A Boeing 787 Dreamliner aircraft, operated by Qatar Airways during the 13th Dubai Airshow at Dubai World Central. production costs for the superjumbo have fallen. Duncan Chard / Bloomberg
A Boeing 787 Dreamliner aircraft, operated by Qatar Airways during the 13th Dubai Airshow at Dubai World Central. production costs for the superjumbo have fallen. Duncan Chard / Bloomberg

Dreamliner to provide lift for Boeing even if 777 output hits downdraught