ISOLATED DANGER AIDS


DESCRIPTION

  • Black with one red horizontal band.
  • White light, group Fl(2) 5s or group Fl(2)10s (if equipped).
  • Two black spherical topmarks.
  • Lettered – no numbers.
  • White retroreflective material.

USER’S GUIDE
An isolated danger aid is moored on, near or installed above an isolated danger which has navigable water all around it.

Consult the chart for information concerning the danger (dimensions, depth, etc.). May be used to mark natural dangers such as small shoals or obstructions such as wrecks.

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