Apologies for the extended absence. I'm still unable to access the forum via my desktop computer, so I'll add this update from my phone.
I was able to get more detail added to the engine and propellor, then turned my attention back to the wheels. I had several more attempts, all ending in failures, and I almost despaired of ever making a set. Eventually, the Christmas holidays rolled around and I had some time to really sit down and work through all the issues. Cementing the two halves of the wheel together was an absolute killer but finally, I was able to do it by using a miniature drill press as a vertical clamp.
Long story, but here's a pic of the first successful wheel which I made on the last day of my holidays (it always takes exactly as much time as you've got).

Feeling more confident now, a second one followed a few nights later...

During the week I cleaned the tyres up and udjusted their fit on the axles. I'm looking forward to taking them off and giving them a coat of paint. The wheel rim and spokes appeared to be black on A.283/14, so I'll give them a very light pass with the airbrush. The early style rubber tyres will be a pale grey, almost bone colour with a little dust and shading effects. Hopefully, it all goes to plan. Fingers crossed!
