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 Post subject: Material for DIY Boom
PostPosted: Fri Mar 22, 2019 7:06 am 
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Joined: Fri Mar 22, 2019 6:58 am
Posts: 2
Hi all,

I have a Hobie Revo 13 - I have added stays (front and both sides) to my sail (and also built a sail toper so I can roto furl it even with the stays - thanks fusioneng !) as per suggestions here.

Now I want to add a boom to avoid taco sail downwind - I know there is a boom/batten method whereby you add a small rod into the sail bottom pocket. However, close to me I cannot easily source a small rod (say fibreglass) of the right length that will fit there.

However, there is a hardware store close to me that sells a wide variety of alumnium tubing and so I think building a boom may work as well.

Is aluminium tubing a good material for boom (I assume so as the mast is made of this ?) ? I am looking at say, 2 cm outer diameter tubing with 1.6m thickness. Is that ok size for a boom for a sail of this size ?

Thanks in advance !


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PostPosted: Fri Mar 22, 2019 8:50 am 
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Joined: Tue May 27, 2003 12:44 pm
Posts: 12849
Location: Oceanside, California
Here is a thread about kayak sail booms.

https://www.hobie.com/forums/viewtopic.php?f=32&t=54212&p=275747&hilit=Kayak+Sail+Boom+batten#p275747

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PostPosted: Sat Mar 23, 2019 2:23 am 
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Joined: Tue Feb 19, 2019 3:28 am
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I used 16mm alloy tube.

https://www.hobie.com/au/en/forums/view ... 02#p308659


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PostPosted: Sat Mar 23, 2019 9:36 pm 
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Joined: Fri Mar 22, 2019 6:58 am
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Hello yakker

Where did you get the gooseneck from ? did you make that yourself ?

The angle fits so I am curious where you got it from ?


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PostPosted: Sun Mar 24, 2019 4:44 pm 
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Joined: Tue Feb 19, 2019 3:28 am
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I made it with polymorph. Search google till you find the polymorph pellets. It's a thermoplastic that you can easily mold with hot water and your hands. If you get some hit me up for some tips for working with it.


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PostPosted: Wed Mar 27, 2019 10:31 pm 
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Joined: Wed Aug 20, 2014 9:18 pm
Posts: 8
I made this half wishbone boom from PVC pipe. The boom was filled with sand, heated with a heat gun, and formed. The mast gooseneck is a PVC "T" with a straight PVC insert. Both have a slit for the sail to exit on the side not seen here. The gooseneck is held in position by 1/8" braided line tied to its top and bottom, secured to the shroud ring above, and the mast base below. All joints are friction fit. No adhesive was used.The small jib is a commercial genoa from kayaksailor.com. https://www.dropbox.com/s/88g8a1qg8y08b ... t.jpg?dl=0


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