TCAS RA at Aircraft's Certified Ceiling

[PEI_3721]

bflyer, the figures that I quoted were approximate, I do not know for sure that theyapply to all altitudes.

The Eurocontrol hosted document Operational use and Pilot training guidelines indicates that the maneuver requirements assume increments between 1/4g to 1/3g (1.25 – 1.33g) depending on the alert, and that the required VS is achieved in 2.5 sec; the information suggests that these apply at all altitudes. The technical information in this document should be crosschecked with the latest ACAS technical spec as some performance aspects may have changed with recent updates.

ACAS Training materials.