Don't get ya tits in a tangle. This is an internet forum isn't it? Read the bottom of the page!
Yes I am a maintainer myself of 20 odd years. The point that was brought up was "is this really a question that could be answered?"
Are the airfoils used for modern helicopter rotor blades symmetrical or un-symmetrical.
It would appear to be a question that is asked by the CAA. Just what is the point?
Does it refer to the fleet in general or those in current production?
How long is a piece of string? Seems to be Belgrano-speak.