*I'm not arguing the merits of battleship mounted aviation facilities. I am suggesting they be maintained but at bare minimum level, completely secondary to other areas of importance*
When you look at the sacrifices the RN made for 1st class aviation facilities on the KGV class and on some rebuilds ( projected rebuilds) how significant were they in deck space, weight and gun arrangements.
The Admiralty during WW2 were usually casting an envious eye at what the USN allegedly achieved on 35,000tons ( I say that because I'm pretty sure the RN were told and believed things like 16" belt thickness ect ) one obvious sacrifice the USN made was having less optimal aviation arrangements and individually lighter secondary armament mounts.
So my question would be, what could you get if you paid bare minimum lip service to the aviation requirement ? For example ignore the requirement for hangers and cross deck catapult. Instead it can mirror USN stern arrangement or even be a fly off the turret arrangement. This would probably get some political backing in certain circles, especially from Winston who though the amidships area to be unarmoured for some reason. Then reducing the requirement for 5.25" secondary armament to USN level equivalent. This would equate to 4.5" mounts as in rebuilt QE class.
The main saving would be on deck space, but would a slightly more efficient arrangement of secondaries and super structure be possible that would lead to weight savings ? Would there be greater flexibility for a different armament layout ? I'm thinking radically now but an all forward arrangement like Nelson perhaps or an 8 x 2 in twin turrets mini 14" vanguard, 28 knots and 13" belt with 5 - 6" decks ?
So the RN was never going to be able to match its rivals in areas of strength like advanced welding or high pressure steam boilers or flagrant disregard for treaty limitations (see German, Italian and Japanese designs) but it could rebalance its existing priorities to bias its designs in towards either being faster, more heavily armed ( 12 x 14" - therefore in the water sooner) or more heavily armed, uniform belt and deck instead of varying over machinery for example.