IOMICA Forum

In a realistic installation in an IOM, each of the sheets shown in drawing 2 and drawing 3 need to be tensioned please explain to me the reason for system 2 and 3 to ahve a tensioner like an elastic? [...] from what I think I know this system does not need an elastic to tension the ends. [...] if w...

Greg Vasileff wrote:Graham's email is sailsetc@compuserve.com I believe

Hi Greg

Make that "technical" at "sailsetc.com" (replace the "at" with "@").

... in a plain-vanilla drum-winch installation that you can see at any sailing venue, there are actually two separate physical lengths of line, each connected the drum on one end, and to each other at a ring or other fitting where the sheets attach to the "circuit." The line that has the elastic fu...

My interpretation of the above passage is completely different. The "either on a beat to windward" part makes it clear that it never applies at the windward mark Hi Marko OK, got it! I'm glad someone is doing a better job of reading the rule than I am! :oops: (Muttering that I didn't think they'd m...

The ISAF-RSD has published interpretation 2004-IOM-3 on their Web site. In summary: Q1. Is the bow bumper of a boat which meets the required 10 mm only at deck level and thinning towards the water line in accordance with IOM Class Rules? A. Yes (please see the full text for detail). Q2. Are the U-sh...

Chairman wrote:... this "work around" looks fine ...

I think I've got this wrong. I've re-read the rule: "... a sheet control line attached to the sheet control unit ...", but in Soeren's diagram, the elastic nowhere attaches to the sheet control unit. Oops.

Here there are only one elastic attached to both main and jb sheet, and therefore only one control line. Hi Soeren Yes, this "work around" looks fine, IMHUO. It is a pity that such a "work around" seems necessary, and I wonder what the intention was originally to restrict the rigging to one control...

http://www.pworld.net.ph/~electro/rc/differentwinchsetup.jpg Drawing 2 is the idea we discussed about separate sheets being attached in different points of the sail arm Drawing 3 is the double arm system which is typically used by Soling One meter boats. Hi Arvin Nice drawing. (A technical tip: lin...

Let's not make this more complicated than necessary. Hi Ralph Indeed. But equally, let's not simplify this so much that we end up with something that is not permitted. Simplifying it to just the number of servos involved disregards the rule dealing with a sheet control line: C.7.7 RUNNING RIGGING (...

As far as I can tell from the class rules, repairing any part of the boat is permitted. In the case of a sail, if a repair introduces some reinforcement, it seems to me that this is (explicitly) permitted, as Soeren says. I suppose that a measurer would expect the repair and consequent reinforcement...

RRS 18 now kicks in if, while on opposite tacks, you both must tack to round the mark. Hang on! This seems to say that, if we have a "simple" port-starboard situation *within* the zone, where starboard has under-stood the layline, and port is sailing to reach the (starboard) layline, port can hail ...

We seem to have lost all of the old E4.7 about moving ballast and replacing radio gear with similar items... I think this is an error... Argh! My mistake. No error at all. Old E4.7 has been deleted from the 2005-2008 RRS. RRS 51 is reinstated. The intention is that the class rules shall specify wha...

ISAF have pre-released the 2005 RRS. http://www.sailing.org/Article_content.asp?ArticleID=7490 As far as I can see, no really major changes, just tidying up and clarifying a bunch of details. But there are *some* changes to the game. When two boats pass head to wind simultaneously (RRS 13), the boat...

i would like to ask if fitting a same ball race swivel on the head of the jib(part that attaches to the mast) is class legal. Hi Ed Time to get to know your friendly IOM class rule book... (smile). A search in the PDF file yields: F.2.4 CONSTRUCTION (c) Ball and/or roller bearings may be used for: ...

I understand that Submission 144-03, below, was accepted at the ISAF November 2003 conference, for inclusion in the RS 2005-2008. I believe it is the same as the current RSD text, which remains "recommended" until the RRS is formally updated for 2005. PROPOSAL: 1. Amend E6(b) as follows: (b) Rule G1...

