I see too many comments like
Especially in hot conditions with an underpowered aircraft,
I don't believe for a second that an OAT of 50C has any effect.
Off course at max TO weights and with an engine inop, performance is affected but with 2 engines operating and at typical landing weights there is so many power in a heavy twin that it is in fact more a challenge to control your aircraft then a worry to have not enough performance.. even at 50C!
I believe a single TOGA push gives you 2000FPM, whether it is -10C or +50C..
Any 773 driver cares to comment?