Hi, does the FMC somewhere give out a runway length value needed for takeoff based on the weight of the aircraft? Im asking because i tried to take off with a MTOW from El Alto just to test out if i would get any warnings, yet this did not happen...Thanks, Igor

Do a search for TOPCAT. It will calculate your takeoff and landing performance including assumed temps and derates. I dont fly without it. As far as I'm aware the aircraft only gives warnings to incorrect T/O configs when thrust levers 2/3 are moved beyond a certain position.not at home right now to double check but I Hope this helpsRob