Flight vehicle operating method and operating system using same

A flight vehicle operating method for mooring the flight vehicle and adjusting flotation of the flight vehicle, the method comprising:

• an operation (a) of flying a flight vehicle toward a mooring unit located below the flight vehicle;
• an operation (b) of mooring the flight vehicle to the mooring unit by connecting the flight vehicle and the mooring unit to each other by a cable;
• an operation (c) of reducing a weight of the flight vehicle, increasing the flotage of the flight vehicle, or increasing the flotage of the flight vehicle while reducing the weight of the flight vehicle, by using a first flotation adjuster;
• an operation (d) of floating the flight vehicle at a suitable altitude in the air;
• an operation (e) of increasing the weight of the flight vehicle, reducing the flotage of the flight vehicle, or reducing the flotage of the flight vehicle while increasing the weight of the flight vehicle, by using a second flotation adjuster or a propelling unit of the flight vehicle;
• and
• an operation (f) of releasing the connection between the flight vehicle and the mooring unit and withdrawing the cable,
• wherein the mooring of the flight vehicle to the mooring unit comprises guiding the cable to the mooring unit by using a guide unit installed at an end portion of the cable,
• wherein the guide unit comprises a motor and a propeller, the motor and the propeller being controlled by a wireless signal or an automatic position control device to guide the end portion of the cable to the mooring unit,
• wherein the guide unit is integrated to the first flotation adjuster and the second flotation adjuster, and comprises a winding unit which winds or unwinds the cable, and
• wherein the guide unit rises or falls to change the weight of the flight vehicle and to guide the cable to the mooring unit while unwinding the cable or retract the cable from the mooring unit while winding the cable.