In "Tomorrow Is Yesterday", Kirk escorts Capt. Christopher into the turbolift, and the following conversation ensues:
KIRK: Bridge.
CHRISTOPHER: Must have taken quite a lot
to build a ship like this.
KIRK: There are only 12 like it in the fleet.
CHRISTOPHER: I see. Did the Navy--
KIRK: We're a combined service, Captain.
Our authority is the United Earth Space Probe Agency.
CHRISTOPHER: United Earth?
KIRK: This is very difficult to explain. We're from your future. A time warp placed us here. It was an accident.
CHRISTOPHER: You seem to have a lot of them.
There's been a great deal made of Kirk's "twelve like it in the fleet" claim.
Fans have taken it to mean there are twelve Federation starships-of-the-line, period. Others have interpreted Kirk to mean there are only twelve Constitution-class vessels in the Federation at that time; there could have been more starships-of-the-line of other classes, like earlier versions of the Miranda.
Both of these approaches have problems, though. It was stressed by Kirk and other characters that the Enterprise and starships like her were special, the best the Federation could launch, and that the Enterprise was the best of the best. Yet during TOS alone, at least three starships were destroyed or otherwise lost, (Constellation, Intrepid and Defiant) and a fourth (Excalibur) wrecked to the point where she would obviously be considered a loss. There is also evidence of other starships being lost in deep space (Archon, Horizon) in the Federation's first hundred years. Unless the Federation made a practice of putting many ships in service, such losses would be catastrophic to the Starfleet effort. Clearly, starships in TOS and pre-TOS often survive, but some do not return home. But how great are those losses compared to the size of the overall fleet?
Franz Joseph (1975 Tech Manual) interpreted Kirk's remark with a different twist: The Constitution class of starships, the heavy cruisers of the fleet, were one of the biggest ship classes for starships-of-the-line, aka "Class I starships", numbering over 100 ships. But the Constitution-class ships weren't all built at once, but rather phased in over a period of years. Each group of ships launched was a subclass, and probably were built to a different spec as technology permitted; this would explain the difference in appearance between "The Cage", "Where No Man..." and TOS; perhaps each time the Enterprise had been previously built (or refit) to the latest subclass. FJ postulated that Enterprise NCC-1701 was launched as part of the original Constitution-class, a class of 13 starships. Other subclasses supposedly followed, but the first subclass of 13 were the "originals". (Maybe tech pathfinders?) FJ also added other starship classes, suggesting that there may be at least a couple hundred, if not hundreds, of starships-of-the-line comprising various classes and sub-classes in a much more robust fleet.
So, was FJ onto a good idea? Is his vision of Starfleet substantial enough to show how the fleet continued exploration without being on a war footing, Klingons and Romulans notwithstanding?
Perhaps Kirk's "twelve like it in the fleet" remark meant that there are only 12 Class I Starships (of various classes) in Starfleet who hail Earth as their home port. If the Vulcans, Tellarites, Andorians, and other Federation members also sponsored a similar number of ships from each world, a core group of only 17 worlds would easily push the total number of starships up to over 200. Would this make sense?
KIRK: Bridge.
CHRISTOPHER: Must have taken quite a lot
to build a ship like this.
KIRK: There are only 12 like it in the fleet.
CHRISTOPHER: I see. Did the Navy--
KIRK: We're a combined service, Captain.
Our authority is the United Earth Space Probe Agency.
CHRISTOPHER: United Earth?
KIRK: This is very difficult to explain. We're from your future. A time warp placed us here. It was an accident.
CHRISTOPHER: You seem to have a lot of them.
Fans have taken it to mean there are twelve Federation starships-of-the-line, period. Others have interpreted Kirk to mean there are only twelve Constitution-class vessels in the Federation at that time; there could have been more starships-of-the-line of other classes, like earlier versions of the Miranda.
Both of these approaches have problems, though. It was stressed by Kirk and other characters that the Enterprise and starships like her were special, the best the Federation could launch, and that the Enterprise was the best of the best. Yet during TOS alone, at least three starships were destroyed or otherwise lost, (Constellation, Intrepid and Defiant) and a fourth (Excalibur) wrecked to the point where she would obviously be considered a loss. There is also evidence of other starships being lost in deep space (Archon, Horizon) in the Federation's first hundred years. Unless the Federation made a practice of putting many ships in service, such losses would be catastrophic to the Starfleet effort. Clearly, starships in TOS and pre-TOS often survive, but some do not return home. But how great are those losses compared to the size of the overall fleet?
Franz Joseph (1975 Tech Manual) interpreted Kirk's remark with a different twist: The Constitution class of starships, the heavy cruisers of the fleet, were one of the biggest ship classes for starships-of-the-line, aka "Class I starships", numbering over 100 ships. But the Constitution-class ships weren't all built at once, but rather phased in over a period of years. Each group of ships launched was a subclass, and probably were built to a different spec as technology permitted; this would explain the difference in appearance between "The Cage", "Where No Man..." and TOS; perhaps each time the Enterprise had been previously built (or refit) to the latest subclass. FJ postulated that Enterprise NCC-1701 was launched as part of the original Constitution-class, a class of 13 starships. Other subclasses supposedly followed, but the first subclass of 13 were the "originals". (Maybe tech pathfinders?) FJ also added other starship classes, suggesting that there may be at least a couple hundred, if not hundreds, of starships-of-the-line comprising various classes and sub-classes in a much more robust fleet.
So, was FJ onto a good idea? Is his vision of Starfleet substantial enough to show how the fleet continued exploration without being on a war footing, Klingons and Romulans notwithstanding?
Perhaps Kirk's "twelve like it in the fleet" remark meant that there are only 12 Class I Starships (of various classes) in Starfleet who hail Earth as their home port. If the Vulcans, Tellarites, Andorians, and other Federation members also sponsored a similar number of ships from each world, a core group of only 17 worlds would easily push the total number of starships up to over 200. Would this make sense?