RT @Jefferson_MFG: BUILT IN BRITAIN: This is the largest jet engine in the world. Nearing completion at Rolls-Royce's Derby site, the UltraFan® demonstrator will soon be tested at the aerospace giant's new £90 million Testbed 80 facility. Full story: https://www.mtdmfg.com/news/rolls-royce-nearing-completion-of-worlds-largest-jet-engine/ #UKmfg🇬🇧

🐦🔗: https://nitter.eu/MargotLJParker/status/1549324610482720768