10 Times Star Trek Reused Ships And Hoped You Wouldn’t Notice
1. Tellarite Cruiser/Xindi Arboreal Cruiser
John Eaves designed the vessel that would appear in Enterprise, used periodically by three different alien species. First, it appeared as the Arkonian destroyer in Dawn. This ship was realised entirely in CGI, which presented Eaves with an opportunity to use null-space in its design. Design work for the Romulan Valdore Warbird had included a gap behind the 'head', so Eaves re-used the idea for this vessel.
The problem with physical models, Eaves commented, was that this type of ornamentation could lead to lighting issues. That wasn't a concern on CGI models. As often happened with his designs, Eaves then found his Arkonian destroyer returning as the Xindi-Arboreal ship, minus the blaster from the underside of the ship, joining the Xindi fleet.
The ship would then see an updated colour scheme for its next appearance as the Tellarite ship in Enterprise's fourth season. This seems to be the allegiance that has stuck with the design, as a Tellarite sleeper ship of this configuration was seen in Star Trek: Prodigy as well.