The pilot of the balloon has control of the altitude (how high or low the balloon flies) and can alter its course by finding an air mass going in a slightly different direction.

• 热气球的驾驶员可以操控气球的高度(即热气球的飞行高低)，而且可以利用方向略有不同的气团，来改变热气球的飞行路线。