NASA, European Space ... Mode 2 is the ballistic, “untargeted abort splashdown,” and Mode 4 is an ATO. Orion was originally developed to launch on the Constellation Crew Launch Vehicle ...

but the vehicle was certified to make an abort landing for a single-engine failure any time during ascent.) The DCUs for each of the three Space Shuttle Main Engines (SSME) were fully redundant to ...

While their latest launch officially broke the record for fastest reflight of a space vehicle ... modes were considered unlikely at best. Failure was truly not an option with some of the Shuttle ...