Looking at a cutaway drawing of the Stirling, I note it was built with dual controls, a galley, elsan and bunk as standard. Maybe add a second bunk and some additional galley stores?
For a quick and dirty MkI MPA, how about replacing the forward turret with a glazed nose and mounting three...
Any impact will also be governed by circumstances. As an example, if both fleets sortie but never meet, might this be viewed post-war as due to a failure to locate the enemy and lead to programmes for light "scout" aircraft carriers?
My go to for long range Spitfires is this article from the Royal Aeronautical Society - https://www.aerosociety.com/news/escort-spitfire-a-missed-opportunity-for-longer-reach/
1 - I think the Shark is often overlooked, particularly given it's performance when re-engined with the Bristol Pegasus (which arguably it should have had earlier?).
2 - There's always the chance of a crippling hit, but note the OP says the final sinking was by 21" torps from the cruiser(s).
From this page on What If Modellers - a single engined area ruled Lightning -
https://www.whatifmodellers.com/index.php?topic=49387.15
More likely to gain export orders? Something akin to the MiG21?
I'm liking this! I've suggested in other threads that the RNN could have purchased one of the surplus RN battlecruisers post WWI, but that was always going to be pushing the bounds in terms of funding, manning and utility. This looks as if it could lead to a more affordable and sustainable...
I'm sure this isn't news to many, but following on from the EMF and early 30's exercises - https://en.wikipedia.org/wiki/Experimental_Mechanized_Force#The_future_British_Army,_1935 - The General Staff also wrote a "Forecast of the Opening Stages of a War with Germany" (1935) in which the First...
One of the problems with questions like this is they eventually seem to end up concentrating on hardware - tanks in particular. (And I'm as guilty as anyone - https://www.alternatehistory.com/forum/threads/improved-early-war-british-tanks.488684/ )
But what can be done from 1935 to improve...