Right, I've babbled on about building a trimotor in roughly 1/60 of some kind for a while now. Might not work out to build it during the contest's time frame, but we'll give it a go and it'll hopefully get me started anyway.
So the first question to solve is which of three choices? Any of which will do really.
First option is the slightly older Fokker F.VII:
Next is the very similar competing Ford Trimotor:
Third is the DGAD option, which stands for "Don't Give A Damn", and will indiscriminately make something that rather looks like both planes without being either.
I suspect that no matter what I build there will be some DGAD aspects to it, perhaps taking one of the real planes and modifying it as necessary. The Fokker has nicer lines, but the Ford's stubbier nature makes for a more tabletop-friendly model and the corrugation seems a must. Both have a comically thick wing which I will probably thin down a bit (the wing will also be kept separate rather than being glued on permanently, possibly affixed by magnets, so as to make storage easier). It's possible the question will be answered by whichever plans I can get copies of.
The engines will be one of the few premade parts, being Double Wasp engines from a 1:48 B-24 Liberator upgrade packet, which I am hoping I can cut in half to make fake older Wasps with (if I can't I'll just have to use them as-is).
It also belatedly occurs to me that I know what callsign will be painted on the plane: D-GAD