I remember last year on a BA flight from Singapore BA15 , 777 300 , before departure pilot advised we would stay on the ground 20mins in Singapore so that we would not arrive before 5am in Sydney , ie , departed 20 mins after scheduled dep time , Pilots must have checked tail winds on the flight route , as we landed 505am in Sydney , coming in from the south over Royal national park , and Kernell etc .
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