Departure Separation

Separate a departing aircraft from a preceding departing or arriving aircraft using the same sea lane by ensuring that it does not commence takeoff until:

1. The other aircraft has departed and crossed the end of the sea lane or turned to avert any conflict. (See FIG 3-12-1). If you can determine distances by reference to suitable landmarks, the other aircraft need only be airborne if the following minimum distance exists between aircraft:
   1. When only Category I aircraft are involved- 1,500 feet.
   2. When a Category I aircraft is preceded by a Category II aircraft- 3,000 feet.
   3. When either the succeeding or both are Category II aircraft- 3,000 feet.
   4. When either is a Category III aircraft- 6,000 feet. (See FIG 3-12-2.)

      

      

2. A preceding landing aircraft has taxied out of the sea lane.