SAO.IDE.110 Operating lights

Sailplanes operated at night shall be equipped with all of the following:

(a)  an anti-collision light system;

(b)  navigation/position lights;

(c)  a landing light;

(d)  lighting supplied from the sailplane’s electrical system to provide adequate illumination for all instruments and equipment essential to the safe operation of the sailplane;

(e)  an independent portable light for the pilot-in-command and any other crew member station.