ED Decision 2013/011/R
(a) If the balloon is operated at night, illumination of controls, equipment and essential information is provided for the safe operation of the balloon.
(b) An Anti-Collision light system is installed which complies with the following:
(1) The Anti-Collision light consists of one or more flashing red (or flashing white) light(s) with an effective flash frequency of at least 40, but not more than 140, cycles per minute.
(2) The Anti-Collision light arrangement provides 360° horizontal coverage and at least 60° vertical coverage above and below the horizontal plane.
(3) The Anti-Collision light(s) are mounted on, or suspended from the balloon in order to identify the position of the envelope and gondola during night operation.
(4) At least one Anti-Collision light is visible from a distance between 100 m and 3 700 m (2 NM) at night under clear atmospheric conditions.
(5) The Anti-Collision light system can be switched on/off during flight.
(c) The night lighting will not impair the crews’ vision or performance during operation.
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