Those schematics were originally from the ST: fact files, an official Paramount production thingy but obviously being official from Paramount they always made loads of mistakes like almost completely making up their own design for the Niagara schematics. Nothing wrong with those Sabre schematics though. They look spot-on.
P.S. I can't believe everyone is spelling Sabre properly...
Both Sabre and Saber are correct really - just depends on which side of the Atlantic you are. I only spelt it that way because I'm English.
As for the schematics - I had already constructed the mesh prior to finding those pics and though some serious modification was made to get to more of a resemblence, it does differ in many ways - for one where the trek guys placed the registry on the sides was completely bananas as the warping of the texture on the cgi model was horrendous. I moved it down to a more naturally curved bit. As for the torpedo launchers fact-files gets it way of the mark (like I'm surprised
). The forward launcher is the small round turret just behind the main registry on the flat bit. The aft launchers (2 of them) are the round hubs sitting on top of the aft module and are rotating turrets themselves (evidence can be seen in ST:FC where a Sabre fires two torpedoes at the cube from the Port side turret) See enclosed pics of the aft turrets.