357
COMMONWEALTH OF AUSTRALIA.
LIGHTHOUSE SERVICE.
1920. No. 14.
The Astronomical positions are only approximate unless seconds are given. The bearings are given both True and Magnetic, and those relating to lights are from seaward. The visibility of lights is that in clear weather. Fog signals are sounded only in thick or foggy weather. The elevation given is the height of focal plane above high water.
AUSTRALIA-EAST COAST.-INNER BARRIER ROUTE.
Port Douglas Light.-Intended alteration in Characteristics. Red Sector to be inserted.
MARINERS and others are hereby notified that the Fixed White Light on Island Point, Port Douglas, will be replaced by a Group Flashing Light with White and Red Sectors (U) on or about 1st October, 1920.
Position. On Island Point:-Lat. 16° 28' S., Long. 115° 28' E., on Chart No. 2924. Details.-The Fixed White Light will be replaced by a New Light having the under- mentioned characteristics :
Character-Group Flashing Light, with White and Red Sectors, showing
four flashes in quick succession every twenty seconds, thus:-
Flash
sec.
Eclipse
1 sec.
Flash
sec.
Eclipse
1 sec.
Flash
sec.
Eclipse
1 sec.
Flash
sec.
Eclipse
15 secs.
Sectors.-White from 151° (S. 35° E. Mag.) through South and West to 287° (N. 79° W. Mag.); Red thence to 331° (N. 35° W. Mag.); Obscured elsewhere.
Visibility.-White, 10 miles. Red, 6 miles.
Power-White, 1,000 candles.
Red, 100 candles.
Remarks. The light will be unwatched.
The light-keeper will be withdrawn.
The other details of the light will remain unchanged.
Note. No further notice will be given. Charts affected.-Admiralty Chart No. 2921
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2761
--Cape Grafton to Hope Islands.
-Coral Sea and Great Barrier Reefs,
Sheet II.
2759A--Australia, Northern portion.
Publications affected.-Admiralty List of Lights and Time Signals, Part VI, 1920,
No. 2731.
Australia Pilot, Vol. IV, 1917, page 206.
Sailing, Directions and other information for the Ports and llarbours of Queensland, 1920, pages 165 and 166.
MELBOURNE, 16th June, 1920.
1920. No. 15.
Rocky Islet Light. Intended alteration in Characteristics.
Signal Station to be discontinued.
Mariners and others are hereby notified that the Fixed White Light on Rocky Islet will be replaced by a Flashing White Light (U), and, further, that the Signal Station will be discontinued, on or about 18th October, 1920.