As far as how competitve a tempest would be here's the RAE assesment against the spit 14
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Brief Tactical Comparison with Tempest V
Range and Endurance- Rough comparisons have been made at the maximum cruising conditions of both aircraft. It is interesting that the indicated airspeed of each is about 280 mph and the range is about identical, both with full fuel load (including long-range tanks) and without (also no nose-tank-Tempest).
Maximum Speed- From 0-10,000 feet the Tempest V is 20 mph faster than the Spitfire XIV. There is then little to choose until 22,000 feet, when the Spitfire XIV becomes 30-40 mph faster, the Tempest's operational ceiling being about 30,000 feet as opposed to the Spitfire XIV's 40,000 feet.
Maximum Climb- The Tempest is not in the same class as the Spitfire XIV. The Tempest V, however, has a considerably better zoom climb, holding a higher speed thoughout the manoeuvre. If the climb is prolonged until climbing speed is reached then, of course, the Spitfire XIV will begin to catch up and pull ahead.
Dive- The Tempest V gains on the Spitfire XIV.
Turning Circle- The Spitfire XIV easily out-turns the Tempest.
Rate of Roll- The Spitfire XIV rolls faster below 300 mph, but definitely more slowly at speeds greater than 350 mph.
Conclusions- The tactical attributes of the two aircraft being completely different, they require a separate handling techique in combat. For this reason Typhoon squadrons should convert to Tempests, and Spitfire squadrons to Spitfire XIVs and definitely never vice-versa, or each aircraft's particular advantages would never be appreciated. Regarding performance, if correctly handled the Tempest is the better below about 20,000 feet and the Spitfire XIV the better above that height.
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From
here Make of it what you will
[This message has been edited by jmccaul (edited 03-08-2000).]