Interesting article about that from the Daily Telegraph
" And today? Allowing for inflation, Britain’s GDP is four times greater than in 1953 but the country appears incapable of maintaining a viable fleet. Today it comprises two helicopter carriers, 1 active assault ship, six destroyers, 13 frigates, 42 minor vessels and 13 auxiliaries. Take away escorts on operations or in refit and the Navy would, as Lord West says, struggle to field more than a handful for a review. But one thing our increasingly Ruritanian fleet is not short of is admirals. There are 28 full, vice and rear admirals, one per major combat unit, surely the most over-managed structure in the country."