- Star Fleet Technical Manual gives the registry as NCC-1707.
In 2268, the Hood participated in a fleet war games exercise. This exercise put four starships against the M-5 controlled USS Enterprise (NCC-1701). The M-5 malfunctioned, causing the Enterprise to fire full-powered phasers at the minimally-defended Excalibur, severely damaging the ship. (TOS: "The Ultimate Computer")
- It remains unclear if the Excalibur was able to be reconstructed and reused, or if the damage was too widespread for repairs to be made. It also remains unclear if her crew survived.
John Russell captained the Hood from 2268-2272 until relieved by Therin. (Starship Saladin: "Tour of Duty") Therin captained the Hood from 2272 to 2293. (Australian fanzines Data, Kiron III, and the New Zealand fanzine, Katra)
- If the Hood was indeed destroyed earlier, then this may have been a new ship.