B787 flight crew reported encountering wake turbulence departing WSSS/SIN in trail of an A380 that resulted in a momentary stick shaker.
Synopsis
B787 flight crew reported encountering wake turbulence departing WSSS/SIN in trail of an A380 that resulted in a momentary stick shaker.
Narrative
I was the relief Captain operating from WSSS to ZZZ. An Airbus A380 was cleared for takeoff in front of us. We were cleared for takeoff after a short pause on the runway. After liftoff; at 1;000 AGL; we entered a rolling wake turbulence then calm. Passing through at 2;300 AGL; we encountered a heavy wake that pitched the airplane nose up with NO ROLL. Our IAS was at 240 kts.; when the stick shaker activated for 2-3 seconds. We were still in takeoff thrust with flaps 5. Aircraft pitch was reduced with NO other incident. No one called Upset; but ALL EIGHT EYES were riveted on our flight path! At my urging; the flying Captain (PNF) reported wake turbulence encounter and we were vectored away from the A380. This was not a comfortable scenario. There were several heavy and super departures before we departed. The Flight Manual states the interval behind Supers is 4.5 miles. Perhaps the interval behind Supers and Heavies needs to increase to prevent this in the future. In my XX+ years of flying; I have never seen a shaker activation during a wake turbulence encounter before. In the future; I will advocate delaying at least 3 minutes before taking off.
Second reporter narrative
On departure we were given takeoff clearance after an A380. Approaching IBIXU; we encountered what appeared to be wings vortices turbulence from the prior aircraft. We had a momentary stick shaker. Our takeoff was near max takeoff weight. The stick shaker lasted not more than a second (I think) and I told the Controller that we wanted to deviate from the A380's path.
NASA callback
Reporter stated they were really surprised by the stick shaker; that continued for a good 2-3 seconds.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.