Just to flesh it out a bit more.

R.13/4F5/6 Prop, RA.10108 Dural blades

R.13/4F5/6 Prop, RA.10107JT Jablo blades

R.14/5F5/2 Prop, RA.10129 (JT,RTS or JCS) Jablo blades

“Did Rotol change the colour of their ID disks after the war?” Not after but during the war. Sometime about 1942-43 Jablo blades standardised on the pink/red disks. Prior to that Jadlo blades with a Rotoloid covering used a white disk. Just to confuse matters the white disks were later used to signify Dural blades.

The colour of the disks on Jablo blades range from a dull matt pink to a the more common dull matt red depending on which subcontractor made them. The colour illustrated in the photo of the IWM Spit 24 is possibly a bit too intense although I should take some of the blame for that as I spent a very pleasant day Duxford advising them on the blade markings.

Anne

Hi Anne. Glad to have you weigh in on this. I was in fact aware of the late-war change thanks to the information you and others shared in earlier threads including the one I started about the Spitfire Mk. IX props. I’m definitely going with red for both the XII and 24 kits I’m currently building. It’s really a shame that decal producers (both kit and aftermarket) persist in providing mainly yellow disks for Spitfire blades. The only exception I know of in 1/48 scale is the Techmod stencil sheets, which provide several colors, including the light blue I used on the Mk. IX.

Cheers.