According with DOC 4444 (ICAO), a wake turbulence radar separation minima of 9,3 km (5,0 NM) shall be applied when a:
Domanda 278, Operational Procedures - ATPL - Airline Transport Pilot license
| HEAVY aircraft is crossing behind a HEAVY aircraft, at the same altitude or less than 300 m (1 000 ft) |
| LIGHT aircraft is crossing behind a HEAVY aircraft, at the same altitude or less than 300 m (1 000 ft) |
| MEDIUM aircraft is crossing behind a MEDIUM aircraft, at the same altitude or less than 300 m (1 000 ft) |
| LIGHT aircraft is crossing behind a MEDIUM aircraft, at the same altitude or less than 300 m (1 000 ft) |
