Rolls-Royce pushed a 100% hydrogen jet engine to full power, and the hardest part of clean flight may be hiding inside the engine

This was not a one-off experiment built for a headline. The hydrogen work followed a staged path, beginning in 2022 when ...
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The M1 Abrams tank runs on a jet-style gas-turbine engine, not a diesel

The U.S. Army’s M1 Abrams main battle tank draws its power not from a conventional diesel engine but from the Honeywell ...