Always wondered about the truth of our performance calculations wrt the real world.
In my long-gone B737-200 days, I sometimes flew with a colleague who had been on the Trident with BA. He said, with some feeling, that the Trident in hot weather could either turn or climb, but not both, with all 3 Speys working as advertised. It seems you are not the only one who had doubts about meeting the performance requirements.