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Robert H. Wilkinson
Joined: 26 Jan 2011
Posts: 1274
City/Region: Port Ryerse
State or Province: ON
Vessel Name: Romakeme IV
Photos: Romakeme IV
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jkidd
Joined: 23 Oct 2006
Posts: 1668
City/Region: Northern, Utah
State or Province: UT
C-Dory Year: 2007
C-Dory Model: 22 Cruiser
Vessel Name: Voyager
Photos: Voyager (JK)
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 Posted: Thu Jul 12, 2018 9:18 pm Post subject: |
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I start talking about lighted dock lines last year up at Yellowstone. I didn't think they would happen that quick. 
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Jody Kidd
KE7WNG
Northern, Utah
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Hunkydory
Joined: 28 Mar 2005
Posts: 2720
City/Region: Cokeville, Wyoming
State or Province: WY
C-Dory Year: 2000
C-Dory Model: 22 Cruiser
Vessel Name: Hunkydory
Photos: Hunkydory-Jay-and-Jolee
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| Posted: Thu Jul 12, 2018 9:28 pm Post subject: |
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Yep, one of the rare times I saw Les well hooked for a good laugh.
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Jay and Jolee 2000 22 CD cruiser Hunkydory
I will not waste my days in trying to prolong them------Jack London
https://share.delorme.com/JuliusByers |
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thataway
Joined: 02 Nov 2003
Posts: 21354
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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| Posted: Thu Jul 12, 2018 9:39 pm Post subject: |
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Apparently this was first announced in Dec. 2016, but I don't see any place where it is for sale even now. (Amazon says "currently unavailable". 10x stronger than steel--is that for comparable size (3/8")--where steel has a nominal strength of 16,600 lbs, or Safe load of 3,300 lbs? 3/8 nylon: 3,240, SWL of 270#...Even Amsteel or Dymeema in 3/8" is nominal strength of 19,600 lbs...So it is 6 to 8 x stronger than those?
Sounds like a great invention.
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Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL |
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ssobol
Joined: 27 Oct 2012
Posts: 3559
City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
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| Posted: Thu Jul 12, 2018 11:36 pm Post subject: |
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| Might seem like a good idea at first. However, this line just flows in the dark from stored solar energy. My guess is that at 4 am when you really need it, it won't be glowing at all. Especially if it is a couple of years old. |
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AstoriaDave
Joined: 31 Oct 2005
Posts: 994
City/Region: Astoria
State or Province: OR
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| Posted: Thu Jul 12, 2018 11:50 pm Post subject: |
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Searched hard for this. No sign of it for sale.
One issue with fluorescent (aka luminescent) materials is that they typically degrade on extensive exposure to sunlight, especially when the chromophores are bound to a polymeric material such as rope or line. All of us have purchased visibility materials such as the vests roadway flaggers wear, only to discover, two years out, that they no longer "glow in the dark" as well as they did when new.
I suspect this rope was pulled from the market when its performance in the hands of average users did not match up to the hype associated with its release.
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Dave Kruger
Astoria, OR |
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localboy
Joined: 30 Sep 2006
Posts: 4673
City/Region: Lake Stevens via Honolulu
State or Province: WA
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: 'Au Kai (Ocean Traveler)
Photos: 'AU KAI
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| Posted: Fri Jul 13, 2018 7:51 pm Post subject: |
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| Quote: | | ...especially when the chromophores are bound to a polymeric material... |
Sometimes I come to this site...and I feel like a moron. 
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"We can go over there...behind the 'little one'....."
Wife to her husband pointing @ us...from the bow of their 50-footer; Prideaux Haven 2013 |
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Robert H. Wilkinson
Joined: 26 Jan 2011
Posts: 1274
City/Region: Port Ryerse
State or Province: ON
Vessel Name: Romakeme IV
Photos: Romakeme IV
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| Posted: Fri Jul 13, 2018 11:39 pm Post subject: |
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| AstoriaDave wrote: | | pulled from the market when its performance did not match up to the hype |
Dave, wouldn't it be awesome if all companies did that!! 
Another thing I find funny is that on the Canadian Yachting website they say they will only review items that are readily available for sale. 
They do say it is UV protected although I do imagine its luminous ability will degrade over time. The bits woven into the rope are reflective so in a searchlight they would show up if the stored luminous energy had wore off.
They still have it listed on the companies website. I am tempted to email them. |
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AstoriaDave
Joined: 31 Oct 2005
Posts: 994
City/Region: Astoria
State or Province: OR
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| Posted: Sat Jul 14, 2018 1:02 am Post subject: |
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| localboy wrote: | | Quote: | | ...especially when the chromophores are bound to a polymeric material... |
Sometimes I come to this site...and I feel like a moron. |
Guilty. Busted on overuse of jargon. 
Chromophore is geekspeak for a feature in a molecule that responds to incoming light by releasing light of lesser energy. In practical terms, UV light, being of higher energy than visible light, is a good candidate for use in stuff you want to be luminescent, like that rope. If you hit that rope with a black light, it would luminesce like a mofo. Hit it with light from an ordinary light bulb, and not much happens.
Sunlight has both UV and visible components, but it is the UV that activates the rope's chromophores to luminesce.
Enough of that! |
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localboy
Joined: 30 Sep 2006
Posts: 4673
City/Region: Lake Stevens via Honolulu
State or Province: WA
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: 'Au Kai (Ocean Traveler)
Photos: 'AU KAI
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| Posted: Sat Jul 14, 2018 12:00 pm Post subject: |
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| Dave, you are being kind. I expected some "other" responses to my posting. There is a brain trust of immense talents/knowledge on this site. |
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