And where did you get that the Spitfire Mk XIV does not outclimb the Vampire?
It starts out at 5500 ft/min vs 4800 ft/min for the Vampire, and only goes below 4800 ft/min. at around 18 000 ft.
http://www.spitfireperformance.com/spit14climbchart.jpg
Congratulations Gaston, you've just proved your total inability to read a graph.
If you'd bothered to read it correctly, you'd see that the Mk XIV has a 4,700 ft/min rate of climb in the graph
as denoted by the line with the short dash, long line combination.
In comparison, the Hornet Mk I has the 5500 ft/min rate of climb,
as denoted by the solid black line.
No Vampire on that graph at all
Whoopsie daisy!
I think it was actually stated in the comparison that the Spitfire XIV outclimbed the Vampire.
Prove it.
Just for once…
Besides, nothing in the climb rate differences or the wingload differences explains the 25% gain per 360° that the Vampire enjoys in sustained low-speed turns, with a specified smaller turn radius achieved by the Vampire (NOT higher speed on a broader radius).
Gaston
Tempest V vs Meteor III trials also show that a jet can turn inside a prop and gain a firing solution in four turns.