Extracted from MATS, Pt 1, Sec. 1, Ch. 3:
Departures – Opposite Direction
3.54 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:
1. utilising an opposite-direction runway for take-off; or
2. landing on the same runway in the opposite direction, or on a parallel opposite- direction runway separated by less than 760 m.
3.55 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:
1. utilising an opposite-direction runway for take-off; or
2. landing on the same runway in the opposite direction; or on a parallel opposite direction runway separated by less than 760 m.
Crossing and Parallel Runways
3.56 When parallel runways separated by less than 760 m are in use, such runways are considered to be a single runway, for wake turbulence reasons, and the wake turbulence separation minima listed apply to landing and departing aircraft respectively.
3.57 The wake turbulence separation minima listed in paragraph 3.54 will apply to:
1. departures from crossing and/or diverging runways if the projected flight paths will cross; or
2. departures from parallel runways 760 m or more apart if the projected flight paths will cross.
Confusing. The paragraph about 'Crossing and Parallel Runways' makes reference to para. 3.54 - which seems totally irrelevant.
callum91: Your 3 minute separation sounds right, but I'm struggling to find where it breaks this down in the MATS.