Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!hellgate.utah.edu!dog.ee.lbl.gov!nosc!crash!pro-canaveral.cts.com!gandalf From: gandalf@pro-canaveral.cts.com (Ken Hollis) Newsgroups: sci.space.shuttle Subject: Collapsing Rocket Stages... Message-ID: <4902@crash.cts.com> Date: 10 Oct 90 06:16:16 GMT Sender: root@crash.cts.com Lines: 22 Greetings and Salutations: From: Mike.McManus@FtCollins.NCR.com (Mike McManus) Subject: Atlas (was Re: For All Mankind) Writes: If I recall correctly, several years ago (8-10?), there was an Atlas on display at the USAF Museum in Dayton that had a pressurization system that was used to maintain it's "posture". At some point, the system failed, and the whole thing collapsed like a paper cup. I can remember seeing the picture on the front ----->End of quote The integrity of the Centaur half of the Atlas Centaur rocket (Atlas being the lower booster, Centaur being the upper booster) is maintained by the internal pressure of the stage. The wall thickness is about as thick as a dime. This saves weight as no excess structural support is required. This also causes problems, for example a few years back a platform punched a hole in the side of the stage and the Centaur just crumpled. Ken Hollis