One of my favorites also. I'm not sure if there is an extended version--however the two disk set, which is what I also have, has 5 or more deleted scenes that are really nice little vignettes of shipboard life on the Surprise.
The "making of" special is quite good, showing how thay selected actors to get the look of the period, how they trained them as coordinated naval crews, how thay built a full scale duplicate the ship for use in a huge water tank along with sound stage interiors and the like.
I want the bluray version, but wonder if they included any of those extras on it.
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Artillery adds dignity to what would otherwise be a vulgar brawl.