hear is some the klingon bop is actualy a romulan ship in st III kruddg stole the bop from the romulans the edtiting caused the scene where we leatn that to be cut. the battle cruser was actualy given to the klingons from the romulans during tos.  the torp was origanaly a wass destruction wepon of high potinancy not a heavy wepon same with the plasma torp the fedderitation had disruptors before phasers the first incountered romulan ship was a U-11 class destroyer not a weird bop. and much much more  

And warp drive, too, but recent events point otherwise.  That's another topic.