There is also this document which doesn't seem to have been updated since December 2010:http://www.nasa.gov/pdf/504982main_CCTSCR_Dec-08_Basic_Web.pdf
The launch of the next rotation mission can occur prior to the departure of the current increment crew working on the ISS, resulting in a handover period where two commercial spacecraft would be docked to the ISS for approximately 7-10 days. If the Commercial Partner has received NASA approval to fly non-NASA crew to the ISS, the CTS will need to provide food, water, clothing, and other logistics for these crewmembers for the docked timeframe, since NASA does not generally pre-position these supplies on the ISS.
I find the window requirements interesting: "3.10.15.1 The spacecraft shall have windows excluding hatch windows for piloting tasks for crew use during all flight phases.""3.10.15.2 The windows shall provide the unobstructed fields-of-view necessary to support crew-piloting tasks during all flight phases."I assume this means windshield-type windows, similar to Gemini, Apollo and Orion/MPCV.Soyuz uses a periscope, right? I guess that won't cut it for CCP. CST-100 has this feature baselined (one "forward window"), not sure how Dreamchaser does this docking tail-first. Blue Origin, who knows? As for SpaceX Dragon, haven't seen this in any available documents or concept art, seems like a non-trival change to Dragon's mold-line.
So we will see some nice changes to Dragon in future ;-)
Quote from: apace on 08/20/2011 02:48 pmSo we will see some nice changes to Dragon in future ;-)Sounds like unnecessary changes to me. Can anyone explain what's the point of this requirement?
Why the heck would they exclude a hatch window?
Quote from: Robotbeat on 08/20/2011 08:06 pmWhy the heck would they exclude a hatch window?If you open the hatch in flight, you cannot longer use the window to see through ;-) Haha.
Quote from: apace on 08/20/2011 08:29 pmQuote from: Robotbeat on 08/20/2011 08:06 pmWhy the heck would they exclude a hatch window?If you open the hatch in flight, you cannot longer use the window to see through ;-) Haha.Wouldn't the hatch be even easier to see through, then?
So any idea about the additional windows for Dragon?
Quote from: apace on 08/20/2011 08:03 pmSo any idea about the additional windows for Dragon?Assuming that a Gemini-like window is what the requirement dictates, I see a problem. The walls aren't steep enough.
This requirement (if set in stone) problem is even worse for Dreamchaser, since it will "back into" it's docking.
On Dragon it could be solved by adding a small window (or two) around the docking ring - there might be room for it since the IDSS(?) is smaller than CBM.
Quote from: Lars_J on 08/20/2011 09:25 pmThis requirement (if set in stone) problem is even worse for Dreamchaser, since it will "back into" it's docking.Rear view mirror
Quote from: apace on 08/20/2011 08:03 pmSo any idea about the additional windows for Dragon?Assuming that a Gemini-like window is what the requirement dictates, I see a problem. The walls aren't steep enough. Or am I wrong?
I find the window requirements interesting: "3.10.15.1 The spacecraft shall have windows excluding hatch windows for piloting tasks for crew use during all flight phases.""3.10.15.2 The windows shall provide the unobstructed fields-of-view necessary to support crew-piloting tasks during all flight phases."