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Old 09-01-2019, 04:09 PM   #1
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Twisting flopper-stoppers ?

We tried out the Magna flopper-stoppers last week and I was surprised to see that they twisted so badly around the line up to the booms that the 3-strand started coming undone on one side and the (floating) retrieval-line got maybe 20-30 wraps around the 3-strand.

Is there a trick to stopping them from twisting ?

Thanks,



-Sven
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Old 09-01-2019, 05:55 PM   #2
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I have never used them but maybe the 3 strand twisted line is causing the twist of the flopper stopper? Have you tried a braided line?
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Old 09-01-2019, 07:02 PM   #3
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try inserting a bullet swivel between the line and the flopper stopper
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Old 09-01-2019, 08:03 PM   #4
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Are you asking about paravanes with birds in the water underway or at anchor floppers?
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Old 09-01-2019, 08:05 PM   #5
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Quote:
Originally Posted by Gulf Comanche View Post
Are you asking about paravanes with birds in the water underway or at anchor floppers?
At anchor Magna flopper-stoppers. The fish work great under way.
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Old 09-01-2019, 08:08 PM   #6
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Quote:
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try inserting a bullet swivel between the line and the flopper stopper
I considered that option but it wouldn't work with the retrieval-line which by design is attached to the plates themselves so you don't have to lift the flopper-stopper against the dynamic water pressure.
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Old 09-01-2019, 08:31 PM   #7
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My previous post was with the thought that the 3 strand may be stretching and as it stretches the strands unwind, maybe.
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Old 09-01-2019, 08:32 PM   #8
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I have also recently installed a Magma flopper stopper setup. Same problem. I'm using braided line.

I'm considering installing a swivel and not using the retrieval line. Lifting against water pressure can be done slowly, as I can use my halyard winch. The only negative would be if the line failed I'd have to dive to retrieve the flopper stopper.

Sven - A weak point on the Magma flopper stoppers is the spot welded hinges. If you haven't done so already, it is worth drilling and bolting the hinges with SS bolts and lock nuts. I've heard from several other users that the hinge attachment is a common failure.
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Old 09-01-2019, 08:40 PM   #9
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Quote:
Originally Posted by Comodave View Post
My previous post was with the thought that the 3 strand may be stretching and as it stretches the strands unwind, maybe.
I've been thinking about your suggestion, that's why I haven't commented yet. I could see how the pretty strong pull could cause the strands to want to 'unwind' and then when the pull is released it just snaps too fast to re-twist.

I'm still thinking ... thanks :-)
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Old 09-01-2019, 08:48 PM   #10
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I have also recently installed a Magma flopper stopper setup. Same problem. I'm using braided line.

I'm considering installing a swivel and not using the retrieval line. Lifting against water pressure can be done slowly, as I can use my halyard winch. The only negative would be if the line failed I'd have to dive to retrieve the flopper stopper.

Sven - A weak point on the Magma flopper stoppers is the spot welded hinges. If you haven't done so already, it is worth drilling and bolting the hinges with SS bolts and lock nuts. I've heard from several other users that the hinge attachment is a common failure.
Thanks, I'll definitely take a look at the welds.

Interesting that you are using braid. Dave's suggestion made sense so I was hoping that might be it.

We don't have any winches that we could use on LAGOM but since the retrieval line was all wrapped up around the main line I ended up pulling them both up as if there was no separate retrieval line. So, in calm conditions it can be done.

Thanks.



-Sven
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Old 09-01-2019, 09:12 PM   #11
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Sven,

Don’t know if it will work or not but it is something easy to try. I usually try the simple stuff first... Let us know. I don’t have flopper stoppers but have given some thought about the Magma ones. How well are they working for you? (Besides the spinning problem)
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Old 09-01-2019, 11:07 PM   #12
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On my commercial boats, I used a 3 way swivel. I never had an issue with twisting. I used chain from the swivel down.


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Old 09-02-2019, 05:16 AM   #13
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Auscan,
On my setup I have never experienced twist - but mine are home made AND have a line from the bow rail attached to the flopper....I will take a pic of it tomorrow in daylight
Regards Brett
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Old 09-02-2019, 05:25 AM   #14
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Chain or wire rope should cure the hassle.
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Old 09-02-2019, 10:43 AM   #15
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Quote:
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I donít have flopper stoppers but have given some thought about the Magma ones. How well are they working for you? (Besides the spinning problem)
They are definitely effective. They don't stop all rocking but they make our round bottomed hull very tolerable even in very rolly conditions. We deploy them off the paravane booms so they have maybe 8' of leverage. The first time we tried them we just hung them over the gunnels and they were predictably less effective and there were times when we had to hold on in the swells.



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Old 09-02-2019, 11:21 AM   #16
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I was wondering how effective they are when you donít have a boom. We donít have a boom so they may not be so good for us, thanks for the info.
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Old 09-02-2019, 01:17 PM   #17
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Quote:
Originally Posted by Lepke View Post
On my commercial boats, I used a 3 way swivel. I never had an issue with twisting. I used chain from the swivel down.
Did you have a retrieval line ?

Thx.



-Sven
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Old 09-02-2019, 01:49 PM   #18
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Quote:
Originally Posted by Trawler_traveler View Post
Did you have a retrieval line ?

Thx.



-Sven
Yeah, from the 3 way swivel top was to the pole, bottom to the flopper and center was the retrieval line. All heavy line or galvanized 3/8 chain. I rarely ran fast with the floppers out. When I did, I ran a line from the flopper to near the bow. I had the biggest floppers available and could troll across big swells with hardly any roll. When I first thru them out, they stopped the roll so suddenly it was like running aground.


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Old 09-02-2019, 02:17 PM   #19
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I rarely ran fast with the floppers out. When I did, I ran a line from the flopper to near the bow.
Ok we're talking about different things. It isn't the paravane fish that twist the line, it is the Magna flopper-stoppers like the ones in this picture .

Thanks.



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Old 09-02-2019, 03:06 PM   #20
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I've only just installed the setup for my Magma flopper stopper, but they do seem to be effective. (if I can sort out the tangling lines).

I measured the roll at anchor to be 8-10 degrees with a 2 foot swell. After deploying a single flopper stopper the roll reduced to 2-3 degrees in the same conditions.
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