Study on the influence of hydro-ski load reducing performance of hydro-ski parameters

General coupling method of MSC. Dytran was used to simulate the water landing performance of a seaplane with and without hydro-ski, the comparison between the calculated results and the model test was carried out to prove the effective of the method using in this paper. The study on load reducing rule corresponding to some parameters such as length-width ratio, static load factor and deadline angle of hydroski was carried out by using the simulation method mentioned above. The results show that the load reduced ratio could be increased with the increasing of hydro-ski length-width ratio and the reducing of static load factor, with the deadline angle of hydro-ski about 15 to 20 degrees, the load reduced ratio could be 30% above.