Does anyone know if Wah Chang designed the BoP or manufactured it from Jefferies' design? I have never seen a Jefferies sketch for the BoP, so I assume the former.
I think the design stays close to the requirements of the script -- a stolen Starfleet design. It's a saucer extended to support the nacelles without a secondary hull, with pylons shaped to look like the wings mentioned in the dialogue. Vaguely Art Deco/Streamline Moderne but really more Googie in its saucer and rocket cues.