Naughty Tiddles said
They've always had a descriptive callsign.
I suppose he means like "Wombat or Stallion"
Descriptive indeed
The alphabetical 'rego's were released to the civil authority(mid 70's I think) as they were running out of there own rego's to allocate. The military then started using the Mission/Squadron/Task rootwords & numbers we are familiar with today.
Tipsy
