Shuttlecock velocity decay after smash and slice shots in badminton

Figure 3. Shuttlecock trajectory: x is the coordinate along the court, y is the altitude. Velocity decay with the distance r from the smash. Figure 4. Velocities of the CoM of the shuttlecock and of the cork. Figure 5. Deviation of the velocity of the CoM from the exponential law. Figure 6. Velocity decay after smash shot for Yonex AS20 shuttlecocks. Figure 7. Velocity decay after smash shot for plastic Yonex Mavis 300 shuttlecocks for different initial velocities V0. Figure 9. Speed decay of a AS20 V3/77 shuttlecock. The aerodynamic length is lower for the for a left-hander (LH) slice. Figure 10. Speed decay of a AS20 76/V2 shuttlecock. The aerodynamic length is lower for the right-hander RH reverse slice. Figure 11. Time-of-flight of a AS20 78/V4 shuttlecock after a smash shot with an initial velocity of 300 km/h. The time-of-flight increases by +50% for a smash of 11.5 m vs 10 m. Video 1. Smash stroke, performed by A.S. Rasmussen during the IFB 2025 with a Yonex AS50 77/V3 Video 2. Smash shot by C.-L. Wang during the IFB 2025. Video 3. Deformation of the plastic shuttlecock from an initial shape with 16-fold symmetry to square or triangular shape after smash. Video 4. slice shots and reverse slice shots performed by right-handers and left-handers.