FLYING BODY

摘要

PROBLEM TO BE SOLVED: To provide a flying body provided with a small and light buoyancy compensating device. SOLUTION: A machine body body 2 floated by buoyancy by floating gas is provided with the buoyancy compensating device 11 for compensating the reduction of buoyancy by leakage of the floating gas by generating hydrogen gas by water electrolysis and supplying hydrogen gas to the machine body body 2.