Hydrogen-Powered Ion Tiger Sets 26-hour Flight Endurance Record

November 30, 2009
Ion Tiger set a 26-hour flight endurance record on November 16 through 17. Credit: Naval Research Laboratory

The Naval Research Laboratory's Ion Tiger, a hydrogen-powered fuel cell unmanned air vehicle (UAV), has flown 26 hours and 1 minute carrying a 5-pound payload, setting another unofficial flight endurance record for a fuel-cell powered flight. The test flight took place on November 16th through 17th.

The electric fuel cell onboard the Ion Tiger has the low noise and signature of a battery-powered UAV, while taking advantage of hydrogen, a high-energy fuel. Fuel cells create an electrical current when they convert hydrogen and oxygen into water and heat. The 550 Watt (0.75 horsepower) fuel cell onboard the Ion Tiger has about four times the efficiency of a comparable and the system provides seven times the energy in the equivalent weight of batteries. The Ion Tiger weighs approximately 37 pounds and carries a 4- to 5-pound payload.

The Ion Tiger fuel cell system development team is led by NRL and includes Protonex Technology Corporation, HyperComp Engineering, and Arcturus UAV. The program is sponsored by the Office of Naval Research.

This latest test improves on Ion Tiger's previous unofficial flight endurance record of 23 hours and 17 minutes that took place on October 9th and 10th.

NRL has now demonstrated that PEM can meet or surpass the performance of traditional power systems, providing reliable, quiet operation and extremely high efficiency. Next steps will focus on increasing the power of the to 1.5 kW, or 2 HP, to enable tactical flights and extending flight times to 3 days while powering tactical payloads.

Source: Naval Research Laboratory (news : web)

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not rated yet Nov 30, 2009
I would like to know how the price of this solution compares to other technologies.
not rated yet Dec 02, 2009
The price of this 'solution' is long term surveillance and quicker extermination of terrorists demons who have, along with soulless bankers, destroyed trillions of dollars of wealth in the US. It is a shame that the bankers cannot be targeted as they rape the poor and now the middle class. If you have a million dollars and lose half, you still have 1/2 million. If you have $20,000 and three kids and lose half, you are destroyed. I now understand why the little old ladies knitted as they watched the guillotine fall during the French Revolution. But I digress, this device is one of our growing arsenal of robotic devices designed to search and destroy...hopefully enimies of every class. Pax Americana!

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