The warp scale did indeed change. I Actually seem to remember that was adressed in TNG.
Also the stardate naming convention changed after TOS.
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SatyrSack@quokk.au 2 weeks ago
The warp scale changed. The Enterprise exceeded warp 10 several times in the Original Series. Then that infamous episode of Voyager claims that warp 10 is a theoretical limit which is difficult to reach and literally impossible to exceed.
Summzashi@lemmy.world 2 weeks ago
SpaceCowboy@lemmy.ca 2 weeks ago
This my head canon… In the movies they were working on transwarp drive on the Excelsior. The warp factor on transwarp drives is different from a regular TOS warp drive.
When Sulu put the hammer down on the Excelsior in ST VI, it proved that transwarp was just way better than regular warp drive. For whatever reason they couldn’t make transwarp work on the Constitution class so most of them were decommissioned.
By the time of TNG, pretty much everything is transwarp, so no one bothers calling it that ,they just call it warp drive since it became the standard. The transwarp factor is used everywhere, but everyone just calls it warp factor.
So it’s kinda like a change from imperial to metric units.