Jul 6 2009 8:06AM | Permalink |Comments (21) |
NASA has commissioned a study to see if there is a cheaper way to get to the moon then the 35 billion dollar redesign of the space shuttle. The study shows they could do it for 6.6 billion dollars. This is reassuring, especially in view of the renegade NASA rocket scientists I told you about last year. That renegade proposal, done as a hobby by engineers and project managers too terrified of management retribution to let their names be known, seems to have set the tone for this study. By reusing solid rockets from the shuttle as well as reused liquid rocket components the cost to do heavy lifting to the moon and beyond can be greatly reduced.
Every engineer knows that evolution rather than revolution is a better design methodology. Dragging out a white sheet of paper every project is a good way to waste money, or fail, or both. Unfortunately the goals of NASA may be more to spread money to crony contractors and keep bureaucrats in jobs rather then reach the moon. This is another sad case of the engineers being ready willing and able to do a good job but the politicians and political managers just won’t let the engineers do their job. I linked to it in the first post, but please re-read Dr. Richard Feynman’s blistering critique of the NASA culture that caused the first space shuttle explosion.
Perhaps this new NASA study is really a sign of the health of the organization. They are still too political to just accept the work of the renegade scientists, but at least they are not brushing all the good work into the dustbin of history. NASA actually investigated some or all of the proposal and then laundered it as their own study. Bravo NASA if that is what is going on. As we teeter on complete economic collapse due to the systematic looting of the economy by the finance types, it will behoove us to get to the moon in the cheapest way possible. We have to save the big money for Wall Street bonuses. I don’t like it either, but that is the reality of the society in which we live.
[Update: I found a nice drawing of the shuttle O-ring before and after redesign. You can see how the original design would force the O-rings away from the seal as the interior of the booster pressurized. They added a third O-ring and more importantly, added structure to keep the original O-rings against the sealing surface. The added complexity of the new seal is worrisome, and I wonder why they did not do a labyrinth seal to cool the gasses and put the O-rings on the outside. I assume they had to do it this way for re-usability.]
[Update: Super-Croatian Andy Turudic sent a link yesterday that I just got. It also has a video in that the title of let me find the YouTube link that is broken inside the first link in this post.]
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