Forums › General Discussion › Bent chain plates?

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    • #68388
      Dea Latis
      Participant

      Actually I am more concerned about twisted chain plates. Of those that have removed/replaced your chain plates, have you had any that were twisted? My two forward most plates are both twisted and a friend of mine is telling me it must have been done prior to installation (meant to be like that), and the force required to twist that steel would not have been transmitted through the rigging. Also, one of my back stay plates is slightly bent. Just wondering what others have found.
      Thanks
      Dave

    • #77442
      Hull152_Patrick
      Spectator

      Our mizzen forwards (or maybe it was shrouds) were bent and they appeared to
      have been done do before being installed. We just put them back in as-is
      after inspection by a rigger and polishing by us.
      Some relate blog posts:
      Chainplate before and after: http://deepplaya.com/?p=563
      Installing and bedding chainplates: http://deepplaya.com/?p=67

      -p
      —
      s/v Deep Playa | Pearson 424 Hull #152 | http://www.DeepPlaya.com | @DeepPlaya

      On Thu, Jul 28, 2011 at 2:18 PM, Dea Latis wrote:

      Actually I am more concerned about twisted chain plates. Of those that have
      removed/replaced your chain plates, have you had any that were twisted? My
      two forward most plates are both twisted and a friend of mine is telling me
      it must have been done prior to installation (meant to be like that), and
      the force required to twist that steel would not have been transmitted
      through the rigging. Also, one of my back stay plates is slightly bent. Just
      wondering what others have found.
      Thanks
      Dave


      Dave
      Dea Latis #18

      _______________________________________________
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      Post generated from Pearson424 Forum using Mail2Forum

      Owners no more...
      Thanks Dawn and Patrick!

    • #77443
      Dea Latis
      Participant

      Thanks Patrick. I was actually looking at your site before I posted this, yours look great. I’ll post my pictures to my site in the next day or two and you’ll see how twisted they are. One of them looks like a rotini noodle.
      Anyone else?

      Patrick_DeepPlaya wrote:
      Our mizzen forwards (or maybe it was shrouds) were bent and they appeared to
      have been done do before being installed. We just put them back in as-is
      after inspection by a rigger and polishing by us.
      Some relate blog posts:
      Chainplate before and after: http://deepplaya.com/?p=563
      Installing and bedding chainplates: http://deepplaya.com/?p=67

      -p
      —
      s/v Deep Playa | Pearson 424 Hull #152 | http://www.DeepPlaya.com | @DeepPlaya

    • #77444
      Paul Lefebvre
      Participant

      Dave

      One some of the earlier boats they twisted the forward chainplates so they would line up with the rig. Mine came out the same way and I thought they had been damaged underway. It wasn’t until I installed new straight ones that I realized they had been bent that way. When you install new plates, you will see that they don’t line up square with the slots in the hull. You can either redo the slots or build up the knee that they are attached to so they are square or have the new ones twisted to match. I chose to build up the knee with fiberglass to line them up properly.

      On the later hulls, they didn’t bother twisting the chainplates, so they are not exactly lined up. You would never notice it unless you are looking for it.

      Paul
      Boundless #28

      Quote:
      To:

      Post generated from Pearson424 Forum using Mail2Forum

    • #77445
      Paul Lefebvre
      Participant

      Dave

      One some of the earlier boats they twisted the forward chainplates so they would line up with the rig. Mine came out the same way and I thought they had been damaged underway. It wasn’t until I installed new straight ones that I realized they had been bent that way. When you install new plates, you will see that they don’t line up square with the slots in the hull. You can either redo the slots or build up the knee that they are attached to so they are square or have the new ones twisted to match. I chose to build up the knee with fiberglass to line them up properly.

      On the later hulls, they didn’t bother twisting the chainplates, so they are not exactly lined up. You would never notice it unless you are looking for it.

      Paul
      Boundless #28

      Quote:
      To:

      Post generated from Pearson424 Forum using Mail2Forum

    • #77451
      Dea Latis
      Participant

      Wow, thanks Paul. Maybe I’ll have someone NDT these and if they’re good I’ll reinstall the two twisted plates.

      Here’s the link to a couple of pics:

      http://www.dea-latis.com/2011/07/chain-plates/

      @Paul Lefebvre wrote:

      Dave

      One some of the earlier boats they twisted the forward chainplates so they would line up with the rig. Mine came out the same way and I thought they had been damaged underway. It wasn’t until I installed new straight ones that I realized they had been bent that way. When you install new plates, you will see that they don’t line up square with the slots in the hull. You can either redo the slots or build up the knee that they are attached to so they are square or have the new ones twisted to match. I chose to build up the knee with fiberglass to line them up properly.

      On the later hulls, they didn’t bother twisting the chainplates, so they are not exactly lined up. You would never notice it unless you are looking for it.

      Paul
      Boundless #28

      To:

      Post generated from Pearson424 Forum using Mail2Forum

    • #77453
      RichCarter
      Participant

      I put toggles just below the turnbuckles to account for any misalignment in the chainplates.

      My backstay chainplate was twisted. I have no idea how this happened. I replaced the whole thing because it was not strong enough.
      http://www.richardcarter.net/boat/TransomChainPlate/

      Rich


      Original Message


      Post generated from Pearson424 Forum using Mail2Forum

    • #77454
      Anonymous

      I have a sloop design and there is a huge load on the middle of the transom. I had cracks and a buckle to my stern and decided to go for two chainplates mounted port and starboard at the corners- a way more structurally sound position.  I will go by the boat today and post a photo of the design.

