Attribute: Value of nominal range
Attribute type: F
The nominal range at which an object can be seen or a signal detected.
INT 1: IB 45; IP 14;
S-4: 451.1; 471.7;
Minimum Value: 0
Unit: nautical mile (M)
Resolution: 0.1 M
14 for a nominal range of 14 nautical miles.
The nominal range is normally the luminous range of a light in a homogeneous atmosphere in which the meteorological visibility is 10 sea miles. (IHO Hydrographic Dictionary, S-32, 5th Edition, 4218)