Boeing is reportedly developing a new single-aisle airplane that will eventually replace its 737 Max aircraft, which has faced a spate of safety-related issues.  The aerospace giant's CEO, Kelly Ortberg, met with officials at Rolls-Royce Holdings in the U.K. earlier this year to discuss a new engine for the aircraft, people familiar with the matter told The Wall Street Journal. Boeing’s commercial plane business has a new senior product chief whose prior role was developing a new type of aircraft. The perso ...