       
      Bill Emberley
      SV Running Tab

      Edit One Productions, Inc.
      2310 Clement Avenue
      Alameda, CA 94501

      Studio 510-814-9519
      Fax 510-814-6945
      Cell 415-279-1340

      ________________________________

      Post generated from Pearson424 Forum using Mail2Forum

    • #77455
      Anonymous

      Good idea, Bill. An added advantage is the ability to have two main
      backstays, one to each chain plate.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


      Quote:

      Original Message


      Post generated from Pearson424 Forum using Mail2Forum

    • #77456
      john stevenson
      Participant

      I replaced my standing rigging a few years ago. I regret I didn’t eliminate
      the delta plate on the Ketch back stay and go with two independent back
      stays to the main mast. Would have been about the same cost – a little more
      cable, but fewer fittings. I didn’t think of it until a few years later
      when berthed next to a similar-size ketch with two back stays.

      Regards,
      John Stevenson
      http://www.svsarah.com

      On Wed, Aug 3, 2011 at 1:46 PM, Silverheels wrote:

      Quote:
      Good idea, Bill. An added advantage is the ability to have two main
      backstays, one to each chain plate.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


      Quote:

      Original Message


      Post generated from Pearson424 Forum using Mail2Forum

    • #77457
      Hull152_Patrick
      Spectator

      Would have made for a better antenna too.

      -p

      —
      s/v Deep Playa | Pearson 424 Hull #152 | http://www.DeepPlaya.com | @DeepPlaya

      On Wed, Aug 3, 2011 at 11:49 AM, John Stevenson wrote:

      Quote:
      I replaced my standing rigging a few years ago. I regret I didn’t
      eliminate
      the delta plate on the Ketch back stay and go with two independent back
      stays to the main mast. Would have been about the same cost – a little
      more
      cable, but fewer fittings. I didn’t think of it until a few years later
      when berthed next to a similar-size ketch with two back stays.

      Regards,
      John Stevenson
      http://www.svsarah.com

      On Wed, Aug 3, 2011 at 1:46 PM, Silverheels wrote:

      Quote:
      Good idea, Bill. An added advantage is the ability to have two main
      backstays, one to each chain plate.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


      Quote:

      Original Message


      Post generated from Pearson424 Forum using Mail2Forum

      Owners no more...
      Thanks Dawn and Patrick!

    • #77458
      john stevenson
      Participant

      Yep, one less isolator too.

      Regards,
      John Stevenson
      http://www.svsarah.com

      On Wed, Aug 3, 2011 at 3:00 PM, Patrick “Peaboy” Walters <
      > wrote:

      Would have made for a better antenna too.

      -p

      —
      s/v Deep Playa | Pearson 424 Hull #152 | http://www.DeepPlaya.com | @DeepPlaya

      On Wed, Aug 3, 2011 at 11:49 AM, John Stevenson <

      wrote:

      I replaced my standing rigging a few years ago. I regret I didn’t
      eliminate
      the delta plate on the Ketch back stay and go with two independent back
      stays to the main mast. Would have been about the same cost – a little
      more
      cable, but fewer fittings. I didn’t think of it until a few years later
      when berthed next to a similar-size ketch with two back stays.

      Regards,
      John Stevenson
      http://www.svsarah.com

      On Wed, Aug 3, 2011 at 1:46 PM, Silverheels

      wrote:

      Quote:
      Quote:
      Good idea, Bill. An added advantage is the ability to have two main
      backstays, one to each chain plate.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


      Quote:

      Original Message


      Post generated from Pearson424 Forum using Mail2Forum

    • #77459
      Paul Lefebvre
      Participant

      I still have my rigging to replace. Any disadvantages to twin back stays. I assume you would have more weight and windage aloft, but I don’t know if that would be significant on our boats.

      Paul

      Quote:

      Post generated from Pearson424 Forum using Mail2Forum

    • #77460
      john stevenson
      Participant

      Paul,
      The lower sections of my back stay are 11/32″. I think the upper is 3/8″
      So weight difference would amount to the difference between one section of
      3/8″ cable and two sections of 11/32″ and a few less fittings. I doubt
      that would be significant given the low aspect of the ketch rig.
      That said, there must be reason Pearson used the delta plate. Given the
      additional fittings, which also add labor cost, it probably would have been
      cheaper to go with two back stays.

      Regards,
      John Stevenson
      http://www.svsarah.com

      On Wed, Aug 3, 2011 at 3:13 PM, Paul Lefebvre wrote:

      Quote:
      I still have my rigging to replace. Any disadvantages to twin back stays. I
      assume you would have more weight and windage aloft, but I don’t know if
      that would be significant on our boats.

      Paul

      Quote:

      Post generated from Pearson424 Forum using Mail2Forum

    • #77461
      Anonymous

      Here are a few photos illustrating the pieces I fabricated for the
      double-backstay masthead connection. Not sure it was an ideal solution,
      but it’s holding.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us



      Original Message


      Post generated from Pearson424 Forum using Mail2Forum

    • #77462
      Hull152_Patrick
      Spectator

      This is a great question to put to the riggers on Spartalk
      http://www.briontoss.com/spartalk/

      -p

      —
      s/v Deep Playa | Pearson 424 Hull #152 | http://www.DeepPlaya.com | @DeepPlaya

      2011/8/3 Silverheels

      Quote:
      Here are a few photos illustrating the pieces I fabricated for the
      double-backstay masthead connection. Not sure it was an ideal solution,
      but it’s holding.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us



      Original Message


      Post generated from Pearson424 Forum using Mail2Forum

      Owners no more...
      Thanks Dawn and Patrick!

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