Options 770,
priceless story by the way on your Italian adventures. Funnily enough I was contacted recently by an ex-USAF Sgt would told me of a similar story involving the fire guard dumping a load of foam into the intake during a B-57A startup...as you may know, theirs made even more cart smoke than the Avon. From what I've read this was not uncommon in the early days of the US Canberra.