Study on the stability of longitudinal-controlled trajectory of submerged bodies

This paper is a continuance of the published paper "the study on the stability of transversal-rolling-controlled trajectory of submerged bodies".The influences of the controlled parameters and the characteristics of steering engine on longitudinal stability of ballistics of submerged bodies are studied emphatically.The methods of disposing ideal-controlled parameters are given with some calculation cases as well. The results show that the stabilities of ballistics parameters (including orientation angles and trajectory coordinates) are satisfactory.