Method for supplying an air bearing of a flight propulsion system by means of a fuel cell system, and flight propulsion system

A method for supplying an air bearing of a flight propulsion system via a fuel cell system having at least one anode and at least one cathode as well as a process gas supply for supplying the anode and cathode with fuel and ambient air and for discharging spent process gases, the method comprising:

• supplying the process gas from the process gas supply of the fuel cell system to the air bearing as bearing gas.

A flight propulsion system comprising:

• a fuel cell system having at least one anode and at least one cathode as well as a process gas supply for supplying the anode and the cathode with fuel and ambient air and for discharging spent process gases, and further including an air bearing supply for an air bearing, the air bearing supply being connected to the fuel cell system;
• and
• at least one supply line from the process gas supply to the air bearing, a process gas suppliable via the at least one supply line from the process gas supply of the fuel cell system to the air bearing as bearing gas.