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Boom swing

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Ian2019 View Drop Down
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Joined: 04 November 2019
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian2019 Quote  Post ReplyReply Direct Link To This Post Topic: Boom swing
    Posted: 02 June 2022 at 11:49
I have an issue of stopping the boom swinging when having the bimini up and motoring in very light winds or very strong winds with a sea swell. I have tried tethering it on where the kicker/vang is attached to the boom and the midship cleats but it still moves. I’m sure others have this problem and maybe solved it, so any suggestions would be grateful appreciated. 
Thanks in advance.
H385 #317 2014 Tivat Montenegro
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Mark_J1 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark_J1 Quote  Post ReplyReply Direct Link To This Post Posted: 02 June 2022 at 15:46
Yep! At the simplest I just attach a pair of sail ties to the boom end. Then attach with a rolling hitch to the back stay on either side. The rolling hitch allows a bit of adjustment to the tension if needed. Then you can ease off on the main sheet and/or vang. I also have a preventer line in place and that can be used in more extreme sea states. 

Mark
Hanse 400e "Grey Goose" Hull #31
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Ian2019 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian2019 Quote  Post ReplyReply Direct Link To This Post Posted: 03 June 2022 at 04:56
HI Mark
Without the binimi up I use the backstay deck eyes or the aft side deck eyes, but my binimi would chafe on the preventers when up. I thought of using the backstays but wondered about the sideways load on them, but will give it a go next time.
Cheers
 
H385 #317 2014 Tivat Montenegro
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Dubs2021 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dubs2021 Quote  Post ReplyReply Direct Link To This Post Posted: 06 August 2022 at 15:14
Thank you for posting this question and solution. I had the swing issue a couple times in heavy seas while motoring back into the harbor after sailing. I wondered if there was a way to "lock" the pulleys in the main sheet system, but now I will try the rolling hitch to back stay idea!
Hugh
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Wild View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wild Quote  Post ReplyReply Direct Link To This Post Posted: 06 August 2022 at 19:12
hello 
With the Bimini up We use the SB and BB preventers(bulletalie) to keep the boom on place.
From the attachment point of the main sheet on the boom via low frictions rings fixed on the turnbuckle of the mainshrout and lead backwards via a block on the padeye to the spinnaker winches and extra tension on the uphaul(topping lift?)

Wild and Wet
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kipwrite View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kipwrite Quote  Post ReplyReply Direct Link To This Post Posted: 07 August 2022 at 04:29
We run a line from the aft boom/main sheet attachment point to a snatch block at the rail, and then back to secondary winch. You can add a snatch block to the boom/main sheet attachment point and run a looped line as noted above, which makes removal of this line possible from the cockpit. 

Really annoying having the boom bounce around while motoring in rolling seas. This approach quiets things down nicely. 
Kipwrite
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Wild View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wild Quote  Post ReplyReply Direct Link To This Post Posted: 07 August 2022 at 08:27
unfortunately the newer Hanse don’t have side rails anymore only 4 padeyes.
It looks nice without but less practical 😩 and the padeyes are not always on the right position.
Wild and Wet
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415 Singapore View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 415 Singapore Quote  Post ReplyReply Direct Link To This Post Posted: 07 August 2022 at 10:08
We take a line down to the centre mooring cleat from the aft main sheet pulley connection on theboom. Pull the boom over 10-15 degrees and then tighten the main sheet
Works well
All the best
Paul
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kipwrite View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kipwrite Quote  Post ReplyReply Direct Link To This Post Posted: 07 August 2022 at 13:07
Wild: You might try a snatch block at the midship cleat. 

Edited by kipwrite - 07 August 2022 at 13:07
Kipwrite
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Wild View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wild Quote  Post ReplyReply Direct Link To This Post Posted: 07 August 2022 at 14:06
Kipwrite
For this job the padeyes are at a good position to lead the lines to the second winches . 😀
What I ment is: with a siderail you have much more options to fix snatch blocks like barbarhaulers for the spi  ect.
Wild and Wet
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