It can carry more cargo than any space vehicle ever built except the Saturn V moon rocket . `` We have lots of customers for the second , third and fourth launch , '' he said , `` but they did n't have the risk appetite for the first flight . '' It should be ready for its first test flight in late 2013 . Comment:
It can carry more cargo than any space vehicle ever built except the Saturn V moon rocket . It should be ready for its first test flight in late 2013 . Comment: