To provide a method and a device for loading equipment and the like to an external bottom surface of a flight vehicle.

A pod storing the instrument and the like is formed in a boat shape wherein a fore-and-aft direction center line of the flight vehicle is substantially coincide. At an upper end portion, a peripheral edge is formed by an upper vertical structural material, and an upper lateral structural material is mounted to the upper vertical structural material so as to be orthogonal to the fore-and-aft center line of the flight vehicle. The upper structural material is made to directly or indirectly support a loading member through a vibration controlling member, and the instrument and the like are placed and fixed on the loading member, thereby mounting the pod on the external bottom surface of the flight vehicle. In regard to the structural member in the inside of a flight vehicle bottom, an upper mounting fixture is made to penetrate a bottom wall from a lower side to project out downward, and a lower mounting fixture is projected out upward from an upper structural member of the pod. The upper mounting fixture and the lower mounting fixture are made to penetrate a shaft member having an axis parallel with the fore-and-aft center line of the flight vehicle to be coupled. The mounting fixture lower than the mounting fixture positioned at the pod center portion is rotatably supported by a shaft portion having an axis parallel with a line orthogonal to the center line.