dervish:- "You only have to look at the Wg Cdr Spry stickie thread to see very few in MoD are interested or able to answer valid questions."
Indeed. It is as though some think that they can learn a foreign language by merely studying a dictionary in that language. When they find that they can't they then change the meanings of the new words they have learnt to suit their purposes. In other words, pure gobbledygook. It would be amusing and entertaining, as Air Clues clearly tries hard to be, if it were not for the deadly seriousness of mangling the process of Air Safety thus.
Bubblewindow, worry not for it was not you at fault but I. At least you are interested in promoting Flight Safety, a rare trait hereabouts.