Installing External Chainplates | Sailing Wisdom [S6 Ep10]

[@dwightqi]

Great job Herb. I bent mine by heating to red hot in charcoal bbq fire then clamped short end to a heavy piece if steel. Thel pulled the long end to the proper angle. Heat prevents possible breakage. I really like your creativity.

[@RiggingDoctor]

They hadn’t been work hardened since they were cast so I thought to try it cold first. Heating was by backup plan!

[@bobcornwell403]

Rise over run. I used that exclusively when building my ten foot scow. All my beveled joints were calculated thst way as well as the slope of the yard.

[@knolltop314]

Congrats!

[@jt36048]

External chain plates, Herb, what a wonderful idea..! My wife and I will attempt to refit a 1977 Macgregor Venture 25. Chain plates are through the deck, therefore constant rainwater drip inside. I thought of putting the chain plates on the outside but wasn't sure, and you gave us the inspiration..! Thanks a lot..!

[@RiggingDoctor]

😎 glad I could help with finding the solution!

[@MarkParshall-mg2fv]

Greetings. The cleaning "music video" was a real hoot! Had the illusion of tush synchronicity 🍑

[@RiggingDoctor]

🤗

[@stevenplancich6449]

Good Job converting your “Old Scow” into a Beauty😜

[@RiggingDoctor]

Thank you!

[@liamstone3437]

Galvanic corrosion can be mitigated. Select stainless steel alloys with similar electrode potentials to bronze, such as 316L or 317L are less reactive. Glad you got a countersink to give your dental tools a break.

[@RiggingDoctor]

The only fasteners I was able to get in time were 18-8 so Tef-gel to the rescue!

[@spinkey4842]

just curious why you decides to not counter sink the penetrations on both sides of the hull and the plates?

[@Tb0n3]

I'm surprised you're not bedding in your chain plates with butyl tape. Really seems like the best way to do it. Give a nice chamfer with the countersink and you have a wedge of rubber sealing against water.

[@RiggingDoctor]

I was planning on it, but it would have been my first time using it and I wasn’t sure if I wanted to experiment on the chainplate bolts as opposed to going with what I know to work. So I fell back to plain polyurethane sealant.

[@MatthewWright-y9t]

Nice bend technique…. Curious what kinda torque those bolts need? Those cheap torque wrenches are actually pretty good. The difference in accuracy between expensive torque wrench generally negligible.

[@RiggingDoctor]

93 foot pounds was the desired torque

[@jonathanblanchard6480]

Where did you get silicon bronze plate?

[@RiggingDoctor]

One of my patrons got it through his work from a foundry in Pennsylvania. They ended up costing about $60 per plate!

[@seanrhone5306]

No backing plates on the chainplates?

[@RiggingDoctor]

The backing plate is molded into the hull. It’s a big piece of

[@danweeks9127]

What paint do you use on the deck?

[@RiggingDoctor]

EZ Poxy from Pettit like this one: amzn.to/3AWSCke I used plain “white” for the color.

[@danweeks9127]

@@RiggingDoctor thanks… I’m intrigued by the idea of just painting every year. How much prep do you do each time? Do you sand? Etc

[@markchodroff250]

Looks great and fantastic job , but painting the deck every years doesn’t that cause a real build up and a problem for cracks, chips and some disbanding of the paint ??

[@californiakayaker]

Basic problems, basic answers. I have a friend who made his out of Titanium. When he got to Tonga (he was visiting San Diego and had them made m, wouldn't you know the angles of the holes (something like that ) were a little off and he could not find anyone who could drill or work with Titanium, Bronze should be easier to work with than stainless and definitely easier than Titanium . Some of the guys used amazing riggers and owners of the largest rigging companies in the world, and they made so awesome videos. They are all in my sailing rigging ect playlist and this one will be in there also. That said, the stainless bolts will corrode or fail inside where you can't see the problem. It takes quite a while but I think replacement of the bolts should be a , say, 5 year event ? What do you think ?

[@DowneastThunderCreations]

👍👍👍

[@RiggingDoctor]

😁

[@melinda5777]

Great job!❤❤

[@waynebradish6344]

You will find as you use them, new harbor freight tools are much better than the old crap. Get their high-end stuff and it's comparable to Craftsman.

[@markmahan6768]

❤

[@RiggingDoctor]

Hi Mark!

[@markmahan6768]

@@RiggingDoctor I've hard time getting my comments to work, but I'm always watching!

[@SpiralDiving]

Let me get this straight, you went to bronze to avoid corrosion in stainless but then used stainless bolts that may suffer crevice and electrolytic corrosion? Why not silicon bronze bolts?

[@RiggingDoctor]

Stainless steel bolts cost $120 but the bronze bolts would have cost $1400. I will simply have to replace them periodically until I can save up and buy bronze bolts

[@clivestainlesssteelwomble7665]

Oops no sound ... I will try again later . Gremlins in the Tube?

[@rmcnabb]

Bronze bolts maybe?

[@RiggingDoctor]

They were going to cost $1500 so I went with SS for $260

[@JonMadsen70]

:)