Hydrogen jet plane
Long intakes. Separation ducts. H2O sperated. 40 m pr jet engine. Inline engines. Powerful mix of H and O.
A ch 10.000 MHz square. B ch 9.999 999 999 955 MHz square. 5.5 exa hz. H atom size. Splits H2O.
SST Hydra. Plus Mach.
Or subsonic.