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New block fixing at mast base

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JohnA View Drop Down
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    Posted: 02 March 2012 at 12:03
I am attaching a photo of the base of my mast and I want to attach a new block next to the existing blocks. There is a fixing which needs to go inside the hole on the right, to which the block is attached. You can see a similar fixing attached to the existing right hand block. Can anybody please advise me as to what this fixing is called, where I can get one and can it be fitted in the hole without stepping the mast? Thanks.






Edited by JohnA - 02 March 2012 at 12:04
Hanse 320 #464 'Discovery'
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Peter-Blake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peter-Blake Quote  Post ReplyReply Direct Link To This Post Posted: 02 March 2012 at 12:09
I remember these are called Clevis pins (Browse this forum for them)

for adding a clevis pin you have to step of the mast and you have to dismount the mastbase. these pins where mounted before the mastbase came in place. (I am talking about a spacraft mastbase)

You will find the pins here if you have a sparcraft mast:

http://www.sparcraft.com/uk/products/hardware/fichiers/maststepblocks.pdf

This is how my Mastbase looks like:




Edited by Peter-Blake - 02 March 2012 at 12:17
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JohnA Quote  Post ReplyReply Direct Link To This Post Posted: 02 March 2012 at 12:49
Thanks very much for your speedy reply, Peter. You would have thought that Hanse would have filled all the holes with clevis pins prior to or during commissioning wouldn't you?

 I'm certainly not prepared to step the mast for this small item and will have to find another way of fitting a block, maybe by using a small shackle which may slide in the slot at the bottom of the mast. Unless you clever guys out there can suggest another way?

Thanks again, Peter.

Regards,

John
Hanse 320 #464 'Discovery'
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Peter-Blake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peter-Blake Quote  Post ReplyReply Direct Link To This Post Posted: 02 March 2012 at 13:28
If the new blocks does not get hogh loads you may check if you can fix it to the existing hole with a small rope. What is the block to be used for?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JohnA Quote  Post ReplyReply Direct Link To This Post Posted: 02 March 2012 at 14:11
To be honest Peter, I have currently fitted a small block in that position using four small nylon cable ties, as a temporary solution. However this is not an elegant solution and I need to improve on it. The block will be taking light loads only from a sail stacking system which, during the winter period, I have had fitted to my main sail by a sail maker. The objective is for the main sail to be completely dropped and secured at the end of a sail, without the necessity for a crew mwmber to go on deck to pull down the last part of the main sail which tends to stay up the mast. We sail short handed most of the time and I don't like crew members having to step up to the mast to stack the main sail, especially if the sea state is not good.

 As the main sail has just been re-fitted and 'Discovery' is still on the hard, I have not had an oportuinity to test the device out yet. However I intend to report on it on the forum once we have chance to see how well (or otherwise) it works. Hopefully it will be a good safety device.

Regards,

John
Hanse 320 #464 'Discovery'
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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 02 March 2012 at 14:28
You could fit a twin sheathed block to one of the pins
I have added blocks for cunningham etc & these come off the kicker loop
 
I have considered the idea of a line to pull the sail down, but if the main came down & someone did not tighten the "downhaul" quick enough there would be a loop of line flapping around looking for something to hook onto. I considered running it through loops at each sail slide to retain it more but the resulting loops would be harder to " unloop" if they did get stuck. Obvious choices would be the deckspreader light or the bolts on the spreaders, or the small gaps between spreader root & mast. I am sure a thin line would find something to hook onto
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JohnA Quote  Post ReplyReply Direct Link To This Post Posted: 02 March 2012 at 14:45
Samuel,

 The system I have recently had fitted is shown on page 26 of the Crusader Sails brochure which can be found at:

http://www.crusadersails.com/brochure.htm

 The line fits on the luff and leech of the sail in order to lower it in a more controlled manner (I hope). I'm not sure how we will deal with the refing lines as the sail is dropped, hopefully we will be able to haul them in from the cockpit clutches as the sail is dropped. Experience will, no doubt prevail.

 If the system works well, I will video the procedure and publish the link on MyHanse.

 Thanks for your advice, though.

Regards,

John


Edited by JohnA - 02 March 2012 at 14:50
Hanse 320 #464 'Discovery'
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341 Agathe View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 341 Agathe Quote  Post ReplyReply Direct Link To This Post Posted: 03 March 2012 at 11:04
There is room for 3 blocks at the mast foot closest to the cockpit, see photo.
I needed a bolk to cunningham and spinnaker.
Agathe 341 2003, white hull, tiller steering, deep draft keel, long rudder
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Post Options Post Options   Thanks (0) Thanks(0)   Quote skipper Quote  Post ReplyReply Direct Link To This Post Posted: 04 March 2012 at 12:29
Have you had time to search on Myhanse, mast base blocks has been discussed a lot over the years?
Could this thread be a help?
 
Cheers,
Skipper
Former owner of Hanse 342 2005 (Sparcraft mast, white hull, wheel steering, deep draft keel, short rudder)
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JohnA View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JohnA Quote  Post ReplyReply Direct Link To This Post Posted: 04 March 2012 at 13:24
Thanks Skipper,

 I had not seen this post before and found it very useful. It never ceases to surprise me as to the detail that forum members are prepared to go in order to help other members with views, technical detail and knowledge. The forum is a great family and must be the best of it's kind.

Long may it continue!

Regards,

John
Hanse 320 #464 'Discovery'
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