Why do Enterprises have same registry number?

p***@att.net

2014-03-28 17:23:58 UTC

Can anyone explain why are all the ships with name Enterprise have the
same registry number (NCC-1701). I know that they are differentiated by
letters (A,B,C,D), but this naming doesn't make any sense.
For example U.S.S. Defiant(NX) , as some of you might know, is not the
first ship to have that name. There was another ship with the same name,
but different registry number -- NCC-1764 (TOS:"The Tholiann Web"). Even
if the new Defiant is an expaerimental , so they gave it a new registry
number, it still does not make sense.
There are ships like U.S.S Potemkin (NCC-1657) and U.S.S Potemkin
(NCC-8253), also same name different registry number. Other examples
Excalibur(NCC-1664) and Excalibur (NCC-26517), Constellation (NCC-1017)
and Constellation (NCC-1974).There are also two USS HOOD's, USS
Intrepid's, USS Potemkin's -- all hving different registry numbers. And
all have two things in common --1) there first ship was a different from
the second, unlike the Enterprise, which first two ships had same class
of Constitution; 2) first ship appears in TOS, second in TNG.
However, there are two more examples. USS Grissom (NCC-638 Oberth, ST III)
and USS Grissom (NCC-59314, Oberth, TNG) -- these two have same name,
same class (just like Enterprises), but totally different registry
numbers. They could have given NCC-638A registry number to the second,
but did not.
Second example, USS Saratoga (NCC-1867, Miranda, ST IV) and USS
Saratoga (NCC-31911, Miranda, TNG) -- just like USS Grissom's have
different registry numbers.
Unless there is an explanation, this is one of the biggest
unexplainable mistakes made by the writers.
Any thoughts?
-- Albert

Because some Names like the Defiant with the NX in the number mean prototype ship, like all the ships in Star trek enterprise had NX in their name because they were all prototype Warp 5 Vessels