Just a question that has been like a splinter in my mind...
In my airline,we tend to use improved climb with flex thrust quite often. but im just wondering whether its the same in other airlines or is it a "last option"?
it seems risky to me to be using it as it is absolutely high speeds for weights that we can use normal take off speeds. And based on the lift formula,it seems like at improve climb speeds,the aircraft wants to take off way way before V1 but we're practically keeping it on the ground.
And some excuses that i've heard is that they use improved climb at high flex temps to actually save fuel due to lower thrust settings....which seems absurd as once again...high speeds which are unnecessary and also...
lower thrust settings+longer time on ground VS high thrust+ less time on ground = same thing!
or am i wrong?
appreciate some words of wisdom here. personallly i'd rather do a take off with packs off and normal take off rather than improved climb.
example of a case i've seen...
take off weight = 69500
possible to do normal climb with TOGA for a weight of 69700 which speeds are around about 125++
pilot does improved climb with flex52 with speeds of 155++!
WHY?