ex-astris-scientia has conducted a study of the wrecks from Wolf 359
The funny-looking 4-nacelled ship that is shown a few pages back is an Excelsior study-model from ST:III.
"Fan descriptions of Okuda's slide show Back in the early 90's Michael Okuda showed slides of several of the BoBW ships on a convention. Since then a couple of common descriptions for the these ships have been established and widely accepted, although the episode itself and more or less blurry screencaps from it are still the only distributed references so far. This is what has been commonly stated about the ship classes at Wolf 359, allegedly based on what Mike Okuda presented:
Rigel "A Galaxy-class saucer, attached directly to a Constitution engineering section (no connecting dorsal). Three Galaxy-style warp nacelles; the first two are about where you'd expect, the third is attached directly below the shuttlecraft bay."
Freedom "Take the connecting dorsal from a Constitution-class ship. On one end, put a Galaxy-class (-ish) saucer. On the other end, put one Galaxy-class warp nacelle. That's it; no engineering section."
Challenger like the Constitution class, but the two nacelles are Constellation style and attached to the top read end of the saucer."
New Orleans "Again, a scaled-down Galaxy saucer (meaning it was made from an Enterprise kit, but with a larger bridge and larger windows, intended to imply a smaller ship). Two nacelles on pylons above the center axis of the ship. I think this was my favorite of the Miarecki study models. At Dan Curry's suggestion, I added two or three 'outboard pods' to the ship in an effort to make it look a little less Enterprise-like. The photos in the Encyclopedia are all photos of the study model, retouched to add lights in the windows. I took the photos just before starting the battle damage work."
Cheyenne "This was a scaled-down Galaxy saucer with four nacelles, arranged in a manner similar to the Constellation. Ed made the nacelles from marker pens."
Challenger "A scaled-down Galaxy-shaped saucer, and two warp nacelles, one above and the other below the engineering hull". - "The Buran was the above-and-below model that I had thought was the Chekov. I don't recall what Ed's original version of the Buran was, but I added the submarine parts and glued on the engines, although it looks like Ed assembled the engines. I thought it was a clever idea, but it ended up looking like a lollipop. Maybe Ed's version was a single nacelle, and I added the second."
Rigel "I don't think we ever came up with a ship design specifically tied to that name. (I'm sure someone will correct me if I'm not remembering correctly. I don't have my notes here at the moment)."
Freedom "Upon reflection, I think this may have been something that Greg Jein came up with for one of the kitbashes he contributed to either BOBW or
Unification. I'm not sure which model this was, and I'm not at all confident that Fact Files checked with anyone."
Springfield "The Chekov was built by Ed, based on the small Ent-D model saucer, with two nacelles and marker pen engines."
Melbourne "The original version of the Nebula. Ed made us two nearly-identical Melbourne models. I destroyed one of them to create a battle-damaged ship for BoBW2. (I recall being up in the art department one evening, Dremel tool in hand, cutting up the ship, while Patrick Stewart, in Borg costume, came upstairs to use the Xerox machine. He asked me what I was doing. I showed him the model and said something like, 'See what you did!') Rick Sternbach helped with the battle damage, too. And Greg Jein contributed quite a bit of wreckage as well. The other Nebula model ended up on one of the side tables in Sisko's office in DS9. I think it was label 'Melbourne', too."
There was even a Constitution-class wreckage at Wolf 359!
http://www.ex-astris-scientia.org/articles/wolf359.htm
I hope this helps answer questions from previous pages.