Two aborted takeoffs in a row on the same flight!

[bubbers44]

The Boeing 727 had compressor stall procedures on cross wind take offs which allowed you to try again by first spooling up into the wind and then taking off. We did the two low speed aborts and went back to the gate following company procedure.

[Calmcavok]

The takeoff data isn't just calculated to get you airborne in the TODA, its also pretty damn important to clear obstacles as well in the takeoff path Engine out.
Therefore if I'm commencing my third attempt to takeoff someway down the runway with now invalid data I'm going to:-

1/ Vacate the runway and taxy back to the holding point
and 2/ re do the before takeoff checklist.

We are not paid to "guess"

What if the pilot had used intersection data, taken full length, and at the time of the final power application was still at or before the intersection that the takeoff perf had been calculated from?

[fmgc]

What if the pilot had used intersection data, taken full length, and at the time of the final power application was still at or before the intersection that the takeoff perf had been calculated from?

You are still changing your net take off flight path as you will be rotating earlier than you would have been.

So obstacles that are closer might now be in the net take off flight path that were not there if you had used the full length take off data.



I am no performance expert but I know enough to know that you should use the appropriate take off performance for the intersection that you are going to take off from.