In my UAS days in the late 60s, Port and Starboard were used for formation changes, but I seem to remember that GCA/PAR controllers used Left and Right.
I remember one of my friends wrote Port and Starboard on his white leather flying gloves!
Speaking of flying gloves, why did the RAF persist in using white gloves? They were particularly unsuitable for preflighting a Gipsy Major-powered aircraft! I think I went through a pair a year. Nowadays I have a pair of black USAF Nomex gloves. Much more practical.