I don't recall military aircraft having civil VH registrations (Except the HP leased aircraft)?
Indeed, the
RAAF web site states:
"A distinctive numbering system was adopted by the RAAF Air Board in 1921, the year the Service was created. All aircraft since that year have been allotted the code letter 'A' followed by a number."
The web site quotes the DC2/DC3 as "A30"; Canberra as "A84"; Chinook "A15" and Herc "A97". When did the RAAF use civil registrations?