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HPL boom parts
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cgoudie1



Joined: 10 Apr 2006
Posts: 1278
Location: Killer Sturgeon Cove

PostPosted: Wed Apr 09, 2014 6:20 pm    Post subject: Reply with quote

In my case it's a wave freeride boom. Actually I think it's called
a Carbon Hybrid.

-Craig

kevinkan wrote:
the ones i have in stock have about an 18mm pin spacing. i will see if i can source the other clips. are these the smaller ones for wave/freeride booms or the big ones for the formula booms?
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dennis_c



Joined: 05 May 1998
Posts: 652
Location: Rio

PostPosted: Wed Apr 09, 2014 7:39 pm    Post subject: Reply with quote

Mine are wave booms. I don't have them right here; I will measure them tomorrow. A desperate (frugal?) sailor could fit the older collars on newer booms (I'm pretty sure) or vice versa. It would require drilling some new holes on the other side of the extension.

Last edited by dennis_c on Thu Apr 10, 2014 3:38 pm; edited 2 times in total
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kevinkan



Joined: 07 Jun 2001
Posts: 1164
Location: San Francisco

PostPosted: Thu Apr 10, 2014 3:23 pm    Post subject: Reply with quote

dlfrosch wrote:
I have the exact same need as Dennis for my HPL boom. The pins are 15mm apart. If the older style collars also work, great. Thanks!


so this 15mm measurement is the distance b/w the pins or the distance center to center?

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Kevin Kan
Sunset Sailboards, San Francisco CA
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dennis_c



Joined: 05 May 1998
Posts: 652
Location: Rio

PostPosted: Thu Apr 10, 2014 3:37 pm    Post subject: Reply with quote

Update: I measured the hinged collars on my old aluminum wave boom, and the pin spacing is 18 mm and pin thickness is 8mm (I think the ones on my Hybrid Carbon Slalom are the same.) The spacing on the newer collars of my carbon wave boom is 20 mm and the pins are 6 mm thick. I tried the old collars on the newer boom and they do fit. This would, of course, require drilling 2 new holes in the front tubing, also at least 2 new holes in the extension, both sides. I also tried fitting the old aluminum extension into the newer carbon front tubes, and that worked as well. (The aluminum extensions are quite light, just not very stiff, so this might work okay where not much extension is required.)
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dlfrosch



Joined: 11 Jul 2010
Posts: 9
Location: Redwood City

PostPosted: Fri Apr 11, 2014 1:21 am    Post subject: Reply with quote

The 15mm is the space btw the pins. In my case for a carbon wave boom. Thx!
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dlfrosch



Joined: 11 Jul 2010
Posts: 9
Location: Redwood City

PostPosted: Fri Apr 11, 2014 1:26 am    Post subject: Reply with quote

Right now I have collars from a North boom on them. Pin spacing is the same but they don't close quite as snugly as the original, leaving me a little worried they might pop open on the water. Haven't actually taken them out yet and will be a higher wind day when I do, increasing the concern. The originals both cracked after three seasons, one completely. Thanks again for looking into this!
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kevinkan



Joined: 07 Jun 2001
Posts: 1164
Location: San Francisco

PostPosted: Fri Apr 11, 2014 3:52 pm    Post subject: Reply with quote

there are some other clips that I am ordering that have ~.75" center to center pin spacing which is ~2cm... so probably works with booms that have 2cm adjustment increments. will report back when i see them in person.
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Kevin Kan
Sunset Sailboards, San Francisco CA
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dennis_c



Joined: 05 May 1998
Posts: 652
Location: Rio

PostPosted: Fri Apr 11, 2014 4:57 pm    Post subject: Reply with quote

Thanks for your effort, Kevin.
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kevinkan



Joined: 07 Jun 2001
Posts: 1164
Location: San Francisco

PostPosted: Tue Jun 17, 2014 4:12 pm    Post subject: Reply with quote

dennis_c wrote:
I could use a pair of the newer collars.


I have a pair of these that fit booms w/ 2cm outhaul spacing

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Kevin Kan
Sunset Sailboards, San Francisco CA
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dennis_c



Joined: 05 May 1998
Posts: 652
Location: Rio

PostPosted: Tue Jun 17, 2014 7:09 pm    Post subject: Reply with quote

Kevin, I sent you an email.
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