Thanks for the info so far. The engine is in an Airtourer which is currently in Annex 2 on a UK CAA Cof A. The Type Certificate is held by the Airtourer Co-Op in Oz and I've asked them if anybody has done it down there. I guess it's a conversation wth the Belgrano if they have. Hatz I wasn't too sure about your reply. Did you suggest that it would be worthwhile?