Rolls-Royce Begins Building UltraFan Demonstrator
Rolls-Royce has started manufacturing fan blades for its UltraFan demonstrator engine in Bristol, U.K., the company announced on Tuesday. According to Rolls-Royce, the composite blades are the largest in the world with a diameter of 140 inches. The company says the UltraFan engine will offer a 25 percent reduction in fuel and emissions along with […]