How much logistics difficulty might a different Rolls-Royce engine have avoided on British Phantoms?
Short answerA shared engine family could remove a fair number of support problems, although the Spey installation offered better performance.
NotesA more common Rolls-Royce engine could simplify a significant part of the British Phantom's support burden. That gain has to be weighed against the Spey's performance, illustrating the recurring naval-aviation tradeoff between logistics standardization and a bespoke aircraft-engine combination.