Boeing's new chief executive Dave Calhoun has sent the aerospace giant back to the drawing board on proposals for a new mid-market aircraft, effectively shelving in their current form plans worth $15 billion-$20 billion that had been overtaken by the 737 MAX crisis. “We’re going to start with a clean sheet of paper again; I’m looking forward to that,” Calhoun said. (www.reuters.com) 更多...