PURPOSE: To extinguish fire in a multi-storied building or the like safely and securely by sending water to an aerial bucket by use of a pump and a nozzle mounted on a power car which is freely movable on the ground to be stored, and discharging water in the bucket by use of a pump and a nozzle moving in the air on a flying body.

CONSTITUTION: A first pump 2, and a first nozzle 4 are mounted on a fire engine 1, water fire fighting from a fire hydrant is pressurized by the first pump, and the water is sent by the nozzle 4 to a bucket 13 to be stored. This bucket 13 is suspended from a flying body 11 of unmanned control or the like. A second pump 12 and a second nozzle 14 are mounted on this flying body 11. Relative positions of the first nozzle 4 and the bucket 13 are computed by control of a control device 8 on the ground, and a direction of the nozzle 4 is controlled by an actuator 5 to maximize a water injection quantity to the bucket 13.