Selecting this Toggle will cause Puff Smoke to appear on your as part of your plane such as engine smoke, jet contrails, tire touchdown puffs, etc.

• 把这个切换打开以后会让你的飞机后面放出烟雾，比如引擎烟雾、喷气式尾部、轮胎触地摩擦烟雾等。