直升机动作难度7 个等级 第一级 (Lev el I) Take-off(起飞) Stationary Hover(静止停悬) Hover Laterally(水平移动) Multiple-level Hover(多重高度停悬) 3/4 Rear View Hovering(45°角停悬) Full Lateral View Hovering(侧面停悬) Diagonal Hovering(对角停悬) Circle Hovering 第二级(Lev el II) Taxi Out(水平滑行) Climb-Out(垂直爬升) 90 Degree Turns(90°转向) Flying Box(矩形飞行) 180 Degree Turns(180°回转) Straight and Level Flight(水平直线飞行) Figure of Eight - Constant Heading, Hovering(机头定向8字飞行) Figure of Eight - "Lazy 8"(水平快8字飞行) Figure of Eight - Flying(水平8字飞行) Traffic Pattern Approach to Landing(小角度降落航道) Translational Descent(大角度降落航道) Landing(著陆) Stall Turn(180°失速倒转) Inside Loop(内浸斗) Pirouette(原地旋转) 第三级(Lev el III) Nose-in - Hover(对面停悬) Nose-in - Circle(机头向内水平圆) Nose-in - Take-off(对面起飞) Nose-in - Landing(对面降落) 540 Stall Turn(540°失速倒转) Horizontal Roll(水平侧滚) Immelmann