The Starship Enterprise NX-01 was launched by the United Earth Starfleet in 2151 under the command of Captain Jonathan Archer prior to the incorporation of the United Federation of Planets in 2161. The first NX-class starship and first vessel fitted with a warp five engine, the ship was crucial in establishing United Earth as a legitimate interstellar power.
As portrayed in Star Trek: Picard - “The Bounty” (TV, 2023)
This configuration was speculation on the part of Doug Drexler and was finally made canon by its inclusion in the Fleet Museum in the third season of Star Trek: Picard.