Keep in mind, Lucas watched a LOT of WWII Aerial combat footage and listened to a lot of radio chatter for those scenes. I'm sure that influenced things a bit.
I think you will find Mr Lucas grew up watching a lot of Flash Gordon movies and I'm pretty sure the 1969 film "Battle of Britain" was the combat feel he was trying to convey in the dogfight finale. Some of the references may indeed have no logical basis, but were there to sound cool and somewhat military. This is a space opera after all.