Researchhydrogen combustionturbine enginepratt and whitneydesign space exploration
Pratt and Whitney Develops Hydrogen Steam Injected Engine
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8.9
Pratt and Whitney and the RTX Technology Research Center on Jan. 21, 2026 unveiled HySIITE, a hydrogen-steam-injected turbine concept, and DISCOVER, an AI design-exploration tool. Tests at RTX showed roughly 35% performance improvement and near-elimination of NOx while capturing about a gallon of water every three seconds; DISCOVER reduced a quattuorvigintillion-scale design space to 4,202 feasible architectures guiding compact-core, steam-injection designs.
Scoring Rationale
Strong empirical prototype and AI-driven discovery across significant aviation scope, but commercial deployment remains long-term and uncertain.
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