FutureFlight
Liquid Hydrogen Fuel Drone Tests Could Clear the Way for Larger Aircraft
GKN Aerospace used a proton exchange membrane fuel cell stack to test the use of liquid hydrogen fuel on a ground-based testbed representing a search-and-rescue drone.
GKN Aerospace used a small-scale uncrewed air system to evaluate liquid hydrogen fuel propulsion systems.
GKN Aerospace used a small-scale uncrewed air system to evaluate liquid hydrogen fuel propulsion systems that could eventually power larger aircraft. (Image: GKN Aerospace)

GKN Aerospace has delivered its first ground-based demonstrator for a liquid hydrogen fuel system. While the first unit is for a small uncrewed air system (UAS) intended for search-and-rescue use, the company says the technology demonstrator could prove to be a significant step as continues its work on much larger hydrogen-powered aircraft, including passenger-carrying airliners.

Over a 12-month period, GKN and Filton Systems Engineering designed, built, and tested the demonstrator in the UK as part of the government-funded Safe Flight project. This is intended to find environmentally sustainable ways to increase the endurance of search-and-rescue missions.