The God Thing wrote:
Nice, but I why would a fission-energized interplanetary transfer vehicle require solar photovoltaic arrays? Considering their
extremely small surface area and placement near the engine pod I think it is somewhat more likely that Matt Jefferies intended those things to function as the radiator component of the DY-100's thermal control subsystem.
Maybe so. They are certainly small in relation to the power requirements. The Jackill blueprints label them as solar panels. So do the Gilso schematics, here:
This one calls them reactor cooling vents, though, but shows solar arrays on the midship winglike portions of the hull:
But your suggestion seems logical to me.