Commonwealth parallel track
A British Airways A320 and a Singapore Airlines Boeing 777 overflying the Netherlands on a parallel track on 6 June 2013. Airbus A320-232 c/n 1829 G-EUUG of BA was flying at 37000 ft with a speed of 452 kts, operating flight BA850 from London Heathrow to Warsaw. The Boeing 777-212ER c/n 30874 (l/n 430) 9V-SVM was operating flight SQ305 from Heathrow to Singapore's Changi airport, flying at 31000 ft and a speed of 495 kts, so it was slowly overtaking the BA A320, in which it succeeded just over the Dutch-German border, whereafter the aircraft changed headings and continued in different directions.
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