- Rolls-Royce presented its AE 2100 test engine.
- Rolls-Royce has entered into a multi- million-pound hydrogen engine.
- The AE 2100 is a turboprop and the Pearl 15 is a jet engine by Rolls-Royce.
- The tests have shown that a jet engine using hydrogen can be started up and run at low speed.
- This significant milestone on the path to net zero aviation by 2050
