Astron Aerospace’s H2 Starfire hydrogen engine has set a new benchmark with its record 60% efficiency and zero emissions. Unlike conventional internal combustion engines, which are only 20% efficient, the H2 Starfire uses hydrogen fuel to produce energy and emits only water.

The engine operates at high temperatures of 1,400°F (760°C) and features a unique design with counter-rotating rotors made from aluminum and titanium. This design eliminates the need for water cooling, reduces complexity, and results in a frictionless operation with only 82 parts.

While the partial prototype shows promising results, the widespread adoption of this technology hinges on advancements in green hydrogen production. Astron’s breakthrough could significantly impact the future of sustainable transportation, offering an efficient alternative to traditional fossil-fuel engines.

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