meiza - 16/8/2007 11:54 PMSurely a design approach was picked for the whole stage, long before the engine was even started to being built
meiza - 19/8/2007 2:56 AMMany stages have a skinny LOX tank with a big LH2 tank, . And Centaur is skinny the whole way.
neviden - 20/8/2007 11:04 AMIf ECB get's finished, would it replace ECA version?What would ECB cost be compared to ECA?Would ECB be able to place ATV into LEO and how much would it be able to lift to LEO?