To the question of calculating the run distance of the lightweight WIG plan at the stage of preliminary design

Abstract

The work is devoted to the study of the take-off characteristics of high-speed vessels of the WIG type. On the basis of the conducted research, a method for calculating the range of range was developed, considering different types of launch devices during take-off from the water surface. The development of such a method is conditioned by the presence in the design of WIG plans of the problem of determining the most advantageous starting device at takeoff from water under given operating conditions. The proposed method is based on the law of momentum conservation. The method takes into account aerodynamic, hydrodynamic characteristics of WIG plans, characteristics of the power plant from the ship’s speed. According to the results of this method it is possible to make a decision on the choice of the most advantageous starting device, providing the performance of the technical task at the stage of preliminary or conceptual design of the ekranoplan. Verification of the technique was carried out using data obtained at the stage of running tests of Orion-10 and Orion-20 WIG plans. The satisfactory coincidence of calculation results and experimental data was obtained.