Personally, i think the Swift F.1 is fine, if a little over tiered, i think it should be 8.0
BUT its the the F.7 that needs the big changes.
IT is Arguable a Fake plane, The F.7s never received guns, and from what i can find, the space USED for the guns was filled with the Guidance equipment for the beam Riding Fireflash missile they were built to be tested with.
The F.7 IMO needs replaced by the Supermarine Swift F.4, which would be a faster, and more agile variant of the plane, (even more agile than the F.1 thanks to a modified tail). AND it gets 4 of the ADEN 30mm canons, Like the Hunters, instead of the 2 of the F.7 or F.1 Swifts.
And you get a Little more history that way, the F.4 was the MOST Produced variant of the aircraft, Though very few were kept as F.4s, Basically all of them were modified into FR.5 reconnaissance fighters.
The F.4 was also the fastest Jet Fighter in the world at the time it was built, Achieving a blistering 737 Miles per Hour, at SEA LEVEL. So at Altitude the aircraft could easily be super sonic, or atleast Push closer to the Mach 1 Barrier than the F.7 can, It can’t even get close without losing its wings. Unless on VERY certain maps and conditions, where it can actually go super sonic, but its wings snap immediately.
Just my thoughts.