1/3500 at 427m
Print orientation for Detail Plastic:
This is the Yamato Class from the Video Games "Klingon Academy" and "Starfleet Command". Memory Beta states a length of 854m. Personally i think, the ship would work much better at half that size. At 427m, the secondary hulls would be exactly the same size as on the Excelsior Class. The warp nacelles would still be larger than the ones on a Constitution Class, but only slightly and at least not larger than the entire ship. The whole thing would still be a huge ship for the time of TMP. But this is just my personal opinion.
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