Deltahotel
I would generally agree however..."in this mode the A/T mode is EPR controlled at the derated T/O figure (1.4 - 1.5 ish) and the ac will accelerate level like a scalded cat."....is this always true?
If I take off with full power (say due MEL reqrmnts) get VERY early alt cap, then select CLB as you describe, the very large redution in power seems to leave the aircraft pitching for an ALT CAP profile it can no longer achieve.
Suddenly, rather than the excess energy situation you describe, there's not enough! You already have full CLB EPR selected, so the autothrottle can't help you, and the autopilot is pitching for a level of that's too far away now you no longer have T/O power....
Anyone else seen this? Is there anything that can be done other than disengage the autopilot and start again?
Diesel