A little oh BTW: Boeing is developing a 777-300ER freighter conversion. This freighter is aimed at the volumetric freighter market vs the density freighter marker targeted by the 777F. How does this relate to A380? The big reason for developing the freighter conversion is so that current 777-300ER operators have a secondary market they can sell their used -300ERs to. That's one of the big problems faced by operators of the A380: no freighter version and thus no secondary market.