Mentioned on the other thread, but I noticed it again recently that in 1947, 17 Squadrons mk 14s (i.e. original high backed aircraft - e.g. RN185) in BCAFO in Japan were fitted with the enlarged mk 18 style rudder, whilst 11 Squadrons FR14s (low backed - e.g. NH844) were fitted with the earlier F14 style. There are pics at Miho which show all 17 Squadrons aircraft with the original rudder in Spitfire At War 3, and another in the Lucas 'RAF Fighters Overseas' book that shows all the squadrons aircraft with the later style!!*
'RN' serialed aircraft operating in the SEAC zone in 1945/6 had the F14 style as well - both high backed (RN193) and low-backed (RN218). I've not yet found photos of an aircraft carrying both styles of rudder, but i'm sure they do! This does make you wonder about the wording of any retrofit notice!!
Certainly. the F18 style doesn't seem to start appearing on FR14s until into late 1947/1948 (The two FR14es supplied to 602 Squadron had it)
There is a photo in SaW3 showing mk 18s under assembly which is dated as late 1945.
Thanks for the drawing John, the part I always found hard to envisage was how much to add to the rear of an F14 rudder to make the later one!!
* The later style also appears to have been fitted to both high and low backed mk 14s supplied to Belgium