re: Docking hatches
There might be 2 Progress vehicles and 2 Soyuzes docked at any time, plus an Orion spacecraft...12 astronauts together in space!
I wonder what docking hatch could be convenient to Orion...
If the Shuttle is no more used, then Orion should dock where the Shuttle used to...but isn't there a size issue? The Orion docking hatch wouldn't be larger than the Soyuz one...
