"Bart" wrote in message
...
You are the master of a sailing vessel crossing
a traffic separation scheme. Should you:

a. Cross it at right angles with your ground track?
b. Cross it at right angles with you water track?
c. Cross it at right angles to the current?
d. Give up and go back to the yacht club for a shot of whiskey?

Cross it to spend the least amount of time in the zone.