Could anybody remember what fire suppressant/containment system was used on the R.A.F. AW 651 Argosy C Mk 1 fuel tanks?
I do remember a member of the Argosy world comparing the Herc to this ,unfavourably, in about 1970 but cannot remember the details.
(Pedantic bit so that some wag doesn't quote the old A.W. 66 Argosy Tri Motor)