Laser supported propulsion of a micro-airplane with water-covered ablator is demonstrated and we succeed in flying a paper micro-airplane driven by a 590mJ YAG laser. The repetitive use of overlay structure is experimentally demonstrated with specially-designed water supply. The various transparent overlay is investigated by the CIP-based hydrodynamic code and experiments by pendulum and semi-conductor load cell. The momentum coupling efficiency of 5000 N･sec/MJ has been achieved by ORION experiments that agree with the simulation code. With the maximum efficiency 105N･sec/MJ predicted by the simulation, MJ laser can give the sound speed to 10 tons airplane. The concept can also be used for driving a micro-ship inside human body and a robot under the accidental circumstance of nuclear power in which large amount of neutron source makes electronic device useless.

Topics
Electronic devices, Hydrology, Airplanes, Orion, Neutron sources, Nuclear energy, Lasers, Hydrodynamic codes, Speed of sound, Semiconductors
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