In experiments, the bird body launched by a big air gun impacts the full scale windshield of the aeroplane to simulate striking between a flying bird and a flying plane.

Aerocraft is easy to impact with hailstone and may cause serious damages during its flight, so it′s necessary to investigate hail impact on aerocraft by trial system.

It also introduce the causing of shock wave in the water and the gas, and its spread in blasting hole, as well as its reflection and transmission and effects of rock.