>Work is underway on the flight-qualified booster, getting ready for its big test next year at ATK in Utah. [Formerly Morton Thiokol, the company that Orrin Hatch axed the single-segment SRB design to protect. This design decision, and the famed management decision at MT to ignore engineer Roger Boisjoly's warnings on launch day, doomed the crew of STS-51-L.]
>The venerable RS-25 engine, built by Pratt-Whitney Rocketdyne… will power the SLS core stage.
>In order to fuel these engines, NASA called on the expertise at the Boeing Company to build the SLS core stage…
…and on and on.
In this arena cost inefficiency is a feature, not a bug.