Abstract: The present disclosure provides modular hydrogen-fuel storage assemblies with an external form factor corresponding to Unit Load Device (ULD) cargo containers, allowing the assemblies to be easily loaded into and stored in a cargo bay area of an aircraft. Each assembly can house one or more hydrogen fuel tanks containing liquid and gaseous hydrogen, which can be used to power an APU or other power system of the aircraft. Each assembly can include an internal cradle system for securing the tanks within the assembly, a ground servicing panel for refueling, a quick connection assembly for quickly coupling the assembly to the APU or other power system, a cold box for managing various fluid flow, and an avionics bay for controlling the various components of the assembly.

Abstract: The present disclosure provides systems and methods for storing, transporting, and using hydrogen. In some embodiments, the method may comprise (a) storing hydrogen fuel in one or more fuel storage modules; (b) transporting the one or more fuel storage modules to a vehicle fueling site, wherein one or more hydrogen fuel compatible vehicles are located at or near the vehicle fueling site; (c) loading the one or more fuel storage modules into the one or more hydrogen fuel compatible vehicles, wherein the one or more fuel storage modules are configured to be releasably coupled to the one or more hydrogen fuel compatible vehicles; and (d) decoupling the one or more fuel storage modules from the one or more hydrogen fuel compatible vehicles after the one or more fuel storage modules are depleted or partially depleted.