What I cannot understand with all this is the notion that we didn't have the U.S experience of Vietnam to help us prepare our transport fleets. Surely the use of Nitrogen bottles to inert the Tornado fin tank was something which came from ground AAA fire research? Similarily pictures of Harriers/Sea Harriers returning from sorties over the Falklands with bullet holes in them should have atleast have promoted an understanding of the risks to fast jets let alone transport aircraft to groundfire.