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Fri, April 19 2024, 07:27 [ Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1, 2, 3, 4, 5, 6, 7, [8], 9 ]

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Date Posted: - Friday - 08/ 4/06 - 9:16am
Author: Capt'n Mike - TM36K Gypsy Mariner
Subject: Dolphin Striker attachment
In reply to: GeneVT TM36C SANDPIPER 's message, "Seeking specific TM 36 info" on - Thursday - 08/ 3/06 - 9:59am

Gene,
Many have attached the snubber to the extra hole on the bow fitting (bobstay chain plate). Gypsy Mariner's extra hole is a little elongated, which suggest that the bow fitting can take the load. I thought you may have meant that you were snubbing from the bow fitting, but I looked at the pictures of Sandpiper posted on this site and it appears that your boat is, in fact, snubbing from the dolphin stiker.
My Tayana Mariner only has two thru bolts attaching a stainless socket to the stem. These bolts are not glassed into the hull. I replaced these bolts before, but I don't recall if the originals even had a backing plate. When Gypsy Mariner's bobstay came to rest in an oak tree after Hurricane Katrina's storm surge went down, excess weight was placed on the bobstay and the bobstay failed only at the point where the dolphin stiker attaches to the hull. This suggests to me that it should not be used as a snubber attachment point.
I think the base attachment of the dolphin striker was designed to take a compression load and some side-loading but not a substantial force pulling outward. In my opinion it would be like snubbing to a stantion. There is substantial strength in the area where your snubber is attaching, but it comes from the bobtay and the compression of the rigging, not the attachment point for the dolphin striker. The danger of snubbing where the dolphin striker and bobstay meet are that you are placing a great amount of unsupported side-loading here and if you have a failure, the entire rig is placed at risk. I just snub Gypsy Mariner with a bridle thru the bow hawse pipes and avoid the rigging attachment points.
As far as chain for the windlass goes, I do not have the model you have. However, I do have a Sea Tiger 555 and the last time I needed to figure out a size that works, I did trial and error with both borrowed chain and some small sample sizes. It seems like the 555 gypsys can accept more than one chain type and size (between 5/16"" and 3/8") - you just have to experiment.

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Replies:

[> [> Dolphin Striker (blush) -- GeneVT TM 36C Sandpiper, - Saturday - 08/ 5/06 - 9:13am

Mike, thanks for your responce. AND, Thank you for pointing out that I did NOT mean the 'Dolphin Striker'. I AM refering to the "bobstay chainplate". Mine also has an extra hole. And, it (bobstay chainplate) is in fact the place the PO attached his snubber and mooring lines. The photo on this site you mentioned shows us with a bridle. It is confusing and does appear it might attach to the 'dolphin striker'. It does not. I agree, attaching to the 'dolphin striker' would put too much stress on the rigging.

We are heading south again next month. I am going thru old log sheets and notes tring to make improvements before we leave. The 'bobstay chainplate' attachment point was one of the items I wanted to check out. I wonder how it (bobstay chainplate' is secured to the hull.....?

And, I am considering an all chain bridle for high winds and weather. We will be on the waterway during the hurricane season and I am concerned about chaffing. The all chain bridle would eliminate that problem.

Thanks for your thoughts. I shall continue my search for info on the windlass. Perhaps othters here may be able to help.

best wishes,
gs


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[> [> [> Gene - Check out this link -- Capt'n Mike - TM36 Gypsy Mariner, - Saturday - 08/ 5/06 - 1:26pm

Gene,

Check out this link: http://www.svsereia.com/photos/2005/November/ph_bow.htm

This is a Mariner 36 built in Taiwan in 1979, so it must be a Tayana Mariner. This shows the bobstay chain plate removal.
Mike


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[> [> [> [> Thanks Mike. I am encouraged... -- GeneVT TM 36C Sandpiper, - Saturday - 08/ 5/06 - 9:33pm


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