Assumed Temp Charts

[mhecker]

ein paar sätze aus einem faa-dokument:

As explained in NPRM 93-8, the operator of a turbine-powered transport category airplane must determine that the runway being used, plus any available stopway or clearway, is long enough to either safely continue or reject the takeoff from a defined go/no-go point. The go/no-go point occurs while the airplane is accelerating down the runway for takeoff when the airplane reaches a speed known as V1.To assure that the takeoff can be safely continued from the go/no-go point, the length of the runway plus any clearway must be long enough for the airplane to reach a height of 35 feet by the end of that distance, even if a total loss of power from the most critical engine occurs just before reaching the V1 speed. This distance is commonly referred to as the accelerate-go distance.
In case the pilot finds it necessary to reject the takeoff, the runway plus any stopway must be long enough for the airplane to be accelerated to the V1 speed and then brought to a complete stop. This distance is known as the accelerate-stop distance.
The revised standards of Amendment 25-42 required the accelerate-stop distance to include two seconds of continued acceleration beyond V1 speed before the pilot takes any action to stop the airplane. the FAA also proposed to replace the two seconds of continued acceleration beyond V1 with a distance equal to two seconds at the V1 speed. The distance equal to two seconds at constant V1, while shorter than that resulting from the continued acceleration beyond V1 required by Amendment 25-42, is a distance margin that must be added to the accelerate-stop distance demonstrated during flight testing for type certification. The FAA intends for this distance margin to take into account the variability in the time it takes for pilots, in actual operations, to accomplish the procedures for stopping the airplane.

so, ziemlich viel text. ich glaube, man berechnet die strecke bis v1 + die stopstrecke und ergänzt dann die strecke von 2sec v1. dies wird so gemacht, da die entscheidung zum startabbruch eigentlich VOR v1 fallen soll.

also, weiterrechnen!

martin