History:
Nothing is known about this starship class whose construction seems to date back to the beginning of the 24th century or earlier.
TNG "The Best of Both Worlds, Part II"
1) This is one of five study models for the Excelsior, built in the course of the pre-production of "Star Trek III". The model briefly appeared on screen in TNG: "Best of Both Worlds" and "Unification". The real starship probably isn't related to the Excelsior class. It is named "Excelsior study" in this list only due to the lack of a proper name.
2) The model has a saucer resembling a Constitution refit and four nacelles which are connected by what looks like an extendable neck. The nacelle pylons appear to be retractable too. Since this would make no sense technically, it is a better suggestion that, unlike it was the original intention, this may be a cargo ship, and containers can be mounted to the underside of the connecting spine.
Ex Astris Scientia
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