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 on: September 27, 2020, 09:12:37 AM 
Started by Bob Gray - Last post by Bob Gray
Recently I was given an older well used runner sharpener. The platen (surface that the sanding belt runs over) was shot. The old one was steel and had fairly deep groves in it. Replacing the steel platen would have been a real pain so I went with what I used on the new Bob Rast style sander I built. Remembering from my teen years that the only thing that would scratch glass was a diamond, thatís what I went with. I bought a 1/4Ē thick piece of glass from a local glass shop for about $15 (cut to fit). To attach it I covered the bottom with fiberglass carpet tape.  My new one is in its third season and the surface is still like new. I strongly recommend this if you have to replace your platen, just try not dropping the machine.

 on: August 06, 2020, 02:20:00 PM 
Started by US 5432 - Last post by US 5432
He's not only fast, now he's in charge! Chris Berger, US 5166, is the new Western Region Commodore.

Chris will need help. Think of ways you can contribute as regatta season approaches. When was the last time you volunteered with registration, ordered trophies, scouted ice, rolled out the starting line or set up marks. These are things we can all do. It doesn't take much effort to make a big difference.

 on: May 24, 2020, 09:50:56 AM 
Started by T Thieler US 5224 - Last post by T Thieler US 5224
Hey Folks- There is another e-ballot headed to all DN class members, this one having to do with electing officers-

Make sure the ballot did not end up in your junk mail folder!

Itís important stuff! Take a few minutes, read up on the issue, and of course vote early and often!

Click and take a look-


 on: May 17, 2020, 04:45:40 PM 
Started by Pjazz - Last post by Paul Goodwin - US 46
I'm not sure where you are going wrong in your rigging.  My old school rigging used Nicro Press compression sleeves with thimbles, and joined together using a heavy duty shackle at the mast.  I have only failed DN rigging once, when a Nicro Press on the forestay pulled though the Nicro Press sleeve.  The forestay on a DN has so much load that I started using double sleeves and never had another problem.  Do make sure you using a large enough gage wire.

My new rigging uses marine swaged ends, and I've sailed with the same rigging for at least 20 years.    If you are using marine or aircraft swaged cable ends there should be provision for the fork or eye to have freedom of motion at the mast.  As Warren mentioned use toggles.  At the bottom end it doesn't really matter.  The forestay needs some form of length adjustment, but does not need a toggle at the bottom.  My side stays have a swaged fork at the bottom and attach directly to the tang on the plank - no length adjustment or toggle.  this is not for everyone, most people like something adjustable to fiddle with, but for me it just adds complication.

Paul Goodwin

 on: May 12, 2020, 08:18:10 AM 
Started by Deb Whitehorse - Last post by Deb Whitehorse
Runner Tracks for May 2020 has been published. See it here:
Runner Tracks May 2020

Junior DN & Ice Optimist World Championship Report & Results
2020 Sean R. Heavey Gold Cup Photo Gallery & Results
By Laws & Constitution Proposals by Warren Nethercote KC376
European Secretaries Meeting Report by Warren Nethercote KC3786
Baikal Report by Mike Bloom US321

 on: April 13, 2020, 06:59:47 AM 
Started by T Thieler US 5224 - Last post by T Thieler US 5224
Balloting closes April 15.  If you haven't yet read the post above and cast your votes!

 on: March 31, 2020, 07:42:44 AM 
Started by T Thieler US 5224 - Last post by T Thieler US 5224
As you may have heard four important proposals are on the ballot for the DN class- It is very important that every member of the DN class vote on it! And remind all the class members you know to do the same- Spread the word!

ALL BALLOTING IS BEING DONE ELECTRONICALLY VIA EMAIL. It only takes a few minutes (even if you are not tech-savvy) and doesnít cost a thing. So donít wait for a paper ballot to show up in out in the mailbox!

All paid up IDNIYRA members should have received an email on March 25 from the International DN Ice Yacht Racing Association (invitations@mail.electionbuddy.com) inviting you to click a few links and file your vote on this Spring 2020 Tech Specifications Ballot.

-Make sure you are a paid up DN Class member (If not, join and get paid up and VOTE!)
-Check your spam and / or junk mail folders and make sure it isnít rotting away in there
-If you still canít find it or have any other questions email DN Class Secretary Deb Whitehorse at debwhitehorse@gmail.com and she can get you sorted out.

Chad Atkins wrote a good article about these proposals in the September 2019 issue of RUNNER TRACKS- He works with composites for a living and has been building and sailing DNs for decades; he is very qualified to comment and his opinions carry a lot of weight. Click the link and go to page 20.

If you still arenít sure re-read the following explanations and opinions from Paul Goodwin- DN Class guru, builder, engineer, tinkerer and all around good guy:

My take on the 2020 Proposals Ė Paul Goodwin

The first two proposals are to change specs that were written when the class first made the transition from wood to composite masts. It was clear at the time that the composite mast would make the older mast technologies obsolete, at huge cost to class members. This was justified because we were breaking the older masts at an alarming rate. The idea behind the minimum weight and balance point specs was to reduce the incentive to constantly look for the latest, greatest, high-tech (and expensive) composite mast material.

1) Deletion of the minimum weight for the mast Ė

I think removing the minimum weight will not be good for the class. The intent of this spec is to discourage using exotic (and expensive) materials. High modulus carbon fiber comes to mind, but there are potentially more exotic and expensive fibers available. I believe eliminating the min weight will accelerate a technology war leading to lighter and more expensive masts. Sailors will have mast envy, with the perception that lighter is better, driving the cost of masts ever higher.
My Vote: NO

2) Deletion of the balance point on the mast Ė

The reason for the balance point was to make a builder put some of the ballast up higher in the mast, rather than building a super light mast with a big chunk of weight at the base. I think the spec is still valid. I donít want to make it easier to build super light, expensive masts. In the overall cost of building a pre-preg carbon mast in an autoclave, the time and cost of adding ballast is insignificant.
My vote: NO

3) Allow runners to be built of any material Ė

I think this proposal has no merit at all. I challenge everybody to think about how they would use this change to design a runner body that reduces the cost, and at the same time remains competitive against the super stiff lightweight carbon bodies that will be coming when there is no restriction on design and material. The DN is not the class for a rule that allows unlimited use of exotic materials.
My vote: NO

4) Amend the minimum thickness of insert plate to allow commercial material tolerance Ė

This one makes sense. The reduction in thickness allows use of commercially available steel, which can reduce the cost and is easier to find. The change is so small that it is insignificant for performance.
My vote: YES.

 on: March 30, 2020, 05:24:49 PM 
Started by Pjazz - Last post by wnethercote
If you are getting repeated failures near the swages or nicopress sleeves you may need a toggle on the end.

Don't most riggers have a junk barrel?  I've found really good stuff in the dumpster at my soft water club.  You just need to get over the embarrassment of dumpster diving - it wears off when the wire if free. 

 on: March 30, 2020, 05:20:32 PM 
Started by Pjazz - Last post by wnethercote
I have built a bunch based on Geoff Sobering's design, although now I use carbon fiber rather than plywood.  I used to use a fixed tiller.  It was either too short when starting or too long when sailing, and REALLY hurt when I dropped a runner into a crack.  A telescoping tiller is beneficial in more than one way!

 on: March 30, 2020, 08:52:23 AM 
Started by wnethercote - Last post by tasar
Post me in email given above reply. What package are you thinking and price ?

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