From the Subsim front page...
http://www.chron.com/disp/story.mpl/front/4174001.html
Like all attack subs, the Texas will carry torpedoes, mines and vertically launched Tomahawk cruise missiles. Its stated speed is a vague "in excess of 25 knots," though it is widely known that attack subs can travel underwater at twice that speed.
Really? :hmm:
(of course, not ALL attack subs carry vertically launched missiles either)