rdubuque
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« on: November 25, 2007, 06:50:11 pm » |
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Does anyone have the rig used for stepping the mast. Specifically I am referring to the lines that run from the boom to the cabin top. Are they lines or wire and where do they attach?
I never have had this and have jury rigged lines from the boom to the genoa blocks. This makes keeping the boom vertical a challenging job and eliminates the possibility of doing it singlehanded.
I also find it hard to keep the mast in line forward and have to have someone guide it down. For me it ends up being at least a 2 person job and better with 3.
Any advice/experience would be helpful, pictures even better.
Bob
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sfisher
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« Reply #1 on: November 26, 2007, 05:12:00 am » |
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Sorry, Bob, I was at the boat today for a few minutes and recall staring at the boom thinking there was something I should check.
I hope to be back there on Tuesday or Wednesday and will see if I have the fittings on the boom.
The Previous owner and I raised the mast three times during the summer with only the mainsheet and had no problem with mast alignment. The mainsheet is extra long, allowing it to be used with the boom vertical. Biggest challenge is keeping the shrouds clear of obstacles while raising the mast.
I do recall seeing something in these pages that showed the alignment of the boom lines. Perhaps is the Parker Dawson advertising. The lines can be anything you want, requiring only moderate strength. I may also have seen indications of a bridle for both the boom and mast.
I won't be doing anything much with the boat until my knee gets stronger. Surgery went well and Physical Therapy is intense, but paying off in getting mobility back quickly.
The word is that if you don't get flexibility back in the first 6 weeks, scar tissue will make it impossible to get more later.
Steve in San Jose Hull 270
Steve in San Jose Dawson 26, "Banana Split" Hull 270
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Steve in San Jose Dawson 26, "Banana Split" Hull 270
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sfisher
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« Reply #2 on: November 29, 2007, 04:51:06 pm » |
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Bob, Sorry, did not get to the boat th is week.
Steve in San Jose Dawson 26, "Banana Split" Hull 270
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Steve in San Jose Dawson 26, "Banana Split" Hull 270
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rdubuque
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« Reply #3 on: May 06, 2008, 01:49:29 am » |
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Just thought I would put it out there again.
They are building a new bridge over the Sturgeon Bay Canal so I will unable to go through for over a month unless I can lower the mast easily.
I am mainly curious as to where the attachment points (on deck and on the mast or boom) are for the bridle that I have read about.
Thanks,
Bob
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sfisher
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« Reply #4 on: May 06, 2008, 05:00:55 am » |
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Bob, There is nothing on my boat that helps answer the question, but I think that I have found two hints in the Manual and Sales info. In the Midship 25 Manual, in the Mast Raising section item 3 ,"Hook the TWO LIFTING BRIDLES," into the STRAP EYES at the center of the boom? If ,"Center," means the center point in terms of the boom length, I think we have a location to fasten the bridles.
Actually note 4 refers to the, "Lifting Bridle," being aft when the boom is upright, thus meaning that it is normally on the bottom of the boom.
Note 5 refers to Pad Eyes on the forward hand rails (Stanchions?)
Ultimately, if the forward stanchions are in line with the mast, you should be able to attach the deck end of the bridle to the stanchion base and the end at the boom would describe a consistant arc, remaining snug through the mast raising.
In addition, the Parker Dawson literature mentions wire being used. There are modern lines that are plenty strong if you don't want to deal with wire rope.
Give that some thought.......
Steve in San Jose Dawson 26, "Banana Split" Hull 270
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Steve in San Jose Dawson 26, "Banana Split" Hull 270
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herby
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« Reply #5 on: May 06, 2008, 07:23:20 pm » |
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Heres The refered to "pad eyes" which are thru bolted, I really don't see the purpose of the teak blocks. I too have a problem with the mast wanting to go to one side or the other and I almost lost it once. I do need to figure a way to single hand it. Download Attachment: DSCN0601.JPG983.03 KB Herb Owner of Hull # 237 In Astor Florida Sail fast live slow
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Herb Owner of Hull # 237 In Astor Florida Sail fast live slow
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rdubuque
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« Reply #6 on: May 07, 2008, 02:29:32 am » |
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Herby,
Your boat is in fantastic condition. I let my teak go gray and wish I hadn't.
