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Mark of lonely danger
Mark of Lonely Danger
Mark of alone danger denote small area navigational threat surrounded with sailing waters. Top sign is in shape of two black spheres and white light ( flashes by 2 in group).
Mark of alone danger description:
Mark on top
two black spheres above one another;
black with one or more wide horizontal red belts;
What ever, but different from lateral marks;
Recommended is post or bar;
flashes by 2 in group
Top sign of two spheres is most important characteristic of alone danger during the day, a should be used where ever it is possible; spheres should be as larger as they can be and clearly separated.