Although I never owned the actual model rockets, my 16 year-old self was excited to find this digest-sized Estes catalog in 1975 that featured their new Star Trek model rockets on the cover! We get a great cover painting, and a two-page spread inside about the models... nice. I am also including scans of any pages that mention or depict the Trek models. I was impressed with how accurate the Enteprise model was, without very much in the way of alterations to make it into an actual flying rocket. I know that if I had bought one, I would never have flown it, preferring to keep it in good shape to display (if I had lived in a home with a father that permitted such things). Enjoy!
Anyone familiar with early Trek merchandising remembers how the starship was often erroneously depicted with rocket exhaust coming out of the shuttle bay (which irritated me). In the case of this model rocket, it was actually correct!
UPDATE: I said earlier that I had a newspaper clipping somewhere of a local model rocket club launching the Enterprise. Well, I've found it, and it's below. It was clipped from the Ft. Lauderdale Sun-Sentinel on May 25, 1975. I didn't save the entire article, only the photo and the line in the article about the launching of the Enterprise rocket.