The SCCA Pro Racing World Challenge and Continental Tire Sports Car Challenge racing series, run by the Sports Car Club of America, and the International Motor Sports Association, respectively, utilize modified production-based cars, sports cars, and touring cars, similar in spirit to the original Trans-Am racers.
U.S. Submarines, Inc. U.S. Submarines was formed in 1993 and has had a continuous internet presence since 1996. Recently we had a dispute with our internet service provider and have had to switch ISPs. We have a new Web site under development.
The USA Navy as of 2008 operated 99. vessels powered by nuclear reactors including 10 nuclear powered aircraft carriers and 71. submarines. It has operated nuclear powered ships for more than 50 years. As of 2001, about. 235 naval reactors had been built at a unit cost of about $100 million for a submarine and $200.