Artificial shuttlecock feather and shuttlecock

An artificial shuttlecock feather that is to be implanted in a circular ring shape into a base of a shuttlecock, the artificial shuttlecock feather comprising:

• a vane section;
• and
• a rachis section having one end in an axial direction of the rachis section fixed to the base and supporting the vane section provided to another end side of the rachis section,
• a hole being formed in the vane section so as to penetrate the vane section,
• a porosity of a first region of the vane section being lower than a porosity of a second region of the vane section, the first region spanning from an edge on the one end side in the axial direction to a predetermined position further toward the one end side than a center of the vane section in the axial direction, the second region spanning from the predetermined position to an edge on the other end side in the axial direction, a position of the predetermined position being based on a shape and a material of the vane section and a rigidity of the rachis section,
• the hole being an elongated hole formed oriented in a direction angled with respect to a width direction and the axial direction,
• the elongated hole being disposed at a location overlapping with an adjacent vane section, and
• wherein the predetermined position is a position of greatest pressure difference between one surface of the vane section and another surface of the vane section during flight of the shuttlecock.