The two Starfleet freighters shown in TAS look like a good measure of consistent thought went into their designs. Maybe they’re not what Matt Jefferies would have done, but they look reasonably consistent with TOS extrapolated from the two sole examples we have of Starfleet design in TOS: the Enterprise and the Galileo.
If you squint there is some basic similarity between the robot freighter and Cyrano Jones’ ship—a play on the shape of the Enterprise’s secondary hull with the bulk up front and a cutout or fantail on the aft end with nacelles fixed above. The freighter Huron is also somewhat similar only reversed in orientation with the bulk of the ship aft rather than forward.
It looks as if the illustrator took that basic shape of the Enterprise’s secondary hull and played with it to create different variations and interpretations—not a bad approach resulting in something that evokes a small degree of familiarity while looking almost completely new.
If you squint there is some basic similarity between the robot freighter and Cyrano Jones’ ship—a play on the shape of the Enterprise’s secondary hull with the bulk up front and a cutout or fantail on the aft end with nacelles fixed above. The freighter Huron is also somewhat similar only reversed in orientation with the bulk of the ship aft rather than forward.
It looks as if the illustrator took that basic shape of the Enterprise’s secondary hull and played with it to create different variations and interpretations—not a bad approach resulting in something that evokes a small degree of familiarity while looking almost completely new.