The small kit is subtly different from the large one. IMHO its a bit better, albeit smaller. It fits "better" than the large kit, although it does need a good amount of putty and sanding for a smooth finish. The more simple left and right hull construction cuts down on a lot of work from the big kit, whose hull came in six parts. The underside of the nose is properly contoured and the engine nacelles are correct.
The kit does lack any interior, although after I scratch built one, I realize that even in good light, you really can't see it at all... A Flying Sub and bay would have been nice in the kit, given its somewhat high cost and relatively simplistic nature. Since the FS was a big part of the TV version of the sub, its absence is sort of puzzling.
But for what you get in the box, its pretty nice and makes into a good, solid replica. One detail in the kit that is poor are the two molded spot lights under the nose... they are faint and indistinct and should have been seperate clear parts like the similar third nose light. You get two TINY tail fin lights in clear... and the nose light... but not the two big lights that go underneath.
