Thanks Guys,
The reason for the question is that I am aware of the RAF and Army duplication on this one. I was wondering if the RAF had 'forgotten' that these Sqn numbers had passed to the Army when they decided to re-issue them.
I know that 663 VGS when compared with 663 Sqn for example has just about sufficient to discriminate them but is there, or has there ever been, a need to deconflict sqn numbers between the three services or is duplication not considered to be an issue?
HEDP