A tank suitable for containing liquid hydrogen and suitable for use on a high altitude long endurance aircraft, wherein the tank has a non-spherical external surface 1 and at least one liquid hydrogen storage chamber 2 having at least one opening 3, where the internal hydrogen storage facing surface, which may comprise a hydrogen-impermable layer 5, forms an elongate body with two ends, defining an axis 7. At least one end of the elongate body is arranged so that the ratio of the diameter where the angle of the tank wall to the axis is 45 degrees to the maximum diameter, dmax, d45, is less than equal to 2/3, preferably less than 1/2. In some embodiments the tank is elliptical


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    Title :

    Fuel storage systems for unmanned aircraft


    Contributors:

    Publication date :

    2020-07-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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