Model enters in forward flight and begins at the center line the first quarter of a horizontal circle with minimum 20m diameter with consecutive axial rolls. After the first quarter of the circle, the model performs without hesitation a 90° pirouette (tail turns to circle center) and fly the second quarter with sideway rolls. After this second quarter of the circle, the tail turns again about 90° until the tail points in flight direction and the model starts a backwards rolling circle. After the third quarter of the circle the model performs again a 90° pirouette (nose turns to circle center) and continues the circle with sideway rolls. After the circle is completed, the tails turns 90° and exits the maneuver in horizontal forward flight. The model performs minimum 2 rolls, but always the same number of rolls in each quarter.