本程序包为vxLand提供的经典版的通用导弹、炮弹、火箭弹等的弹道仿真计算程序，适用于无控弹药，用户可以需要根据加入三点法、比例导引等导引方法，修改、扩充成相应的有控、制导模拟仿真弹道程序。

-This package provides the classic version of vxLand common missile, artillery shells, rockets and other ballistic simulation program for non-control ammunition, the user may need to add three-point method based on the ratio guidance and other guidance methods, to modify, expand into the corresponding a controlled, guided trajectory simulation program.