[ad_1]
The Rolls-Royce UltraFan demonstrator project successfully passed an internal development review that allowed the company to freeze the basic concept of the very high throughput and dual flow engine. UltraFan project leader Andy Geer said that reaching the "stage" means that the engine concept is locked and that we can move on to design and manufacture components."
Rolls-Royce aims for a dilution ratio of 15: 1, an overall pressure ratio of 70: 1 and a 25% improvement in fuel consumption. On first-generation Trent engines, UltraFan production engine versions would offer scalable thrust levels of 25,000 to more than 100,000 pounds.
Rolls-Royce is working toward a target date of 2021 to begin ground tests of An UltraFan engine development, which would incorporate all the end products of 12 new technology programs that the company is testing in five separate but parallel large-scale engine development projects: Rolls-Royce has already launched The UltraFan demonstrator's transmission test item (PGB) at its maximum design power of 70,000 shp – the highest power ever achieved by an aerospace gearbox, according to Geer. The company began testing the fourth UltraFan PGB test article in June and expects to begin testing the fifth PGB test article in September.
Source link
