Why are the unmanned supply missions attached to the ISS by capture and berthing, while the manned Dragon capsule will have a conventional docking port? Wouldn't it be easier to let the Dragon dock like the Progress freighters do?
IIRC the berthing port hatch is bigger, so you are less constrained on the size of items being transferred.
This is why despite the fact the shuttle could dock to the station, it transferred cargo via berthed MPLMs that were manipulated into position using Canadarms.
Last edited: