Now working on alternate unused designs for the 2001 Discovery, of which there were many. This one is fairly close to the finished version, but had added tension cables (helpful), and large cooling vanes (essential).
The vanes can tip – this would presumably be so they can stay edge on to the Sun, to avoid overheating.
Credible design for the craft like “Discovery” in “2001, A Space Odyssey” was considered very important, but the cooling vanes looked too much like wings, and were therefore dropped.
Not at all happy with the nurneys on the main habitation sphere yet…