Nick, you are assuming that 6400kg will be the final weight of the 139. I'm thinking that Agusta will be upping the MTOW at some point. Won't be for a while yet though, they don't have anywhere near enough fleet hours to be able to fully assess how the airframe would handle it. Interesting to note however that the 149, using same basic frame with different undercarriage, is rated for 7000kg. Word from a contact at Agusta was that some of the design improvements being made to the 149 (simpler retraction sequence on the main gear for instance), could be carried across to the 139. I certainly hope so.
jimma, I agree that it was a shame that Bell had to withdraw. With their product support behind it, things would be better than they are now!!!