The invention provides improved measures for monitoring and manufacturing tanks for cryogenic liquids. It is proposed that the tank (22) is manufactured in a way that signal and power lines from a control unit (38) to sensors (34) of the cryogenic tank (22...

A hydrogen fuel system for an aircraft is configured to provide hydrogen fuel to the engines for propulsion. The fuel system also may provide hydrogen fuel to a fuel cell arrangement to generate electricity for use on the aircraft. The fuel cell arrangemen...

A collapsible fuel cell (38) for an aircraft includes an inner textile support substrate having an outer surface including one or more textile crease lines (42) forming a fold pattern (40) and an outer shell layer (58) conforming to the outer surface of th...