Sounds like the older kit then - I think I last saw that one about 35 years ago. Do the pilot figs look like they're undersized, hunched in the seats with the right arm and the right leg extended forwards? That would be an indicator of the old tool kit, along with (I think) movable ailerons and elevators.
EDIT: PS: I believe the newer tooled kit includes a bomb-bay interior - the older kit does not.