For other uses, see Excalibur.

The USS Excalibur was a Federation starship in service in the mid-23rd century. By the early 2240s, the Excalibur was under the command of Captain Rollin Bannock.

During the Battle of Donatu V in 2244, Bannock devised the flanking maneuver that allowed Federation forces to overcome the Klingons and force them to withdraw. On the following years, Bannock's strategy became known as one of the most brilliant gambits in military history. (TOS - My Brother's Keeper novel: Republic)

There is a possibility that this Excalibur was meant to be the USS Excalibur; however, the events surrounding the Battle of Donatu V as featured in the Errand of Vengeance and Errand of Fury trilogies highlight that the USS Constitution had only recently been launched, and the USS Enterprise was under construction. Therefore, its seems unlikely that this was the Constitution-class Excalibur.
Ships named Excalibur
United Earth, Starfleet Excalibur (NX-03, NX-class) Seal of United Earth United Earth Starfleet Emblem
Federation, Starfleet USS Excalibur (2240s starships)USS Excalibur (NCC-1664, Constitution-class)USS Excalibur II (Constitution-class)USS Excalibur (Miranda-class)USS Excalibur (NCC-2004, Excelsior-class)USS Excalibur (NCC-26517, Ambassador-class)USS Excalibur (NCC-26517-A, Galaxy-class)USS Excalibur (NCC-94547, Excalibur-class)see also: Excalibur-class UFP seal Starfleet Command logo
Federation Starfleet
(Kelvin timeline)
USS Excalibur (Arbiter-class)USS Excalibur (Constitution-class)USS Excalibur (Defender-class)USS Excalibur (Guardian-class)USS Excalibur (Interceptor-class) UFP Kelvin seal2250s alt cmd badge
Imperial Starfleet
(mirror universe)
ISS Excalibur (NCC-1664, Constitution-class)ISS Excalibur (NCC-94547, Excalibur-class) TerranEmpire
Galactic Commonwealth, Starfleet
(mirror universe)
Excalibur (free starship)
Khanate Earthfleet
(alternate timeline)
Excalibur (Earthfleet starship) Khan
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