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These first five vessels spent the next two years undergoing shakedown trials, while the remaining seven vessels of the initial authorization were built and commissioned over the next five years, ending with the U.S.S. Farragut NCC-1647 on Reference Stardate 1/8806 (June 2245). Republic NCC-1371 on Reference Stardate 1/8805 (May 2245), and the U.S.S. Intrepid NCC-1631 on Reference Stardate 1/8804 (April 2245), the U.S.S. Constellation NCC-1017 on Reference Stardate 1/8803 (March 2245), the U.S.S. Enterprise NCC-1701 on Reference Stardate 1/8802 (February 2245), the U.S.S.
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Constitution NCC-1700, commissioned on Reference Stardate 1/8801.04 (04 January 2245, ) was followed by a new ship each month thereafter: the U.S.S. The original construction contract called for thirteen vessels to be built, which would serve as cruisers with complete research facilities, capable of operating on five-year research and exploration missions. Originally, the class was intended to be much smaller, similar to the Daedalus and Ranger classes that came before it, but a shift in design philosophies and the result of decades of research showed that a larger design could be feasible. An integral part of Starfleet's buildup during " The Great Awakening," the class also distinguished itself during the Klingon War. The most renowned vessels of their time, Constitution class cruisers performed their duties to perfection for nearly a century. Construction on the Constitution class cruiser began at the San Francisco Fleet Yards on Reference Stardate 1/8209 (September 2239), and the class first entered service in 2245. Authorized under the Starfleet Appropriation of Stardate 0965, the design that resulted would impact the designs of dozens of later classes of starships. In 2235, Starfleet decided that, to better expand and protect the Federation as a whole, a more rugged and multipurpose exploration vessel was needed. 2 torpedo tubes with 100 Photon Torpedoes
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