(moved from Aviation)
The question Did the Space Shuttle boat tail used in the transport configuration save fuel? about the Shuttle boat tail prompted me to wonder how it was transported back to the west coast of the USA after shuttles had been piggybacked to Florida. I would assume it to be quite lightweight, but bulky. Would they have put it on a cargo plane, sent it via boat, or sent it on truck trailer? The rear of the shuttle shows to be 22 feet wide, so the boat tail of equivalent width would definitely take some care to send it via roads, if that's how they did it.
Also, as a followup question, how many boat tails were manufactured/used?