Ww2 footage mostly but that’s cause ww2 had aerial dogfights and the kinda vibe they were going for with the space combat. Plane footage from Vietnam is just carpet bombings, not very useful for stand ins for attack on the death star, maybe for alderaan but otherwise it wouldn’t be that useful.
Although it’s also worth noting that 99% of Vietnam’s air operations were ambushes against numerically and technologically superior planes and bombers using outdated Migs, and that kinda matches the vibe of thirty-odd stunt fighters going up against the Death Star.
Ww2 footage mostly but that’s cause ww2 had aerial dogfights and the kinda vibe they were going for with the space combat. Plane footage from Vietnam is just carpet bombings, not very useful for stand ins for attack on the death star, maybe for alderaan but otherwise it wouldn’t be that useful.
Although it’s also worth noting that 99% of Vietnam’s air operations were ambushes against numerically and technologically superior planes and bombers using outdated Migs, and that kinda matches the vibe of thirty-odd stunt fighters going up against the Death Star.