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19-04-2008, 04:29
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#1
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Registered User
Join Date: Jan 2008
Location: France
Posts: 103
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Rolling at anchor
On one of the threads, it was said that all monohulls roll at anchor. Noow that was a problem I had 30 years ago with my displacement cruiser in Portsmouth harbour where the traffic had us rolling all night. The cheap and nasty system which worked for me was th lash a ladder (the one we used as a gangplank) across the foredeck ahead of the coachroof, to the ends of which 2 galvanised buckets were fixed with about 6 ft of chain ( I hope that I have attached a very basic sketch). This Fred Karno setup certainly damped the rolling and didn't cost a lot. Any comments on why it was a bad idea welcomed.
Brian Owen
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19-04-2008, 05:07
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#2
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Now on the Dark Side: Stink Potter.
Join Date: Aug 2003
Location: Ft. Lauderdale
Boat: 2001 Albin 28TE.
Posts: 3,874
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Easier to attach a line to yer anchor chain, run the line aft to a cockpit winch, then winch the bow in the swells..No more rolling at anchor..
Tor explain's it better on his site:
Tor Pinney's Homepage - A Cruising Sailor's Homeport
__________________
Life is sexually transmitted
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19-04-2008, 05:49
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#3
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cruiser
Join Date: Aug 2005
Location: No longer post here
Boat: Catalac Catamaran
Posts: 2,462
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Is it me, or does your diagram kind of look like a trimaran?
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19-04-2008, 06:42
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#4
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Registered User
Join Date: Jan 2008
Location: France
Posts: 103
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rolling at anchor
CSYman. Why didn't I think of that??
One guy said that it looked as if I was trying to drown a couple of window cleaners!
Rick, I did hope that the buckets might float and would help me reach planing speed - no such luck!
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19-04-2008, 07:13
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#5
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Registered User
Join Date: Mar 2006
Location: Nevada City. CA
Boat: Sceptre 41
Posts: 3,850
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Looks good to me. Since its done I can't think of why I would change it but I like the idea of those heavy black feed buckets and rope rather than chain.
__________________
Fair Winds,
Charlie
Between us there was, as I have already said somewhere, the bond of the sea. Besides holding our hearts together through long periods of separation, it had the effect of making us tolerant of each other's yarns -- and even convictions. Heart of Darkness
Joseph Conrad
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19-04-2008, 09:01
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#6
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cruiser
Join Date: Nov 2004
Posts: 4,525
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Quote:
Originally Posted by rickm505
Is it me, or does your diagram kind of look like a trimaran?
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I'm glad somebody said it! ha ha
I was choking back that one myself.
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19-04-2008, 12:15
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#7
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Registered User
Join Date: Feb 2008
Location: Eastern Seaboard
Boat: Searunner 34 and Searunner Constant Camber 44
Posts: 949
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Quote:
Originally Posted by bg9208
Any comments on why it was a bad idea welcomed.
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You’re talking about a flopper stopper.
Not really sure it's bad idea other than it looks like the Clampetts moved in. There’s a good deal about them on the web. Some are stainless with louvers, some are plastic, some are flat, some are cone shaped. And now, the Home Depot version
__________________
Regards,
Maren
The sea is always beautiful, sometimes mysterious and, on occasions, frighteningly powerful.
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19-04-2008, 12:56
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#8
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Registered User
Join Date: Jan 2008
Location: France
Posts: 103
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rolling at anchor
Thanks Maren, how long has the flopper stopper been on the market?
Looks like someone pinched my idea, tarted it up and charges $650 for it. Apart from the ladder, buckets and a bit of spare chain which I had to hand anyway, it cost me 4 galvanised shackles. It was, I admit, a bit Wright brothers early work but it worked, wasn't pretty but what the h*** neither is the space shuttle. Do like the much simpler idea of winching the stern around using the anchor rode only wish I'd thought of that.Still working on my low tech low cost RO system and when it's running I'll post sketch, can never be bothered to fire up Autocad any more. Lack of straight lines is more artistic don't you think?
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19-04-2008, 13:36
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#9
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Registered User

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 8,462
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The "at anchor" flopper stoppers usually benefit from having a valve or folding mechanism that allows the "fish" to drop quickly but then closes (in the case of the valve) or opens (folding type) when the fish is lifting. This keeps the weight on the line so you don't get any sudden loads on the lines and helps keep the motion smooth and quiet.
Using whisker poles can help you get the fish out farther so the flopper stoppers are more effective and you don't damage your topsides.
A fish hung from the bow can help moderate hobby horsing at anchor as well.
Skewing the boat into the waves as mentioned above helps but if you have wave trains coming from different directions the flopper stoppers may still be required.
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19-04-2008, 17:18
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#10
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Registered User
Join Date: Feb 2008
Location: Eastern Seaboard
Boat: Searunner 34 and Searunner Constant Camber 44
Posts: 949
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Quote:
Originally Posted by bg9208
Thanks Maren, how long has the flopper stopper been on the market?
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It's not just one thing. Sort of like saying how long has the winch been around (self tail or not? Capstan included or not?) I suspect they started like your idea. And if you want one, whip up the drawings and take it to a metal fabrication shop.
Quote:
Still working on my low tech low cost RO system and when it's running I'll post sketch, can never be bothered to fire up Autocad any more. Lack of straight lines is more artistic don't you think?
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Oh, I don't think you should let not wanting to fire up AutoCad slow you down ... there are a number of people still smiling at your last drawing
__________________
Regards,
Maren
The sea is always beautiful, sometimes mysterious and, on occasions, frighteningly powerful.
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19-04-2008, 17:23
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#11
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Registered User
Join Date: Feb 2008
Location: Eastern Seaboard
Boat: Searunner 34 and Searunner Constant Camber 44
Posts: 949
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Quote:
Originally Posted by DeepFrz
A fish hung from the bow can help moderate hobby horsing at anchor as well.
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Hunh... I hadn't heard of that. Learn something new every day.
__________________
Regards,
Maren
The sea is always beautiful, sometimes mysterious and, on occasions, frighteningly powerful.
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19-04-2008, 17:46
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#12
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Registered User

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 8,462
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Quote:
Originally Posted by DeepFrz
A fish hung from the bow can help moderate hobby horsing at anchor as well.
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Ah, just to be clear, I meant "fish" as in "flopper stopper fish"...<BG>
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19-04-2008, 19:09
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#13
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Registered User
Join Date: Mar 2003
Location: Wherever the boat is!
Boat: Marine Trader 34DC
Posts: 4,619
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20-04-2008, 00:58
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#14
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Registered User
Join Date: Feb 2008
Location: Eastern Seaboard
Boat: Searunner 34 and Searunner Constant Camber 44
Posts: 949
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Quote:
Originally Posted by Chuck Baier
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The link I put up includes that one, which is what I was thinking about but the photo was small and I just can't stand the constant use of ... kewl. (alright ... there, I said it)
kNo whAT I MeAN dUDez?
__________________
Regards,
Maren
The sea is always beautiful, sometimes mysterious and, on occasions, frighteningly powerful.
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20-04-2008, 01:18
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#15
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Registered User
Join Date: Jan 2008
Location: France
Posts: 103
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Roling at anchor
Soooo! glad that we cleared that one up - saved me many wasted hours hanging a herring over the bow on a bit of string and waiting for the vertical motion to stop phew!
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