On 4/16/2010 1:59 PM, Brian Thorn wrote:

That assumes Dragon will be able to stay at ISS for 180 days. Will it?
If not, it is just a taxi and we need a lifeboat.

The DragonLab version is supposed to be able to stay up for two years
before reentry: http://www.spacex.com/downloads/dragonlab-datasheet.pdf
So they should be able to make Dragon stay usable for six months.

Pat