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A Few Rules of Navigation:
Before transiting the Canal, the vessel should be provided with a
searchlight (projector) complying with the following conditions and
(1) It should be placed on the bow in the axis of the vessel and show the
(2) Specifications are as follows:
a) Minimum range of radiation of single beam 1800 m. ahead
(Brightness of 1 LUX approx, at the atmospheric transmission factor
T = 0.85).
b) The power of the lamp must give a luminous intensity of single light
beam not less than 3 x 10 (3 million) candles, which is equivalent to
a high efficiency incandescent lamp of:
1 - 2000 watt for vessels up to 30000 SC.G.T.
2 - 3000 watt for vessels over 30000 SC.G.T.
3 - Or any kind of lamps which that fulfills the specifications,
under item (2) above and to be of the non explosive type.