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Old 24-05-2021, 22:13   #751
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

As you can see, most folks with the platforms put them on primarily to mount the headstay farther forward, presumably to move the sails' center of effort farther forward. In your case, mounting the roller farther out I'd like to hear from an engineer about what kind of forces will be on the platform when the boat is pitching in a rough anchorage (that is if you are planning on the rode over the platform taking the strain.) My gut feeling is it is enough that the whole thing will need to be very stout, not just to withstand the up and down, but the side to side that can come from a boat that is trying to sail itself out of an anchorage on a windy day. But the exact figures, I don't know. If you decide to go that route I think I'd consider mounting the base of the strut close to the waterline and make the base so stout that it will double as a mount for the snubber. Having the snubber down low reduces the strain from pitching and reduces the need to overbuild the platform, since it won't be taking the load of the anchor rode at anchor, and it increases your scope a bit too by lowering the angle on the rode. My own feeling is that you may not find as much utility in the platform as you may imagine for anchoring, but it would be a nice platform to stand out on, and it will ensure you don't chip your new paint job on the bow when you pull the anchor up.
It is all looking great!
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Old 24-05-2021, 22:43   #752
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

Quote:
Originally Posted by Don C L View Post
As you can see, most folks with the platforms put them on primarily to mount the headstay farther forward, presumably to move the sails' center of effort farther forward. In your case, mounting the roller farther out I'd like to hear from an engineer about what kind of forces will be on the platform when the boat is pitching in a rough anchorage (that is if you are planning on the rode over the platform taking the strain.) My gut feeling is it is enough that the whole thing will need to be very stout, not just to withstand the up and down, but the side to side that can come from a boat that is trying to sail itself out of an anchorage on a windy day. But the exact figures, I don't know. If you decide to go that route I think I'd consider mounting the base of the strut close to the waterline and make the base so stout that it will double as a mount for the snubber. Having the snubber down low reduces the strain from pitching and reduces the need to overbuild the platform, since it won't be taking the load of the anchor rode at anchor, and it increases your scope a bit too by lowering the angle on the rode. My own feeling is that you may not find as much utility in the platform as you may imagine for anchoring, but it would be a nice platform to stand out on, and it will ensure you don't chip your new paint job on the bow when you pull the anchor up.
It is all looking great!
2 words. Anchor bridle.
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Old 25-05-2021, 04:20   #753
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

On my Shipman 28 the custom made bow platform serves as an attachment point for furling Code 0 sail and anchor holder for Kobra anchor. I offset the anchor shank to port side to fit it better and get the weight as far back as possible. May be useful for you.
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Old 25-05-2021, 04:40   #754
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

Quote:
Originally Posted by 406Columbia View Post
Well the boat looks great! Is that copper coat for bottom paint? If so we have a few gallons sitting in the garage waiting to use on our bottom too. Do you have a refit thread? We saw two Columbia 50's down in San Diego a couple months ago. Absolutely beautiful boats, worth the effort to refit.
I do not have a refit thread, but our job is about on par with yours. I just do not take the time to create one.

The paint is actually VC-17M, a brackish/freshwater paint used by many sailors/racers here in the Great Lakes, it is a hard paint, containing copper-you actually dump in a bag of copper into the paint before application. It is slick and fast. There are quite a number of C50's in SD, the owners all know eachother quite well. It's a small but somewhat tight group of owners.
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Old 26-05-2021, 20:54   #755
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

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Originally Posted by newhaul View Post
2 words. Anchor bridle.

This appears to be essential part of ground tackle.
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Old 26-05-2021, 21:00   #756
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

Quote:
Originally Posted by Don C L View Post
As you can see, most folks with the platforms put them on primarily to mount the headstay farther forward, presumably to move the sails' center of effort farther forward. In your case, mounting the roller farther out I'd like to hear from an engineer about what kind of forces will be on the platform when the boat is pitching in a rough anchorage (that is if you are planning on the rode over the platform taking the strain.) My gut feeling is it is enough that the whole thing will need to be very stout, not just to withstand the up and down, but the side to side that can come from a boat that is trying to sail itself out of an anchorage on a windy day. But the exact figures, I don't know. If you decide to go that route I think I'd consider mounting the base of the strut close to the waterline and make the base so stout that it will double as a mount for the snubber. Having the snubber down low reduces the strain from pitching and reduces the need to overbuild the platform, since it won't be taking the load of the anchor rode at anchor, and it increases your scope a bit too by lowering the angle on the rode. My own feeling is that you may not find as much utility in the platform as you may imagine for anchoring, but it would be a nice platform to stand out on, and it will ensure you don't chip your new paint job on the bow when you pull the anchor up.
It is all looking great!

