Motor and aircraft

A motor comprising:

• a rotor rotatable about a central axis extending in an axial direction;
• a stator that includes a stator core having an annular shape surrounding the central axis;
• and
• a stator holder holding the stator,
• wherein the rotor includes:
• a cylindrical portion that is arranged on a radially outer side with respect to the stator and extends in the axial direction;
• a first plate portion that is arranged on a first axial side with respect to the stator and expands radially inward from a first axial end of the cylindrical portion;
• a second plate portion that is arranged on a second axial side with respect to the stator and expands radially inward from a second axial end of the cylindrical portion;
• and
• a side hole penetrating the cylindrical portion in a radial direction,
• the stator holder includes a holder through-hole, and
• the holder through-hole is arranged on a radially inner side with respect to the stator and penetrates the stator holder in the axial direction.