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| Historical Lighthouses |
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| Intro |
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ŞİLE LIGHTHOUSE |
| Lighthouse Name |
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İt Is situated at the most critical point on the Anatolian side of the Bosporus. It was built at Ottoman Empire period in.1859 by French constructor.
This is the biggest lighthouse of Turkey, with a situation of 60 m above the sea level and it has a tower built in 110 cm thick knitted stones. Tower height is 19 meters. Tower was painted to white and black bands in order to seen well in daylight.
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.
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 1000 W.
In order to be seen from the long distance by strengthen the light source, Eight pieces cotodiyoptric cylinder lenses which has optical distance of 925 mm as a optic system has been used.
Octagonal 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 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 is look like clockwork mechanism at houses. Lighthouse keepers still winds mechanism in every second 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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