In this paper, the space motion equation of WIG for the analyses motion characteristic in taking off and landing process is introduced.The motion have decoupled into longitudinal one and lateral one.

• 文章对地效翼船起降过程的特点进行分析，提出了适用此种情况的运动方程，将起降过程的空间运动分解为孤立的纵向运动与横侧运动。