Document ID: chunk:federal_register_of_legislation:F2023L01286:reg:1993:p2
Version: federal_register_of_legislation:F2023L01286
Segment Type: reg
Provision Reference: reg 1993 (pt 2/2)
Character Range: 39430–41627

the requirements of modern navigation.
The auxiliary red danger light is shown to warn a vessel of her close approach to the shore. In thick
  weather it may not be visible. (Caution in Light List.)
Three light-keepers are stationed here.
Communication.- Telephone to Eden, 9 a.m. to 8 p.m. Visited quarterly by Government steamer.
  Coastal steamers fortnightly, weather permitting; contract under notice to expire.
Morse lamp at station, but of low power.
Fogs.- Not frequent; experienced chiefly in December and January.
Soundings.- The soundings on the chart in this locality are of a complete and suitable nature, and
  the only legitimate and unerring guide to the safety of a vessel in this vicinity is the use of the lead, giving the navigator a sure indication of his distance from the shore. A mariner who relies on sighting the auxiliary red light (already rendered worthless by the Caution in the Light List) as a means of keeping his vessel out of danger and neglects to use the lead, undoubtedly trusts to a false security, and hazards the safety of his vessel and the lives of those on board.

Recommended.-
    (a)    An occulting screen actuated by clock-work mechanism be inserted, converting the light to white, with red sectors, occulting every 12 seconds, thus – light, nine seconds; eclipse, three seconds.
    (b)    An 85 mm. incandescent mantle, illuminant vaporized kerosene, be installed, increasing the power of the white light to be approximately 30,000 c.p., and the red sectors to 7,000 c.p.
    (c)    The auxiliary red danger light be discontinued. (This was discontinued 1st January, 1913)
    (d)    The period of the fog signal be altered to two explosive rockets fired in quick succession every five minutes, and the present supply of rockets (1,000) proportionately increased. (This has been carried out, January, 1913.)
    (e)    Platform leading to danger light be removed. It is out of repair and not reliable.
    (f)      Lighting conductor be overhauled.
    (g)    Efficient Morse lamp be provided.

Alterations to the light
The following table details the changes made to the Gabo Island light since its exhibition in 1862.
Date          Alteration