From: utzoo!decvax!harpo!seismo!rocheste!ritcv!kar Newsgroups: net.startrek Title: Re: Why doesn"t the Enterprise tumble? - (nf) Article-I.D.: ritcv.263 Posted: Fri Apr 8 17:22:10 1983 Received: Sat Apr 9 06:53:40 1983 References: pur-phy.715 Why doesn't the ship tumble? I don't know about the early episodes, but in the later adventures, there was a large counterbalancing mass positioned at an angle to the center of gravity that was symmetrical with the angle of the engines. You guessed it: Kirk on the bridge.