Measurement and Certification Procedure

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Enthusiasts are encouraged to get a valid certificate for their boats to ensure compliance with class rules, which have been created to promote fair competition. The certification service is provided FREE to all affiliated MYA club members by the MYA, which is the certification authority for model yachting in the UK.

The boat measuring and certification procedure for the international classes is well documented in Section A of the class rules and your club official measurer will be able to provide guidance if you don’t already have a copy of these rules and related documents. They are available via links on this site from the IOMICA and IRSA websites along with the Equipment Rules of Sailing (ERS) and the Racing Rules of Sailing (RRS) all of which have a bearing on your boat, sail numbers etc.

Similar procedures apply to the National 6m and 36″ classes. The format of International class rules relies heavily on reference to standard definitions that apply to all boats, whatever the size. These are contained in the ERS and you do need a copy of this for the exact meaning of the words used in the rules. The use here of words in bold (other than headings) refer to the defined terms in the ERS.

To obtain a certificate in the International Classes follow the procedure described in Section A of the class rules.

For a new boat, this can be summarised as the following:

  • Ask the class registrar for a hull registration number. The number remains open for twelve months after which time it may be reallocated if certification is not completed.
  • Arrange for an official measurer to measure the boat.
  • Before presenting your boat for measurement make sure that the hull, hull appendages, ballast, rigs, sails and associated fittings and all other items of equipment used, comply with the rules.
  • Send the completed measurement forms to the class registrar.

For a previously certified boat:

  • Where a boat has changed ownership the certificate ceases to be valid and you will receive a valid certificate by following the procedure described on the certificate itself.
  • Where an older certificate does not have a space for the new owner’s undertaking to maintain the boat in compliance with the class rules, a change of ownership form is available by email from your local District Senior Measurer, the Technical Secretary, the MYA website or via your club e-mail contact. Complete this form and send it with the old certificate to the class registrar.
  • There is no certification fee, but YOU MUST SEND AN SAE if you want the registrar to send you the certificate by post.

Please note several points that often occur and cause unnecessary problems for the registrars who give their time generously on your behalf.

  • Don’t assume that class registrars will always be on hand to deal with your certificate. They need holidays too!
  • If there is not much time available before you will first need your certificate, it is wise before you send your measurement forms to check with the registrar that he will be able to get it back to you in time. If this is not possible, there is a 7-day grace period for presenting the certificate to the organising club after an event, provided that a valid certificate exists at the time of that event.
  • If you wish to use new equipment on a previously certified boat your club official measurer will be able to advise whether measurement is required. For example, except in the 36″ class, new sails always need measurement.

Extracts from the ERS definitions for information and related MYA notes and RECOMMENDATIONS:

Official measurers C.4.3 A measurer appointed, or recognised by the MNA of the country where the measurement takes place, to carry out fundamental measurement.

Fundamental measurement C.4.1 Measurement required to ensure compliance with the class rules

Please note that the MNA for the UK, the RYA, has delegated measurers accreditation to the MYA. On the measurement forms, the RYA is the MNA that officially recognises official measurers.

Certificate C.5.3 Documentary proof, issued by the certification authority, of successful fundamental measurement of the hull, or any other parts required by the class rules or a certification authority.

THE MYA RECOMMENDS THAT IN ADDITION TO THE REQUIREMENTS FOR OBTAINING A CERTIFICATE, MEASURERS ALSO CHECK CONFORMITY WITH THE RULES OF SECTION C OF THE CLASS RULES AND CONFORMITY WITH SAIL IDENTIFICATION IN ACCORDANCE RRS E6 USING THE MYA FORM CREATED FOR THE PURPOSE FOR THE IOM CLASS.

The measurement details and any relevant forms for each Class can be found via the links on this knowledge base

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