I think your correct, must be strong enough to take lots of strain, unless maybe I use the bridle or snubber. I appreciate the honest input Don, always like to hear your thoughts and experiences.
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Old 26-05-2021, 21:10   #757
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

Quote:
Originally Posted by mait View Post
On my Shipman 28 the custom made bow platform serves as an attachment point for furling Code 0 sail and anchor holder for Kobra anchor. I offset the anchor shank to port side to fit it better and get the weight as far back as possible. May be useful for you.
Attachment 239167

Attachment 239168

I have to say that is the most amazingly beautiful anchor platform I have seen yet. I really like that, going to attempt to replicate it on my build. Thanks so much for the pics
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Old 26-05-2021, 21:16   #758
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

Quote:
Originally Posted by SV Siren View Post
I do not have a refit thread, but our job is about on par with yours. I just do not take the time to create one.

The paint is actually VC-17M, a brackish/freshwater paint used by many sailors/racers here in the Great Lakes, it is a hard paint, containing copper-you actually dump in a bag of copper into the paint before application. It is slick and fast. There are quite a number of C50's in SD, the owners all know eachother quite well. It's a small but somewhat tight group of owners.

That sounds similar to the coppercoat stuff we have for our boat. Seems like the old Columbia boats have a dedicated little following.
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Old 26-05-2021, 23:30   #759
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

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Originally Posted by 406Columbia View Post
I have to say that is the most amazingly beautiful anchor platform I have seen yet. I really like that, going to attempt to replicate it on my build. Thanks so much for the pics
I'm glad you found it useful. Please contact me if you need any details of the construction etc.
You've done amazing job restoring that good old boat!
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Old 29-05-2021, 13:18   #760
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

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I'm glad you found it useful. Please contact me if you need any details of the construction etc.
You've done amazing job restoring that good old boat!

Thanks so much and PM sent.
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Old 07-06-2021, 20:04   #761
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

Slowly coming along. Cut some additional steel of the push-pit and close to be ready to weld on the feet. Ended up needing to change out the support I had previously installed on the engine access step area. The little rod system pictured below wasn't able to support the weight, ended up putting in another Moonlight Marine (made here is Costa Mesa) hatch support. I have used around ten of these on the boat and am very pleased with them. Simple, robust and quality materials. A couple years ago I had an opportunity to go into their shop and meet the guys and watch some springs being manufactured.

Found a strike plate here in the garage that will work for the companionway door. I need something to protect the wood from the latch bolt since the lock we installed doesn't quite draw all the way in while closing. Just had to cut off about an 1/8'' on the ends.

Also got around to bending up some PVC tube to check fit for the anchor platform. I think I will reduce the width of the front of this by two or three inches. Will reduce the width working aft, but other wise I am working off the version MAIT provided pictures on this thread.

Laid up the first round of fairing compound on the chunk of mahogany that will support the forestay chain plate. Will end up dry fitting this soon and re drilling the holes, well over drilling them and filling with thickened epoxy then drilling to prevent water intrusion.

Included a profile shot because, well I love the shape of this boat. Also I pictured the transfer set punches from Harbor Freight, such a great deal and so many uses.
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Old 08-06-2021, 09:57   #762
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

She does have nice lines. Good choice for restoration.
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Old 12-06-2021, 00:51   #763
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

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She does have nice lines. Good choice for restoration.

Beautiful boat!
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Old 22-06-2021, 22:44   #764
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

Welding and bending a little. Was unable to locate pre bent little elbows to make the anchor platform look really nice so this is what I got. Not sure if I mentioned but got the strike plate installed. Got a new sink on the way for the galley as well, cant wait.
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Old 23-06-2021, 02:48   #765
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Re: Part 2 - Columbia 29 refit, in the Rocky Mountains

I wish my bow was so clean. I'm going to have to make an entirely new bow assembly too. I need some kind of bow roller, and smoother, less sharp, components to lead out my dock lines. This seems like the largest, most glaring omission on my 9.6. Oh well. I should learn to weld stainless anyhow.
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