Robert Comsol wrote:
Back to Excelsior
's neck (sorry, can't let go of this). The black thing at the connecting dorsal's stern
is annotated as "photon exhaust" in the Official TMP Blueprints
The only way I can rationalize this is an exhaust to get rid of photons or gamma rays and could have something to do with the vertical intermix chamber coil nearby. The whole thing sounds rather exotic and strange to me.
Considering where it's located, I think it's just an abbreviated way of saying "photon torpedo launcher exhaust".