The December 2022 issue of IEEE Spectrum is here!

Close bar

NRL's UAV Sets 26-Hour Flight Endurance Record

The NRL's hydrogen-powered fuel cell unmanned air vehicle (UAV), the Ion Tiger, has set an unofficial flight endurance record for a fuel-cell powered flight of 26 hours.

1 min read
NRL's UAV Sets 26-Hour Flight Endurance Record

The Naval Research Laboratory of Washington, DC, reports that their Ion Tiger, a hydrogen-powered fuel cell UAV, has recently accomplished a 26 hour endurance test flight.

The Ion Tiger, as Automaton has reported in the past, is being used as a technology demonstration platform for their latest PEM fuel cell technology. It weighs approximately 37 pounds and carried a 5-pound payload during the test.

"NRL has now demonstrated that PEM fuel cell technology 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 fuel cell to 1.5 kW, or 2 HP, to enable tactical flights and extending flight times to 3 days while powering tactical payloads."

Follow the link to the NRL press release for more information.

The Conversation (0)

The Bionic-Hand Arms Race

The prosthetics industry is too focused on high-tech limbs that are complicated, costly, and often impractical

12 min read
Horizontal
A photograph of a young woman with brown eyes and neck length hair dyed rose gold sits at a white table. In one hand she holds a carbon fiber robotic arm and hand. Her other arm ends near her elbow. Her short sleeve shirt has a pattern on it of illustrated hands.

The author, Britt Young, holding her Ottobock bebionic bionic arm.

Gabriela Hasbun. Makeup: Maria Nguyen for MAC cosmetics; Hair: Joan Laqui for Living Proof
DarkGray

In Jules Verne’s 1865 novel From the Earth to the Moon, members of the fictitious Baltimore Gun Club, all disabled Civil War veterans, restlessly search for a new enemy to conquer. They had spent the war innovating new, deadlier weaponry. By the war’s end, with “not quite one arm between four persons, and exactly two legs between six,” these self-taught amputee-weaponsmiths decide to repurpose their skills toward a new projectile: a rocket ship.

The story of the Baltimore Gun Club propelling themselves to the moon is about the extraordinary masculine power of the veteran, who doesn’t simply “overcome” his disability; he derives power and ambition from it. Their “crutches, wooden legs, artificial arms, steel hooks, caoutchouc [rubber] jaws, silver craniums [and] platinum noses” don’t play leading roles in their personalities—they are merely tools on their bodies. These piecemeal men are unlikely crusaders of invention with an even more unlikely mission. And yet who better to design the next great leap in technology than men remade by technology themselves?

Keep Reading ↓Show less