288
Cape Collinson Lighthouse
The light at Cape Collinson was established on 1st March 1876, the year following the other two lighthouses. The reason for being later was that its apparatus was mistakenly sent to the Cape of Good Hope. The illuminating apparatus was fixed Dioptric of the Sixth Order. The focal plane of the light was 200 feet above mean sea level, and in clear weather it could be seen for a distance of eight miles. This lighthouse showed a white light on the bearings from N. 22 W. by East to S. 22 E. Ships heading for Victoria Harbour from the North and the Eastward were thus able to avoid Bokhara and Tathong Rocks, also the rocks outlying Sy Wan Bay by keeping the white light in sight. It also showed a red light from S. 22 E. by West to N. 22 W.20
When all three lighthouses were first in operation, vessels entering Hong Kong harbour were adequately provided with navigational aids. Gradually, as time passed, lighthouses were required to display their own distinguishing characteristics and to repeat these at shorter intervals for more frequent observation as the speeds of steamships increased. In the beginning of the 20th century an 18-knot ship could travel over a quarter of a mile every minute. The older optics that revolved at the speed of four minutes per revolution were replaced by new ones revolving at 15 or 20 seconds. This was made possible by floating the lantern in a mercury bath causing it to revolve with minimum friction. This new technique was installed in lighthouses built in the 1890s.
New lighthouses
In 1892 and 1893, after much discussion and negotiation between Hong Kong and China, lighthouses were built on the two best sites initially chosen to light the approaches to Hong Kong: namely on Gap Rock and Waglan.
As early as 1867, before the building of the first lighthouse in Hong Kong, Commander Reed, a naval surveyor, was instructed to investigate suitable locations for lighthouses to cover the port approaches. He proposed Waglan Island and Gap Rock, small islands to the south of Hong Kong Island en route to Singapore. However, as neither of the proposed locations was within Hong Kong waters, these recommendations were not pursued.21
288
Cape Collinson Lighthouse
The light at Cape Collinson was established on 1st March 1876, the year following the other two lighthouses. The reason for being later was that its apparatus was mistakenly sent to the Cape of Good Hope. The illuminating apparatus was fixed Dioptric of the Sixth Order. The focal plane of the light was 200 feet above mean sea level, and in clear weather it could be seen for a distance of eight miles. This lighthouse showed a white light on the bearings from N. 22 W. by East to S. 22 E. Ships heading for Victoria Harbour from the North and the Eastward were thus able to avoid Bokhara and Tathong Rocks, also the rocks outlying Sy Wan Bay by keeping the white light in sight. It also showed a red light from S. 22 E. by West to N. 22 W.20
When all three lighthouses were first in operation, vessels entering Hong Kong harbour were adequately provided with navigational aids. Gradually, as time passed, lighthouses were required to display their own distinguishing characteristics and to repeat these at shorter intervals for more frequent observation as the speeds of steamships increased. In the beginning of the 20th century an 18-knot ship could travel over a quarter of a mile every minute. The older optics that revolved at the speed of four minutes per revolution were replaced by new ones revolving at 15 or 20 seconds. This was made possible by floating the lantern in a mercury bath causing it to revolve with minimum friction. This new technique was installed in lighthouses built in the 1890s.
New lighthouses
In 1892 and 1893, after much discussion and negotiation between Hong Kong and China, lighthouses were built on the two best sites initially chosen to light the approaches to Hong Kong: namely on Gap Rock and Waglan.
As early as 1867, before the building of the first lighthouse in Hong Kong, Commander Reed, a naval surveyor, was instructed to investigate suitable locations for lighthouses to cover the port approaches. He proposed Waglan Island and Gap Rock, small islands to the south of Hong Kong Island en route to Singapore. However, as neither of the proposed locations was within Hong Kong waters, these recommendations were not pursued.21
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