the two values from which the future position is calculated.
Why Course and Speed Matter
Who knows the course and speed of a ship or aircraft, can predict where it will be in ten minutes: the basis for every engagement decision and every interception course. Combat systems calculate with C/S automatically – but the term comes from the era of manual plotting.
C/S appears in this meaning constantly in naval and air tactical documentation. It belongs to the classic vocabulary of the operations centers – the two numbers that describe the movement on the plotting table.
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