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Why did we phase out Sea Eagle? couldn't it have been used from Nimrod or as in the old EF2000 Game from Typhoon?"
It was due an expensive refit around the time of the SDR - the realistic assessment was made that neither Tornado nor SHAR would be likely to do much open water anti ship strikes in the near future, and we had various variants of Harpoon to do the job anyway. It went primarily as a cost cutting measure.