Originally Posted by
yoko1
Define "manoeuvre stability" as it applies to Part 25 certification requirements and I might better be able to address your question.
No, your answer was perfect, you don't quite understand manoeuvre stability and how it may differ from longitudinal static stability.
But, I am at a total loss at how a situation where an aircraft is noted, by the pilot, to have stick force lightening, while it is approaching the stall, with changing speed, alpha, pitch rate, elevator angle, etc, etc and determine that is a static stability problem. The aircraft is not static, it is manoeuvering.
The problem with FAR 25 and the AC's is that the information that you are seeking may well be elsewhere.
But you could try FAR 25.143, and review the guidance material of AC 25.7d for 25.143 and 25.255.