- Jun 5, 2011
The P-51H was noted as being extremely fast and fast climbing (it had a climb rate faster than the later Griffon Spitfires and the Spiteful).
Did it really?
At 90inHg MAP (~+30psi boost) could climb better than the Spitfire XIV with +18psi boost. And it could at 80inHG MAP (+25psi boost).
It was, however, quite a bit slower at 67inHG (+18psi boost).
Can't find climbing performance for a XIV with +21psi or +25psi boost at the moment - only level speeds.
The Griffon 65 had ~500hp more up to 7,00ft (~20% more) when using +25psi against +18psi boost. And about 400hp more in FS gear from ~13,00ft to 20,000ft.
I should think that the Spitfire XIV with +25psi would be a very fast climber.