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Old 29 January 2011, 09:18   #11
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Yes it uspet me when I found out that the Royal Navy are doing away with paper charts! End of an era methinx!
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Old 29 January 2011, 11:37   #12
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12 miles or 24 miles makes no difference to RiB users, you can only see for 3-4 anyway
Not if the lighthouse is on top of a cliff!!
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Old 29 January 2011, 18:26   #13
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Not if the lighthouse is on top of a cliff!!
Ok, so a lighthouse rated at 12 miles could be visible from a lot further if it's on top of a cliff then??? Hehe! Yeah I think I sense the irony in that..........!
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Old 29 January 2011, 18:36   #14
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Ok, so a lighthouse rated at 12 miles could be visible from a lot further if it's on top of a cliff then??? Hehe! Yeah I think I sense the irony in that..........!
That's not what Pikey said.
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Old 30 January 2011, 04:33   #15
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Ok, so a lighthouse rated at 12 miles could be visible from a lot further if it's on top of a cliff then??? Hehe! Yeah I think I sense the irony in that..........!
Err no irony intended, just fact! Starovich said that "12 miles or 24 miles makes no difference to RIB users, you can only see for 3-4 anyway"
Which would be about right if the light was at sea level. However, most lighthouses I've ever seen tend to be on clifftops which puts them above the horizon of a viewer in a RIB. Ergo, the light would be visible to a person in a RIB from much further away than 3-4 miles. In fact about 12 in my guesstimation.
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Old 30 January 2011, 04:53   #16
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Light dues

I think it is commercially driven. Commercial vessels pay light dues which they have been questioning for years and no longer wish to pay for a service they do not need. The carriage requirements for commercial vessels specify the equipment they must carry and have backups of which make many of the ground based facilities defunct.

Pleasure vessels make no contribution towards these facilities but are probably the biggest user group.

I think it is only a matter of time before more lighthouses are switched off and are replaced with AIS transponders. This may even extend to channel separation buoyage. These cost a fortune to maintain but could be provided by a shore based transmitter (poss on Alderney) emitting a signal to show a symbol on the ECDIS delineating the TSS.
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Old 31 January 2011, 05:08   #17
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Ok, I formally ajolopise..... I was under the impression that the stated range was based on a 2m eyeheight and after a little research I now realise I am in error.

Sorry Pikey!
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Old 31 January 2011, 06:10   #18
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Ok, I formally ajolopise..... I was under the impression that the stated range was based on a 2m eyeheight and after a little research I now realise I am in error.

Sorry Pikey!
No worries
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Old 31 January 2011, 07:17   #19
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i never did think lighthouses lit up much of the sea in the first place ,,not as good as proper flood lighting or street lighting
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Old 31 January 2011, 08:21   #20
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The Northern Light House Board - did this in Scotland few years back and removed some navigational marks on the Forth.

Including Thill Rock outside our harbour in Elie, we been told they will not replace the steal beacon at Vows either.

As a club we are trying to find a cost effective way to re-mark the rock, so we remember where it is, and visiting yachts don't hit it.

They also sold Elie Light House to Forth Ports Authority and installed LED Light and removed the generator shed and external ladders to light house.

Comments have been made if Forth Ports own it, when will they build a housing complex, since this seems to be one of there major activities!

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