During TOS we saw phasers on multiple occasions being fired while ships were at warp, on-screen during the series set in the 24th century Starfleet vessels apparently could no longer fire phasers at warp. Why?
A theory. Many fans have suggested that the warp dirve use in TNG and later set series was different than the drive used during TOS. One possibility is that it is "trans-warp drive" and in common usage it is simplified to "warp drive." There is certainly a different warp scale in use, What if the newer warp drive doesn't permit phaser fire while at warp?
Starfleet knowingly exchanged being able to use phasers at warp for whatever the advantages the new warp drive provided. Only torpedoes would be used at warp.
What 'cha think?
A theory. Many fans have suggested that the warp dirve use in TNG and later set series was different than the drive used during TOS. One possibility is that it is "trans-warp drive" and in common usage it is simplified to "warp drive." There is certainly a different warp scale in use, What if the newer warp drive doesn't permit phaser fire while at warp?
Starfleet knowingly exchanged being able to use phasers at warp for whatever the advantages the new warp drive provided. Only torpedoes would be used at warp.
What 'cha think?