With the helicopter upright and flying backward straight and level from the left to the right , when the helicopter is directly in front of the pilot , push forward cyclic and execute a tail first inside loop 由左至右保持后退水平直线飞行，当直升机在操控者的正前方时，将升降舵打降舵执行内浸斗。
Fly straight and level form left to right as the helicopter is just about in front of the pilot , pull back cyclic , adjust the collective to maintain constant altitude and speed and hold the back cyclic as the helicopter completes one ( 1 ) full traveling tumbling back flip to upright 由左至右保持水平直线飞行，当直升机在操控者的正前方时，将升降舵拉升舵，控制主旋翼的螺距使直升机保持固定的高度及前进速度，向后翻滚一圈完毕。
Fly straight and level from left to right at a moderate speed as the helicopter is just about in front of the pilot , add extra collective momentarily , then simultaneously push forward cyclic , and adjust the collective to maintain constant altitude and speed and hold the forward cyclic until the helicopter completes one ( 1 ) full traveling tumbling front flip to upright 由左至右保持适当速度的水平直线飞行，当直升机在操控者的正前方时，瞬间加大主旋翼的螺距，同时将升降舵打降舵，控制主旋翼的螺距使直升机保持固定的高度及前进速度，直到直升机向前翻滚一圈完毕。
