For real navigation this would be more realistic:
to proceed from one relative position to another on a specified course, a specified speed for a specified time.
And not proceed from point A in the world to point B in the world. That is cheating!
Expl: u-boat is on course 205° true. The helmsman is ordered to steer course 182° using a speed of 12 knots en route, for 3 hrs 20 minutes. Then he is ordered to steer a course of 205, speed 11 knots for 4 hrs 11 minutes etc. etc.
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Robert Schmidt, LTJG
U-43
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