[quote=@DracoLunaris] on the fire power I agree that that description is, in hind sight, excessive and a rather un-thematic/illogical design. putting guns on it wastes time/resource that could be put into making another one or making it more lily to survive the trip after all. as for the size, does the fact that there is only going to be one, possibly two, of them in the narrative/galaxy elevate that issue or would you rather I still shrink them down? If so by how much? [/quote] Well, thing is that a suitably advanced species could find a way to power exodus ships like these Arks without having to dump so much material into them, not to mention most of the space the ship occupies would be dedicated to the dwarf star anyways. During the long voyage, the ships could rely namely on scoops for the intermittent material scattered in the void, and stored reserves. Since most of the inhabitants will be on stasis anyways, and you mentioned that the ships are relying mainly on their initial velocity, the only power the ships would need to expend would be on maintenance. All that considered, they wouldn't need to be quite as large as you have them now, but could still be relatively sizeable. This is even taking into account that there would only ever be one or two in this galaxy. Bigger is not always better after all.