Your picture is very helpful. So the bridle goes from mid boom to those that small fitting on the deck. Seems a bit wimpy, although I guess it is just holding the boom upright.
I am going to experimnent when raising the mast this weekend.
Bob
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sfisher
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« Reply #7 on: May 11, 2008, 02:59:45 pm » |
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Got to the boat and see that I have the mast raining fittings like Herby's. Keep in mind that the geometry makes sense with that location. If the deck end is close to the same level and position as the mast base, then the lines should describe a nice arc then lifting the mast, and stay tight side to side.
I think I'll build a set myself.
Steve in San Jose Dawson 26, "Banana Split" Hull 270
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Steve in San Jose Dawson 26, "Banana Split" Hull 270
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sfisher
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« Reply #8 on: June 04, 2008, 04:38:50 pm » |
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I finally got my boom out of the cabin and looked for the," Bridle," eye strap. It is missing, but the two holes are about 50% of the way up the boom.
One of the holes is messed up a little, the other would accept a 10-24 screw. I think I'll try to rivet a strap in place.
Then to make the bridle with two straps,each with a fitting on each end. Good project!
Steve in San Jose Dawson 26, "Banana Split" Hull 270
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Steve in San Jose Dawson 26, "Banana Split" Hull 270
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sfisher
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« Reply #9 on: August 16, 2008, 07:20:04 pm » |
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It WORKS ! I simply used two adjustable straps from Home Depot to run from the two blocks mentioned, to the eye strap on the boom.
Lifted and returned the boom three times with no problem with the boom trying to move to the side.
REALLY SIMPLE, don't hesitate to try it !
Steve in San Jose Dawson 26, "Banana Split" Hull 270
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Steve in San Jose Dawson 26, "Banana Split" Hull 270
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Lil Dino
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« Reply #10 on: August 19, 2008, 05:20:40 pm » |
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Steve, Do you have a picture of your set up for raising the mast? It would be helpful to see how it is rigged. Thanks, Alan
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sfisher
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« Reply #11 on: August 21, 2008, 04:01:44 am » |
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No Photos, we were busy raising the mast. Really folks, now that I have done it, I wonder why I made such a big deal of it.
With the mast down, Base plate hinge set up, the boom can be put in its track and tied in place.
Then, in order to get the boom centered on the mast, all you need to do is run two lines from the eye straps on the cabin top to the eye strap half way up the bottom of the boom.
I had two straps on hand, but they were too short, but I found two straps at ACE Hardware for 5 bucks. Hook one end into the cabin top eye strap and adjust the other end to that it hooks into the boom eye strap when the boom is on the same plane with the mast, but at 90 degrees. . Do it again for the other side.
Once done, it is hands off !
I've seen much more complex systems that don't do more than this. PD did a good thing.
Steve in San Jose Dawson 26, "Banana Split" Hull 270
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Steve in San Jose Dawson 26, "Banana Split" Hull 270
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rdubuque
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« Reply #12 on: August 22, 2008, 04:50:55 pm » |
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I attach my side to side lines/straps to the midship stantion bases with perfect results. No eyes on my boat.
Bob
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sfisher
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« Reply #13 on: August 23, 2008, 09:54:10 pm » |
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In theory, the deck attach point should be on the same plane as the mast base, so that they all swing in the same arc. Some folks have gone to great lengths to create such a point between the shrouds, with lots of work.
Bob, you have proven that it is not really very critical.
Steve in San Jose Dawson 26, "Banana Split" Hull 270
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Steve in San Jose Dawson 26, "Banana Split" Hull 270
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Tom Duiker
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« Reply #14 on: September 10, 2008, 11:11:05 pm » |
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I tryed the bridle hookup worked slicker than %^%$ Really appreciate all the advise Thanks Guys. Tom
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Rachael Lee 233
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