ATC IssuesA place where pilots may enter the 'lions den' that is Air Traffic Control in complete safety and find out the answers to all those obscure topics which you always wanted to know the answer to but were afraid to ask.
A heavy has just landed(09), we're next to take off but in opposite direction(27). Is there separation to be applied? Manuals talk about only if heavy did a go around or "low approach"..whatever that covers.
Also,medium behind a heavy, both take offs, can 5 mile in trail separation substitute the usual 2 mins? Cheers CC1
9.7 Departures – Opposite Direction 9.7.1 A380. A wake turbulence separation minimum of 3 minutes shall be applied between a Light, Small or Medium (Upper and Lower) aircraft and an A380-800 aircraft when the A380-800 aircraft is making a low or missed approach and the Light, Small or Medium aircraft is: a) utilising an opposite-direction runway for take-off; or b) landing on the same runway in the opposite direction, or on a parallel oppositedirection runway separated by less than 760 m.
9.7.2 Other aircraft categories. A wake turbulence separation of 2 minutes shall be applied between a Medium (Upper and Lower), Small or Light aircraft and a Heavy aircraft, and between a Medium (Upper and Lower) or Small aircraft and a Light aircraft whenever the heavier aircraft is making a low or missed approach and the lighter aircraft is: a) utilising an opposite-direction runway for take-off; or b) landing on the same runway in the opposite direction; or on a parallel opposite direction runway separated by less than 760 m.
The answer to this question lies - IMHO - in whether the flight paths are expected to cross. In the scenario as painted by the thread starter, no - therefore HD is correct. For an opposite direction go-around (as opposed to a landing) then clearly the flight paths will cross, there is the possibility of a VW encounter, and hence the requirement for VW separation to be applied. But, as a footnote, I find this section of MATS 1 to be badly written; I have come across a number of scenarios where departure VW is definitely an issue but which are NOT covered by the Holy Word. Therefore I return to the "are you certain that the flight paths will not cross?" point as the ultimate arbiter. If you cannot answer in the affirmative, then SOMETHING needs to be applied. Duty of care blah blah... And doubtless one needs to be able to justify that decision to the prosecution lawyer. "It's not in the book" is no defence and you'll see the writers of said book disappearing fast over the horizon.