uas

Hydrogen to fuel long-distance drone for special ops

The U.S. Special Operations Command is going green with its purchase of a hydrogen-fueled robo-plane that can loiter in the stratosphere for up to five days at a time.

The high-altitude long endurance (HALE) Global Observer will cost $57 million for the first drone, with two more in the pipeline for an additional $108 million. The drone, or unmanned aircraft system (UAS), is powered by a hydrogen-fueled internal combustion engine designed and built by AeroVironment, which has already successfully tested a scaled down model during a five-day stretch in an altitude chamber above a simulated 65,000 feet.

The … Read more