The Executive, in consultation with the World Council, will shortly publish official advice on the class rules and new ideas, as follows: If you are a commercial manufacturer supplying equipment to the class, treat new ideas as if they are probably illegal. Convince yourself that it is not so before...

I have decided to wait for the decision by the Technical Committee, which by the way I was not aware had been asked for until I suggested that it should be. (It would be nice to be informed of this action and probably appropriate if you are the one involved!) Hi Jeff The IOMICA Technical Sub-Commit...

The RSD-IOMICA committee has issued "Interpretation IOM 2004-2", available for download from the ISAF-RSD Web site. In essence, it says: A boom swivel which is a piece of cord knotted on the boom at one end and with a hook attached at the other is class-legal. The SAILSetc 120d headsail swivel with ...

The Executive, in consultation with the World Council, has developed an IOMICA policy on requests for interpretation of class rules: IOMICA encourages discussion around the class rules IOMICA encourages NCA/NCS officers to answer questions about the class rules at national level wherever possible IO...

Adjusting the angle of your bulb is moving ballast Hi Greg Yup, I think the rules are quite clear on this. It is interesting that removing the IOM keel (for storage, perhaps, at the end of a day during a multi-day event) is also technically "moving ballast", and so there is a submission to change E...

From a legality point of view, I checked the rules and don't see anything there which precludes it Hi Zecc The class rules say at "C.4.3 CORRECTOR WEIGHT(S)", that "Corrector weight(s) [...] shall be fixed in/on the hull". The Equipment Rules of Sailing say at "B.10.1" that "Corrector weights shall...

It would seem to me that the issue of how fittings, materials and methods are currently deemed acceptable or not under the IOM rules is problematic. Hi Roy This isn't peculiar to the IOM class. Any class has the same problem. Maybe it just seems worse in the IOM class because we have a combination ...

In fact, I could use a paint with finely ground depleted Uranium mixed as pigment, on the bulb couldn't I? Hi Rey Just to pick up on another issue about the number of angels who can dance on a pin-head... IOM Interpretation 2003-4 has something interesting to say about additives to adhesives and gl...

If you apply paint to a fiberglass fabric, let it cure and then use the fabric on a hull laminate, would it not be "glass fibre reinforced plastic"? What I just described is a method of application of a permitted material, in this case paint, onto another permitted material, fiberglass fabric Hi Re...

I just have 2 questions. 1. Is it more costly [...]? 2. Will it make the boat go faster [...]? Hi Ed Key questions about the class rules are more fully outlined in the topic "What are the IOM Class Rules all about?" in this area of the forum. At the least, we must distinguish what the rules actuall...

I'd like to quote Marko's earlier comments. The rule specifies that metal as well as glass fibres are allowed. It does not specify how you are allowed to apply them together. Actually, Steve, I don't think that's quite true. I think the rule is very specific about the use of glass fibres - that is, ...

I followed the instructions regarding change of ownership on the Measurement Certificate that came with my second hand boat, to the letter Hi James Yup. And, as you say, no mention of SAE. When I asked about this a while back, my, ah, attention was drawn to the MYA year book, where it does say that...

In fairness to James, I made the same "error" a few years ago when I failed to include an SAE with a boat measurement form. Didn't hear anything for weeks, took me a while to establish the reason...

Interpretation 2004-IOM-1 INTERPRETATION ON THE INTERNATIONAL ONE METRE CLASS RULES Interpretation requested by the AMYA, U.S.A. as follows: Is it permitted to tension a jackstay/luffline of an IOM mast enough to hold a pre-bent mast straight? Relevant rules International One Metre Class Rules F.5....

Quick post of top finishers, I expect the MYA site will carry the official results shortly. 1 Graham Bantock, Italiko 2 Martin Roberts, Gadget 3 Trevor Binks, Isis 4 Peter Stollery, Tonic, modified ... 6 Michael Scharmer GER, Own design (wooden mast, wooden booms, sails home-made from florist's cell...