I believe that Robert Johnson was describing the climb comparison after a dive stating that it could outclimb a spit if both entered a zoom climb. His definition of "outclimb" was not which airplane climbed the fastest, per se, but which climbed the highest during the zoom. The 7 ton Jug had an obvious advantage in inertia which could be used to great effect in the vertical fight. A pure E-fighting tactician that Bob Johnson!
MiG