As I said in another post, I been looking at a lot of the Star ship's blueprints. Most have the warp core as being large with about equal length up and down around the reaction chamber. The Excelsior is very much offset then the rest. Also, the original one was to have two warp cores in it, yet the Canon image I found from the movie shows a single core. My interest is, would the size of the core matter vs how the Reaction chamber works? Should or can the Chambers be scaled down and provide the same amount of power? I have been looking for any details in the Star Trek dictionaries but nothing as to reference to this, thus far.