Aerospace giant Boeing Co. (NYSE:BA) is reportedly in the early stages of developing a new single-aisle aircraft to replace the 737 Max Jet.A Meeting with Rolls-RoyceBoeing CEO Kelly Ortberg reportedly met with officials from Rolls-Royce Holdings PLC (OTC:RYCEF) to discuss developing a new aircraft engine earlier this year, according to the Wall Street Journal on Monday, which also said that the Seattle-based company has also been designing a flight deck for a new narrow-body aircraft.However, development o ...