Lets keep the post on topic, SEPP you can lecture about the semantics of Regs and AMC, but as Bizjetjock points out 95% of operators will use the AMC guidance as an absolute minimum.
In response to the original posters question; the AMC details provide the answer. Performance limitations are the most obvious part of the AMC which will result in variation in the Category not just between operator but even between different fleets of a single operator at Farnborough. The original poster wanted to know why Farnborough's Category varies then I have provided a reasoned answer to why categories can vary.
Last edited by portsharbourflyer; 6th Jun 2020 at 22:05.
Reason: better phrasing