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| Historical Lighthouses |
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| Intro |
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ALANYA LIGHTHOUSE |
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It was constructed at the Ottoman Empire period in 1880 by the French constructor to serve as a route finding aid for vessels navigating in the Mediterranean Sea. It was originally made as a stone tower of Fort Alanya and appears as if integrated with the Fort.
Its altitude above the sea level reaches 209 meters due to its being constructed over the old historical Fort on the highest elevation of Alanya. Height of tower reaches a distance of 6 meters.
The visual sight distance of the lighthouse, in which has the flashing character of Fl.W. 20 sec with red sector, is 20 nautical miles in Mediterranean.
Oil lamp has primarily been used and then high intense filament lamps work with LPCo as a light source and it is currently provided an illumination with the electric lamp of 500 W.
In order to be seen from the long distance by strengthen the light source, Four pieces cotodiyoptric cylinder lenses which has optical distance of 200 mm as a optic system has been used.
Quadrangle optical panels had placed on circular platform which float on bath of mercury. Fixed light source illuminates on focus and when the optic is rotated on the platform it will give out four flashes during the period of rotation
It has weight that move vertically down on steel wires in the tower. As the weight falls, so the clock is driven and when the weight reaches the bottom, the clock stops unless the weight is wound back up to the top of its travel. So the lighthouse keepers had to wind up their lighthouse optic clock with a large winding handle attached to the mechanism that was located immediately below the optical system. This system looks like clockwork mechanism at houses.
Lighthouse keeper still winds mechanism in every three hours.
Above mentioned mechanism and optical panels has been under protection and still using in service. Lighthouse and guardian house is being under protection as national heritage by General Directorate of Coastal Safety and Salvage Administrations. |
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