tag:blogger.com,1999:blog-173959252222736577.post4484965136422968286..comments2023-10-24T04:44:19.608-05:00Comments on The Aerospace and Rocketry Blog: S-IVB The Third Stage or Earth Departur StageWhitney Richardhttp://www.blogger.com/profile/10924123383657436729noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-173959252222736577.post-27405267176778029282009-07-11T22:47:25.309-05:002009-07-11T22:47:25.309-05:00It's interesting that both Constellation progr...It's interesting that both Constellation program and the Direct team agree on one thing, the S-IVB's J2 engine.<br /><br />I first ran across the S-IVB spectrographic ID story when researching Titanium Dioxide as a rocket fuel opacifier. Love it. "That can't be an asteroid, it's painted..." Must be good paint too.KenKzakhttps://www.blogger.com/profile/05515143814425605764noreply@blogger.com