thanks jiml - that made a couple of points clearer, though there has always been some confusion in the use of the words group and category interchangeably for certification and performance purposes
"Paco, this contention is not correct (and if nothing else is taken from this post perhaps this will stick) helicopter are certificated in Category A or Category B; they are operated in Performance Classes 1, 2 or 3."
That's exactly what I said!
"In other words, the terms Category A and Category B (as opposed to Group A or B, or Class 1 or 2) are for certification purposes"
So what do people mean when they say Cat A performance?
phil
Last edited by paco; 9th Apr 2005 at 19:16.