What is the thought process behind performance categories A,B and C?

I know they were done based on MTOW 5700 kg, 9 pax and engine drive.

I understand the table of classification, but I would like to know the thought process behind that. No ATPL book has explained it in a good way. Thanks in advance.enter image description here

  • $\begingroup$ I believe that some apparently random breakpoints were created due to specs and capability of aircraft in common use at the time. $\endgroup$ Feb 9, 2022 at 15:32
  • $\begingroup$ I would like to know the background and why it is the way it is. Thanks. $\endgroup$ Feb 9, 2022 at 15:43
  • 1
    $\begingroup$ Understood, if I knew more details I would answer. Sorry! I’ve read somewhere, (maybe here) that the weight or passenger count of the popular DC3 formed the basis of a category break decision. Have you tried searching here or elsewhere? Maybe my comment will prove a clue to a keyword search that gets you to an answer… $\endgroup$ Feb 10, 2022 at 2:20
  • $\begingroup$ See this question and answers, perhaps it answers yours $\endgroup$
    – DeltaLima
    Feb 26, 2022 at 22:18
  • $\begingroup$ Please include the jurisdiction you are asking about. ABCD[E] performance categories are used entirely different in the USA and designate the design speed ranges for instrument approach minima, totally independent of aircraft mass. $\endgroup$
    – Max Power
    Mar 16, 2022 at 21:51


You must log in to answer this question.

Browse other questions tagged .