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B777-200 pilot reported encountering wake turbulence after takeoff from egll in trail of a B747. Pilot commented he felt separation standards were not followed by ATC.
| Attributes | |
| ACN | 1189299 |
| Time | |
| Date | 201407 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | EGLL.Airport |
| State Reference | FO |
| Aircraft 1 | |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | B747 Undifferentiated or Other Model |
| Flight Phase | Takeoff |
| Person 1 | |
| Function | Other / Unknown |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Published Material / Policy Inflight Event / Encounter Wake Vortex Encounter |
Narrative:
[We were] given takeoff clearance approximately 30/35 seconds after a heavy B747. [We] delayed takeoff for approximately 30 more seconds. Wind report was 280/7. Rough ride after takeoff 300 ft to 1;300 ft. [We] reported event to egll tower. I thought egll provided a 1 minute minimum delay interval between heavy aircraft. They didn't. [They] should consider longer delays when winds are calm or straight down the runway.
Original NASA ASRS Text
Title: B777-200 pilot reported encountering wake turbulence after takeoff from EGLL in trail of a B747. Pilot commented he felt separation standards were not followed by ATC.
Narrative: [We were] given takeoff clearance approximately 30/35 seconds after a heavy B747. [We] delayed takeoff for approximately 30 more seconds. Wind report was 280/7. Rough ride after takeoff 300 FT to 1;300 FT. [We] reported event to EGLL Tower. I thought EGLL provided a 1 minute minimum delay interval between heavy aircraft. They didn't. [They] should consider longer delays when winds are calm or straight down the runway.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.