| The Naval
Research Laboratory, in collaboration with industrial partners, demonstrated
an unmanned aerial system (UAS) flight solely powered by fuel cell technology.
The flight of the 5.6-pound 'Spider-Lion" lasted 3 hours, 19 minutes and
consumed 15-grams of compressed hydrogen gas.
The project is a joint venture between
NRL's Chemistry and Tactical Electronic Warfare Divisions and Protonex
Technology Corporation. The flight was conducted with L-3 - BAI Aerosystems
at their Ragged Island facility on Maryland's Eastern Shore under weather
conditions of 65 degrees F, moderate winds, and light rain at takeoff.
The 100-watt fuel cell system was
designed and constructed at NRL largely using commercially available hardware
and a fuel cell stack and components developed by Protonex. The "Spider-Lion"
UAS was developed by NRL as a high-impact research platform for testing
fuel cell technology. Research and development continues aimed at developing
a fuel cell system capable of powering small military platforms currently
in the field or in advanced development stages requiring extended operation
that is not achievable using current battery technology.

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