Wellconcerned
All interesting but I can assure that the RAAF had an F18 on CAP whenever all of the heads (and the Queen) were congregated at CHOGM on the Sunshine Coast in 2002 including up to late at night.
When Bush can to Canberra a few years ago - they put an F18 up on CAP at that time as well as putting in a navy Seaking to follow the motorcade.
Cheers