Departure seperation
 

When departing non heavy’s behind heavy jet aircraft do you use 5 miles versus two minutes in a radar enviroment? If you are applying miles in trail versus two minutes is it the pilots responsibility to request the time parameter versus mileage prior to taking the runway?:ugh:

If its medium behind the heavy, then the separation that is applied is due to wake turbulence - so a minimum of 2 minutes. This cannot be reduced by using 5 miles in trail and that is for departure sep where WT isn't an issue.

If a captain wanted more than 2 minutes behind a departing aircraft of a higher category than their own (except S following M) then they should request with the tower - preferably before lining up!