I recall a show where a sole pilot would fly a fighter/mech(a) through various patterns under the directions of a base/station commander. I can't remember the English name for it, and don't have any idea what other names it might have gone under. Sorry.
The pair have a semblance of the old Robotech/Macross boss/hero feel about them. The base commander looked a lot like the original Robotech captain (Henry J. Gloval) if memory serves, even down to the 'acting' and mannerisms.
As to the patterns, they would resemble or actually be letters of the alphabet, the fighter/mech(a) would split up into parts (top/bottom or sides, etc) and then recombine at different angles/speed to, in effect, upgrade itself and gain new abilities to battle new enemies.
Examples would be letters like V, P, T, N and others, where parts of the fighter/mech(a) would start at the ends of the letter, like V, and meet in the middle, or the T-manoeuvrer I remember fondly, as the pilot couldn't complete it because the power require to re-join the parts and force-fly down the straight part of the imaginary T was too great. It had to be done while battling a boss and using the explosive energy of the enemies' guns/bombs to help in completing the manoeuvrer.
It was on TV, yes good old analogue TV, some time in the mid 80s-90s, although might have been made earlier as it came from overseas.
I have googled and googled, but this specific one seems to be buried real deep and as I can't even remember the name of the series, actors, or parts of it I'm stuck. Which is why I ended up here.
And yes, I have trawled through the questions and tags here as well to try and find something similar. No luck.