Well, no-one else had bothered to answer......and OHOPE obviously hadn't found the excellent naval aircraft historical website.
Besides, I do remember those things clattering around the West Country!
I last saw an airworthy piston engined Whirlwind in 1975 or '76 at RAF Brawdy when I was a student on 234 Sqn. No idea where it was from - it was midnight blue and marked 'Royal Navy'. I had thought the piston engined version was long since extinct.