Shuttlecock
Construction and materials
in) in length. The diameter of the cork is 25 to 28 mm (0.98 to 1.10 in) and the diameter of the circle that the feathers make is around 58 to 68 mm (2.3 to 2.7 in).[citation needed] A shuttlecock is formed from 16 or so overlapping feathers, usually goose or duck, embedded into a rounded cork base. The cork is covered with thin leather. To ensure satisfactory flight properties, it is considered preferable to use feathers from right or left wings only in each shuttlecock, and not mix feathers from different wings, as the feathers from different wings are shaped differently.
Shuttlecock-4