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IOMICA Events SC has agreed with Vela Club Campione del Garda about schedule and final dates for 2014 IOM European Championship, from September 27th to October 3rd.

The new Class Championship Rules   have been published.

Join IRSA  – IOM ICA Subcommittee has issued Interpretation 2013-IOM-1 on IOM Class Rules regarding chainplate position, asked by CAN NCA.

The WC 2013 website : http://www.iomwc2013.com/

Download pdf file of NoR_IOM_WC_2013.

 

Request for IOM Class Rules Interpretation from CAN NCA.

With the emergence of the new high prismatic narrow hulls with chines, the decks are becoming much narrower than traditional IOM designs.

With a narrow deck, the chainplate position moves inboard and the shroud base gets narrower. I have attached a pictures of a narrow IOM (see below) with rounded sides where the chainplate eye has been placed proud on the center of the topsides to widen the shroud base. See diagram F.

My question is does this contravene class rules?

D.2.3.c Fittings shall not project outboard of the hull shell or deck.

This question raises the issue of the location of the sheer and where the deck ends and the topsides of the hull begin. The chainplate eye can project above the deck, but cannot project outboard of the hull shell. So how do we interpret the class rule for the diagram examples B, C, D, E and F?

It also asks the question about the hull shell – is the class rule use of SHELL, referring to the plane of the hull in the area of the chainplate eye, or is it referring to max beam?

In case B, the sheer is a small radius curve and the chainplate eye extends outboard of the hull lines and max beam.

In case C, the sheer is a large radius, and the chainplate eye lies inside max beam. There may be some question as to where to locate the projection lines.

In case D, the hull bottom is round and the chine extends from a vertical tangential extension at max beam. The chainplate eye is outboard of the chine, but inside max beam.

In case E, the hull bottom is a flat section and the chine extends from a wide angle tangential extension at max beam. The chainplate eye is outboard of the chine, but inside max beam.

In case F, the hull is an oval with no discernible sheerline or chines where the chainplate eye is attached. This matches the picture of the IOM (below).

 

 

 

 

 

 

 

The Techincal Sub-Committee has prepared the 2013 IOM Class Rules, effective 1st. March 2013.

The Rig and Hull Measurement forms have  been updated.

See Class Rules page.

Certification Measurement Form

With the changes in the class rules to allow pigmentation of resins used in the moulding of hulls and the difficulty in examining the interior of many hulls, the declarations required on the Certification Measurement Form have been modified to require the builder of the hull to certify that the materials used in the construction of the boat are in compliance with the class rules.

The Certification Measurement Form remains the only form required to be sent to and retained by the NCA as the result of a successful certification control measurement. The method of storage is the NCA’s decision

Additional Rigs Form

Should the boat be certificated with less than the full complement of rigs then the Additional Rigs Form may be used to add additional rigs to a certificate.  Once the certificate has been up dated then it need not be retained.

Check Lists

The two Check List forms are for the measurers use in conducting a certification measurement.  They are not required to be sent to the NCA.   As such, these check lists should be thought of as a work sheet of checks to be observed by the official measurer in a measurement only and if the boat complies there would be no further use for them.  The check lists might be of some use to the owner of a boat which failed measurement as a record of what has to be corrected before a certificate is issued.

Measurer’s record

This is not part of the Certification Measurement Forms but is only given as a suggestion of a means of a measurer recording measurements he, or she has completed

 

Euro 2014 will take place in Italy (Campione del Garda) at dates to be confirmed end of  September, early october. Precise dates will be given soon.
Thanks to Spain and France who have also proposed very good applications.

IOM ICA has become aware of some email notes from one of our NCA Technical groups. In those notes there are a number of inconsistent statements and some very wrong assumptions and advice.

For the purpose of this letter we will restrict our comments and direction to the ones  concerning the use of single panel sails on IOM Class boats.

That note continues to reference a 2003 based response to a Request for Interpretation regarding that style of sail. Although that response deemed those sails to be illegal at that time, sometime after the authors of that response indicated that they may have erred in their judgement. And, in 2005, with no changes to the Class Rules having been undertaken, that official response was no longer in effect.

Following the World Championship Regatta in 2011, we received another Request for Interpretation concerning the use of single panel sails and their construction. The response to that request was that the sails were legal under the existing rule and indicated that there was no need for any change of rule. They are legal under the current (and immediately previous) Class Rules. This ruling was prepared by the IOM ICA (the authorised governing body for the IOM Class) Technical Sub Committee and subsequently submitted to the IRSA (the recognized and authorised governing body for Radio Sailing worldwide)

Technical Chairman for approval. That approval, without further comment or direction was given prior to publicly issuing the response

That interpretation response is in effect now. Further, because it did not require a rule change to validate those sails (or their construction method), its result will continue to be in effect. They are constructed of a legal material and fit all other definitions for sails that are contained in the Class Rules. They must of course always pass any measuring test, as do sails constructed in any manner, regardless of how many panels they may have.

NCA Class Secretaries and/or their technical groups must refrain from making interpretative declarations concerning the IOM Class Rules. Opinion and declarations must support the findings of the Class Association and the Radio Sailing governing body.

We encourage the appropriate technical bodies in any NCA to field technical questions, submit Requests for Interpretation and offer their opinions and beliefs. However, it is the responsibility of the NCA to enforce the rules as issued and interpreted

by IRSA, the Radio Sailing governing body, and the Class Association. It is not unusual that there are many individual rules within the Class Rules that are not favoured by one country, or person. That occurs in almost everything that goes on in life.

Everyone can expect that rulings may not always go as they wish they would.

Barry Fox, IOM ICA Chairman