Aerial vehicle , comprising a plurality of rotors and a flight direction indication system , the flight direction indication system comprising: for each of the plurality of rotors , at least one rotor blade comprising a plurality of light sources arranged along a radial extension of the rotor blade ; a flight direction sensor for detecting a momentary flight direction of the aerial vehicle, and/or a flight direction signal input for receiving a flight direction signal indicative of a momentary flight direction of the aerial vehicle; and a control unit , coupled to the plurality of light sources of the rotor blades of the plurality of rotors ; wherein the control unit is configured to effect a coordinated control of the plurality of light sources of the rotor blades of the plurality of rotors , with the coordinated control yielding an image or a sequence of images across the plurality of rotors to an observer of the aerial vehicle ; wherein the control unit is configured to control the plurality of light sources of the rotor blades of the plurality of rotors on the basis of the momentary flight direction of the aerial vehicle , with said image or said sequence of images comprising a flight direction indication, indicative of the momentary flight direction of the aerial vehicle ; and wherein said image comprises a green sector in a right forward direction with respect to the momentary flight direction of the aerial vehicle , a red sector in a left forward direction with respect to the momentary flight direction of the aerial vehicle , and a white sector in a rearward direction with respect to the momentary flight direction of the aerial vehicle . for each of the plurality of rotors , at least one rotor blade comprising a plurality of light sources arranged along a radial extension of the rotor blade ; a flight direction sensor for detecting a momentary flight direction of the aerial vehicle, and/or a flight direction signal input for receiving a flight direction signal indicative of a momentary flight direction of the aerial vehicle; and a control unit , coupled to the plurality of light sources of the rotor blades of the plurality of rotors ; wherein the control unit is configured to effect a coordinated control of the plurality of light sources of the rotor blades of the plurality of rotors , with the coordinated control yielding an image or a sequence of images across the plurality of rotors to an observer of the aerial vehicle ; wherein the control unit is configured to control the plurality of light sources of the rotor blades of the plurality of rotors on the basis of the momentary flight direction of the aerial vehicle , with said image or said sequence of images comprising a flight direction indication, indicative of the momentary flight direction of the aerial vehicle ; and wherein said image comprises a green sector in a right forward direction with respect to the momentary flight direction of the aerial vehicle , a red sector in a left forward direction with respect to the momentary flight direction of the aerial vehicle , and a white sector in a rearward direction with respect to the momentary flight direction of the aerial vehicle . <EOS>