While I am not a professional pilot (yet), I'm not convinced by the BA spokesman on this one. I would have thought that if Concorde did take-off with a shortened range capacity then it would have been due to carrying less fuel. The main effect I see of the high temperatures is to increase take-off and landing distances. Higher temp means a longer take-off run for the same aircraft weight. If the temp is high enough to increase the required distance beyond what is available then less fuel (or passangers) can be carried. Anybody know what the take-off distance is for Concorde?
The only logic I see behind the spokesman words is that BA didn't want it reported that the aircraft is taking off with less fuel than normal so a bit of bs is spread around.
D