To prevent a tragedy that human beings have a dream of a vehicle canceling gravity and floating in the air and invented a rocket injecting a huge pillar of fire and flying by reaction thereof, and spend trillions yens to burn and kill dozens of people's lives by failure.

This device is a device for canceling gravity and injects high speed water from a downward nozzle rotating at high speed to obtain floating force canceling gravity by reaction thereof. Most part of huge floating force obtained by reaction of using a direction of a compound vector 8 obtained by high speed water ejected from the downward nozzle which can be eliminated can be eliminated by utilizing a structural advantage.