DUBAI, United Arab Emirates (AP) — Long-haul carrier Emirates purchased 40 American-made Boeing 787-10 Dreamliners on Sunday at the start of the biennial Dubai Air Show, a $15.1 billion deal certain to please U.S. President Donald Trump who has touted the plane’s sales as a job creator in America. The deal appeared to surprise Boeing’s archrival Airbus, whose staff had attended a long-delayed news conference and left the room just moments before the announcement. Airbus has pinned hopes of continuing production of its double-decker jumbo jet on Emirates, the world’s largest operator of the aircraft which took delivery of its 100th A380 earlier this month.