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Gulfstream V first officer reported requesting a vector from ATC to avoid a wake turbulence encounter in his climb out.
| Attributes | |
| ACN | 1526479 |
| Time | |
| Date | 201803 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZBW.ARTCC |
| State Reference | NH |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Gulfstream V / G500 / G550 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Climb |
| Route In Use | Vectors SID HNSCM2 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | B747 Undifferentiated or Other Model |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 38 Flight Crew Total 3600 Flight Crew Type 750 |
| Events | |
| Anomaly | Deviation - Track / Heading All Types Inflight Event / Encounter Other / Unknown |
Narrative:
During our climb out from the boston area; while crossing approximately FL350; I noticed a very 'pretty' contrail/wake turbulence formation. While in awe; I took a couple of pictures of the formation. Our path seemed to be crossing the path of the contrail; but as we continued our climb; we joined an airway (I believe it was Q448 after baf VOR); which lined us right under the contrail. Immediately I referred to the wind vector on our mfd which stated 1 knot. I called ATC asking about the traffic that was around 30 nm ahead of us; they replied it was a 'heavy 747'. Quickly I advised the PF that we needed deviation to prevent the wake turbulence encounter and promptly requested a right heading deviation to remain clear of wake turbulence as the PF concurred with the decision. ATC cleared us to our requested heading for our climb. Once above the contrail formation; we were cleared to fly direct on our route. I believe this scenario by itself might not be of such importance; as we acted properly; but this issue might be a more common occurrence due to the modern navigation systems. Increasing traffic; bettering of navigation systems and 'tightening' of air routes put more airplanes closer together and in a higher potential of wake turbulence encounter.
Original NASA ASRS Text
Title: Gulfstream V First Officer reported requesting a vector from ATC to avoid a wake turbulence encounter in his climb out.
Narrative: During our climb out from the Boston area; while crossing approximately FL350; I noticed a very 'pretty' contrail/wake turbulence formation. While in awe; I took a couple of pictures of the formation. Our path seemed to be crossing the path of the contrail; but as we continued our climb; we joined an airway (I believe it was Q448 after BAF VOR); which lined us right under the contrail. Immediately I referred to the wind vector on our MFD which stated 1 knot. I called ATC asking about the traffic that was around 30 nm ahead of us; they replied it was a 'Heavy 747'. Quickly I advised the PF that we needed deviation to prevent the wake turbulence encounter and promptly requested a right heading deviation to remain clear of wake turbulence as the PF concurred with the decision. ATC cleared us to our requested heading for our climb. Once above the contrail formation; we were cleared to fly direct on our route. I believe this scenario by itself might not be of such importance; as we acted properly; but this issue might be a more common occurrence due to the modern navigation systems. Increasing traffic; bettering of navigation systems and 'tightening' of air routes put more airplanes closer together and in a higher potential of wake turbulence encounter.
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.