Quote:
Originally Posted by Steve49
Was the Spitfire IV actually a typo for PR Mk1D (later redesignated PR MkIV) or was the Squadron flying the Griffon equiped Spitfire IV fighter?
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PR ID was the designation of prototypes used by No. 1 PRU. Production aircraft were called Spitfire PR.IV or simply Spitfire IV. No unit ever used the Griffon Spitfire IV (the F.IV), as only two prototypes were ever built of that variant (subsequently renamed Spitfire XX).