I'm surprised we don't have the 773 but given that we have 744s I guess it is unnecessary even if it has better doc and casm.

Would it be fair to say that the airplane that Boeing designed for cargo is best at carrying tonnage?

Or look at this way, according to Boeing, 70% of the 107 748 orders are for the freighter version. With the 777 only 7% have been the freighter versions. Moving forward with the 777s 263 aircraft backlog 75% are 773s and only 17% are freighters.

Looks as if your right bar in the sense that the 773 is a winner, with lots of wins, more wins than the 747 while it's standing the kitchen making coffee in the morning. But when it comes to the heavy tonnage flying the 747 is the winner, with more wins. If you're route can take 400 passengers the 747 is there.

http://active.boeing.com/commercial/...&pageid=m15525