Originally Posted by
Banana Joe
I don't recall PANS-OPS 2,5% MACG considering the engine out scenario. Too many variables, and like for engine failure procedures after take off, operators have to verify their performance capabilities and establish contingency procedures.
It does consider it. There is a note, however, stating that some aircraft might have problems achieving 2.5% at weights close to MTOW, but this is more problem at heavies where MTOW >> MLW:
6.1.7.3 Special conditions. It is emphasized that a missed approach procedure which is based on the nominal
climb gradient of 2.5 per cent cannot be used by all aeroplanes when operating at or near maximum certificated gross
mass and engine-out conditions. The operation of aeroplanes under these conditions needs special consideration at
aerodromes which are critical due to obstacles on the missed approach area. This may result in a special procedure
being established with a possible increase in the DA/H or MDA/H.
Just food for thought, if it didn't consider OEI scenario: which transport category aircraft in use today can't achieve 5% or even greater MACG in go-around configuration with two (all) engines at TOGA?