Thanks for that Chief Galah, a lot of "experts" reckon that Bizjets didn't exist. We travelled from Essendon to Devonport on the Metro II VH-BIS in about 1980, and I was allowed to sit in the co-pilots seat. The Captain was Allen Walker who later worked for Kendalls on the Metro and Saab out of Melbourne for many years. Incidentally in those days the Metro's and Bandeirantes were flown single-pilot on RPT operations.
Thanks for the info on the navaids.
Did Essendon have a VOR as a primary navaid, or was it still the good old VAR?