Aircraft tail light, aircraft comprising an aircraft tail light, and method of operating an aircraft tail light

An aircraft tail light for being installed adjacent a hot gas exhaust of an aircraft, the aircraft tail light comprising:

• at least one light source for generating a light output of the aircraft tail light;
• and
• a heat transfer structure comprising a heat receiving portion, thermally coupled with the at least one light source for absorbing heat (H) from the at least one light source, and a heat dispensing portion for dispensing heat (H) from the heat transfer structure;
• wherein the at least one light source is arranged in an aircraft exterior portion of the aircraft tail light and wherein the heat transfer structure extends from the aircraft exterior portion of the aircraft tail light to an aircraft interior portion of the aircraft tail light, with the heat receiving portion being arranged in the aircraft exterior portion of the aircraft tail light and the heat dispensing portion being arranged in the aircraft interior portion of the aircraft tail light, and
• wherein the heat transfer structure comprises a plurality of heat transfer ribs extending at least partially into the aircraft exterior portion and at least partially into the aircraft interior portion of the aircraft tail light.