X-17B

The X-17B was a static test model in service to Starfleet in the mid-2260s. This model was used for testing the warp field geometry of a modified Constitution-class starship in a warp tunnel. James Kirk and Spock observed one of the tests conducted on this model. 


 * Note: Based on the close similarity of this model's appearance to that of the USS Enterprise (NCC-1701) in 2266 and the uniforms worn by the officers, this model may have been tested in 2265.