River buoy RB-3B-1

River signs are day and night landmarks for navigators on inland waterways of the Russian Federation. The period of operation is summer. The buoys are intended for marking the edges of the ship's course on small and medium-sized rivers as reference points. The buoys are equipped with light-optical lights and power sources. Types, main parameters and dimensions of river floating navigation signs, type and colour of top figures, colour, nature and mutual arrangement of navigation lights by variants, as well as conventional designations of lights depending on their purpose meet the requirements of the interstate standard "GOST 26600-98 Inland navigation signs. General technical conditions (with Modification N 1)". and TU of the plant.