what are the 3 types of visual distress signals?
Red Hand Flare A hand flare is a small stick which when activated, produces an intense red smoke or light without an explosion. The hand flare shall: be contained in a water-resistant casing; have brief instructions or diagrams clearly illustrating the use of the hand flare printed on its casing; have a self-contained means of ignition; and be so designed as not to cause discomfort to the person holding the casing and not endanger the survival craft by burning or glowing residues when used in accordance with the manufacturer’s operating instructions. The hand flare shall: burn with a bright colour; burn uniformly with an average luminous intensity of not less than 15,000cd; have a burning period of not less than 1 min,; and continue to burn after having been immersed for a period of 10 s under 100 mm of water. Rocket parachute flares As the name suggests, the equipment has a flare which is launched at minimum height of 300m in the air, where it self-activa...