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On a cold February day over Lake Erie in 1957, test pilot Joe Algranti made history when he switched one of the two engines on his Martin B-57B midflight to run on hydrogen rather than standard JP-4 jet fuel.
The National Advisory Committee for Aeronautics (NACA) experiment demonstrated for the first time the feasibility of using liquid hydrogen in flight for air-breathing jet propulsion. But it also hinted at a potentially troubling phenomenon.
Accessexclusive subscriber-only in-depthcoverage on this observation that merited a mere footnote 63 years ago, but today warrants closer attention as hydrogen takes on new importance in the search for sustainable aviation.
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