Final milestone of an orbital crewed demonstration flightMission Duration: Minimum of 3 days on-orbit
The chosen spacecraft must demonstrate it can serve as a 24-hour safe haven during an emergency in space and be able to stay docked to the station for at least 210 days.
Quote from: Prober on 07/12/2012 08:01 pmQuote from: vulture4 on 07/11/2012 01:47 amWindow space might hurt the Dragon in the downselect. Both the Libery, Boeing and DC have a ton of window space.You seem to be confused about where DreamChaser's windows are.
Quote from: vulture4 on 07/11/2012 01:47 amWindow space might hurt the Dragon in the downselect. Both the Libery, Boeing and DC have a ton of window space.
ASAP member Mr. Bryan O‟Connor observed that there were a couple of interesting briefings, including one on how they dealt with a problematic technical requirement—manual flight control. Human rating requirements specify that manual control be available wherever it is appropriate. They had to examine this requirement carefully to see if it made sense to keep manual control as a capability for the commercial vehicles. As a result, this particular requirement may be modified significantly for this program. Orion is looking at the same requirement.
Interesting that people think it would have been safer to land on autopilot. We studied that extensively and there were several issues with the implementation of the shuttle autopilot and the supporting ground navigation aids. Every shuttle landing was manually controlled and they were all successful . . .
Buran's autonomous landing was extremely accurate, but made use of significant help from some extremely powerful radio beacons.
Quote from: baldusi on 04/04/2013 03:20 pmBuran's autonomous landing was extremely accurate, but made use of significant help from some extremely powerful radio beacons.Not to get into a whole semantic thing... but that's not what we used to call autonomous.
FWIW, a revision of CCT-REQ-1130, "ISS Crew Transportation and Services Requirements Document" showed up on NTRS recently:https://ntrs.nasa.gov/search.jsp?R=20170001943(Attached here, as well.)
Request for Information for Future Commercial LEO Destinations – Requirements and Standards:https://sam.gov/opp/ee10afc4b56c454391b80bd93a16f3a0/viewhttps://twitter.com/NASAProcurement/status/1708202595930489228Attached is Draft CLDP REQ-1130 and a related matrix document.