Rolls-Royce has started manufacturing fan blades for its UltraFan demonstrator engine in Bristol, U.K., the company announced on Tuesday. The UltraFan is scalable form 25,000 pounds up to 100,000 pounds and features a new engine core architecture, advanced ceramic matrix composites and a “geared design to maximise high-thrust, high-bypass ratio engine efficiency”.
Collected and summarized from the source below by Minh Pham https://www.avweb.com/ownership/engines/rolls-royce-begins-building-ultrafan-demonstrator/