Rolls-Royce Completes UltraFan Build
Rolls-Royce announced on Monday that it has finished assembling its UltraFan technology demonstrator engine. According to the company, the engine has been moved its Testbed 80 facility in Derby, U.K., in preparation for testing, which is slated to begin early next year. The UltraFan demonstrator has a fan diameter of 140 inches and is expected […]