.but a metal guide pin that jammed while engineers attempted to route a liquid hydrogen fuel line between the shuttle and its external fuel tank set the process back a few days
Iím not sure I would want to fly next to that tank. But it does show some of the things that wonít cause delays on an Ares. I still think NASA is on the right track.engineers are also hunting for the source of an odd sound heard when another shuttle fuel tank, reserved for the Endeavour orbiter, was hoisted into a vertical position.
As a side note from the same link:
NASA plans to perch Endeavour atop a second shuttle launch pad and ready it to fly within 25 days of an emergency, if required, Atlantis astronauts have said.
I didnít think a shuttle could last that long in orbit? What is there absolute maximum time in orbit, including safety margins?