Truly amazing and very beautiful rainbow contrails by a Qatar Airways Boeing 777

Qatar Airways Boeing 7772DZ(LR) Reg. A7BBG as flight QR921 displays some truly amazing and very beautiful rainbow contrails as she transits over Brisbane, Australia. This has to be one of the most spectacular rainbow contrails I have yet seen with a B777 The seeing conditions were just about perfect on the day, being in Winter with slightly cooler conditions and little air disturbance looking directly upwards to 9. 3 km. The video sequence was captured in both real time and slow motion sequences. T