Hi LONGTIMEINCX,
Yes, PAL340s which, as I remember, were -200 series aircraft - CX got the -300.
Error, in the perf data, I think - some 4-6 tonnes springs to mind.
.... and, without joking or exaggerating, the entire airport stopped to watch ! Subject of much banter with the fuel man, handling staff, cleaners etc etc prior to despatch.
It was like a Classic departure from runway 31 at Kai Tak in a typhoon using D4 bump thrust non-stop to Gatwick ..... only lower :-)