An ARL tour attendee observes an example of NRL’s to 3 kilowatt fuels cells for unmanned aerial vehicles.

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Photo credit: © RP Images / Alamy / Afripics
License: Licensed
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Keywords: air, america, archive, arl, armed, army, defence, force, forces, military, navy, nrl, reportage, service, serviceman, servicemen, soldier, states, united, usa