Talk:Lightvessel

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Comment[edit]

Just wondering about the Mooring section on this page. I recently read The Lighthouse Stevensons by Bella Bathurst and I didn't get the impression from that book that Stevenson invented the mushroom anchor. What is the source for the claim that Stevenson invented the mushroom anchor?

As an aside, I wanted to add that I've often heard it said that many lightships were converted from old whale catchers. Is this true? ▫Bad▫harlick♠ 15:04, 22 January 2007 (UTC)
Fine as Bella Bathurst's work is as a human account it's short on technical material. A better account is Deborah Cadbury's "Seven Wonders of the Industrial World" p97. Chris55 (talk) 10:37, 6 July 2015 (UTC)

Lightship No. 61 "Corsica Shoals" on Lake Huron[edit]

In Shipwrecks of the 1913 Great Lakes storm there is an omission. This lightship was destroyed on Lake Huron.[1] It isn't listed, and it obviously should be. It's being offsite was a contributing factor in the loss of the Matthew Andrews, which is listed. [2] See also Huron Lightship. 7&6=thirteen () 20:57, 13 April 2008 (UTC) Stan

Notes[edit]

Crewless lightships[edit]

The article claims that automatic lightships were deployed in Britain in 1932. I can find no evidence of this: the first attempt at automation in Britain seems to be about 1972 with Lanby buoys (adapted from US originals) and was largely a failure. The citation is from an American magazine with a hand annotation saying that a British firm was involved in the manufacture. That is a very different matter. I can find US sources saying that these lightships were still being tested in 1950 and it would seem that they were only used, if at all, on more sheltered US inland waterways. Can anyone find better evidence? Chris55 (talk) 14:04, 6 July 2015 (UTC)

I am unsure as to your point. We have Reliable sources that say this. You apparently don't for the contrary position. as such, your assertion is WP:OR And this is covered by WP:Truth, I would submit. 7&6=thirteen () 14:23, 6 July 2015 (UTC)
My point is simply that the source doesn't say what is claimed. It's an American magazine talking about what I believe is an American development. However, as with much technology development, there's a gap between development and deployment. It doesn't talk about deployment. (And notes in the margin are not RS.) The British continued to (expensively) man lightships into the 1970s. Why did they do this if they had a usable substitute? Chris55 (talk) 20:52, 6 July 2015 (UTC)
Difference in priorities and operational philosophies.
Expect the unexpected. Preparedness for extremes, not the norm. A crewless lightship can't do a rescue. Even reliable technolofy can fail. Etc. There are many plausible explanations. 7&6=thirteen () 21:04, 6 July 2015 (UTC)
In that case I take it that you have no evidence at all for this extreme interpretation. Chris55 (talk) 21:43, 6 July 2015 (UTC)
I am not the proponent of the change, you are. I admit that my answer to your hypothetical question was just speculation. 7&6=thirteen () 12:36 7 July 2015 (UTC)
Part of this may be to a difference in terminology. Some might call a large fully automated unmanned installation a "light buoy", not a "light vessel". There is an ambiguity and a degree of overlap. This has resulted in a change in he use of symbols in navigational cartography. See "Paper for Consideration by CSPCWG/NCWG Light Vessels – Further Considerations" (PDF). 11th CSPCWG/1st NCWG Meeting, 27-30 April 2015. Rostock, Germany. April 27, 2015. Retrieved 7 July 2015.  line feed character in |title= at position 39 (help). It also may involve the slow automation of lighthouses generally in the UK, See Carradice, Phil (30 September 2014). "From the Skerries to the Smalls, the automation of Welsh lighthouses". BBC. Retrieved 7 July 2015.  7&6=thirteen () 12:56, 7 July 2015 (UTC)

────────────────────────────────────────────────────────────────────────────────────────────────────"Popular Mechanics" may be a reliable source, but someone's handwritten notes in the margin of a Googlebooks scan of it are certainly not. If there are no reliable sources for this claim it should be removed. -- Euryalus (talk) 20:31, 29 December 2016 (UTC)

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