At the White House on Monday, Boeing formally launched its newest airplane, the large freighter version of the 777X passenger jet, with a big order for the plane from Qatar Airways. The new jet represents an essential move by Boeing to hold onto its dominant position in the world air cargo market under new pressure from rival Airbus, which launched its own A350F large freighter in November. In a statement, Stan Deal, CEO of Boeing Commercial Airplanes, noted that Boeing provides over 90% of the world’s dedicated freighter capacity. “With global supply chains under pressure and high demand for …