The best bet so far for aircraft storage of hydrogen is as a supercooled liquid. This way it takes up little room, is no more 'unsafe' than current jet fuel storage.
Another benefit of this storage method is that it can be used to create liquid nitrogen before it is combusted, which can then be circulated around the wings/body of the aircraft to reduce drag, thus increasing speed and/or fuel efficiency even further.
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The best bet so far for aircraft storage of hydrogen is as a supercooled liquid. This way it takes up little room, is no more 'unsafe' than current jet fuel storage.
Another benefit of this storage method is that it can be used to create liquid nitrogen before it is combusted, which can then be circulated around the wings/body of the aircraft to reduce drag, thus increasing speed and/or fuel efficiency even further.