Lights and lighthouses Lights are very important

Lights and lighthouses

Lights are very important when navigating during dark hours.

Ships are exhibiting navigation lights in order to avoid collisions.

Lighthouses and other beacons show lights to guide ships.

These lights have their own characteristic pattern, consisting of flashes and eclipses.

This orange light is flashing once in a period of four seconds (Fl. 4 s. ). 2122

This red light is eclipsing once in 3 seconds (Occ. R. 3 s. ).

This East cardinal buoy has a group quick flashing light with a period of 15 seconds (Q(3)15 s. ).

This is an isophase light with a flash and an eclipse lasting equally long (Iso 2 s. ).

Lateral marks that indicate the limits of the fairway exhibit green and red lights.

Sector lights indicate safe approaches towards their position.

Both coloured sectors indicate that the ship is heading into danger and that an alteration of course is required.

Leading lights guide a ship on track while entering or leaving a port.

Leading lights consist of a front and a rear light. front rear

Direction lights also indicate the course to be steered. Their arc of visibility is restricted by their housing.

The narrow white sector of this direction light is flanked by coloured light sectors.

The Moiré effect light is a square box with a fixed light mounted behind a screen of vertical splines. The pattern of splines creates the effect of an arrow indicating the direction line.

In the daytime, lighthouses function as daymarks, having their own conspicuous construction, colour, height and elevation.

White tower, lower part granite, upper part brick, 34 m in height

White concrete tower, helicopter landing platform, red band, 31 m in height

Black round tower, yellow bands, 40 m in height

White round brick tower, red stripes, 15. 5 m in height.

Red pile structure, red and white lantern.

The elevation of a light refers to its elevation above sea level whereas height refers to the height of the structure itself. Height

A Light-float (Lft. ) is a floating equivalent of a lighthouse.

Light-floats are being gradually replaced by Large Automatic Navigational Buoys. (LANBY)

Some lighthouses, light buoys and lightfloats are fitted with sound signal devices.

Any actual changes in the function, characteristic or the position of lights are transmitted over radio

and NAVTEX as Maritime Safety Information.

Danish navigational warning number 273 from date and time 29 11 19 UTC December 2006. The waters South of Funen, Soeby harbour. The light sectors of the light Soeby in position 54 56’. 6 N 010 15’. 5 E are unreliable.

• Danish navigational warning no. 269 from 22 12 15. 27 UTC. Kalundborg fjord Gisseloere. The Gisseloere light in approximate position 55 40’. 2 N 011 04’. 6 E is inoperative.

Except of serving as landmarks for safe navigation, lighthouses have become landmarks in maritime folklore as well. Eddystone lighthouse P. S. Thank you for your attention !