qso1,<br /><br />The reason that the shuttle has failed to be an economical launch vehicle is that our people in Washington, Congress, choose to ignore the requirements that NASA made when proposing the shuttle. The only way that the shuttle would be able to meet the projections used to sell the program to Congress would be if the shuttle fleet consisted of no less than 7 orbiters. Economies of scale would reduce the per launch costs far below what they were with the expendable launch vehicles. And a fleet of that size would allow for frequent launches even though the individual orbiters took several months to turn around after a flight.<br /><br />But we let Congress, our elected representatives of our government, cut the size of the fleet to 4 orbiters. We continue to let Congress ignore the demands of realistic space exploration, instead of being vocal enough to get our way. Someone called NASA a jobs program. During the same period of time that the shuttle was designed and built, and in its lifetime, we have funded the design, construction and deployment of submarines able to carry 16 rockets that each lift a pack of warheads into space. These submarines are able to stay submerged for months at a time, and are the size of a typical freighter. If these weapons are ever put to use, the world as we know it will end. But would we call such a weapons system a 'jobs program'? Which of these programs is most likely to assure the future of the human race?<br /><br />Congress responds to input from the people, which is why elder Americas and the religous right have had such an impact on policies in this country. Space enthusiats are like pot smokers, they talk a lot about what they would like to see happen, but they never do anything about it. Write to your people in Washington! Let them know what is important to you, and what you think the future should be. Stop letting them jeopardize space exploration in the name budget balancing and defense. <div class="Discussion_UserSignature"> The secret to peace of mind is a short attention span. </div>