Star Trek III: The Search for Spock was one of the few Star Trek productions that introduced a multitude of new space faring designs at once, six in this case, including the Excelsior-class. Built for that movie, the studio model for the Excelsior-class USS Excelsior and the subsequent variant models, have been in used in five of the Star Trek films and all three of the television shows set in the 24th century, making the Excelsior-class the most frequently seen "guest-star" Federation...
