It should not be overlooked that personal callsigns were not the catchy nicknames they have become today. Rather back in the day, they were a necessary and effective means to prosecute aerial combat.
Reinventing and improving the famous and very successful
Thatch Weave tactics of WW-II,
Loose Deuce tactics involving combat spread were reborn for air-to-air combat in Vietnam. The early Top Gun devised and promoted these newer tactics that included essential special communication between aircraft, including callsigns.
Crisp and precise communications were essential to the effectiveness of mutual combat support, especially where the "tactical lead" could easily become the CO's nugget JG wingman, directing his skipper on how to maneuver, instantaneously without hesitation.
Our squadron had an airborne callsign of "Switchbox" (we shortened it to "Switches"). But with sometimes four separate Switchbox sections airborne simultaneously in different areas and maybe on the same freq., if somebody broadcast, "Switches break port!" You would have 6 aircraft breaking unnecessarily to port instead of the one Switchbox intended.
Therefore, each section airborne within our squadron had to have its own separate callsign. Perhaps a personal one.
And of course, each flight lead would use his personal callsign for his respective two-plane section or four-plane division.
As a wingman if I gained the tactical lead, I could transmit to the CO, "Hammer", (his callsign) port tac now!" And he – and only he - would immediately break port without hesitation. It was how we trained. And vice versa – "Hammers break starboard!" And I would, immediately! Just like close order drill on the grinder.
But on the ground, he was always, "Skipper" and never, ever "Hammer."
(And never ever in enemy territory transmit "Skipper" or "XO" unless you want him to become an enemy, high-value target!)
Indeed, although long retired and at the same retired rank, I still call my former skippers "Skipper" as much as I do their old personal callsigns (except for the most colorful ones.)
For us air-to-air fighters, personal callsigns were a tactical necessity!
But we always later laughed as the callsign phenomena spread (unnecessarily) to attack drivers, and later apparently, throughout the Nav. (A result of that 'movie' no doubt.) I guess it just expanded to become fun, and a fun tradition. And nothing wrong with that.
Nevertheless those other-than-tactical-fighter callsigns are really only fun nicknames; not true combat tactical callsigns as initially intended and effectively used back in the day.
"Cats, cross-turn, now!" ...... "Two!"
"Cats, RTB, to the barn, and a brew debrief." ........... "Two!"

"Cats. Buster!" ............"Yehaww!!!!!!!"


