Originally Posted by
TangoAlphad
The problem is there is a million variables to take into play.. thrust derate / assumed temp / company V1 policy etc however at a quick play..
Boeing 737-800 Short Field Performance
LGW EGKK 26L Calm Wind Isa Day
62000kg
Flap 30 Vref = 143kts
Take off: 22'000 lbs thrust de-rate, assumed 44°c with no improved climb gives at Flap 5 Vr 136.
Improved climb and Flaps 1 = Vr 149.
Interesting, in a bad way, for my theory. However, it’s interesting you mention the short-field performance 737...as I was basing my assumption on an airfield with a considerably shorter runway than EGKK...