CFJ, a Beech 55, was the aeroplane Civil used to do instrument rating training in. I remember Jock, Peter, Ian and Russ were there in Sept 1969.
At that time there was another Baron away in western Victoria doing cloud seeding.
I noticed I did circuits at MB at night in Sept using flares. We had to call the flight off after 30 minutes as the flares were being blown out by the south-westerly.
I don't know if CFJ did any cloud seeding although it was well equipped for flight in icing conditions.