This page is for lodging material that can be accessed easily by the MYA’s Official Measurers.
SAIL MEASUREMENT – SAIL MEASURER
A Sail Measurer is appointed by the RYA as an Official Measurer after successful completion of the Sail Measurement Course – MYA Measurers – How to Become One.
The Sail Measurement Course is applicable to all classes that follow the ERS and SCR system for sail measurement thus permitting easy access to Section G of the class rules that is relevant to sails. The IOM, M, 10R, 6M and A Classes all fall into this category.
By its nature the Sail Measurement Course deals with the basic principles of certification of sails and concentrates on those terms and measurements common across many classes and as defined in the ERS.
However, there are other class rules that are specific to the classes we sail and which introduce peculiarities that will not be covered by the Sail Measurement course. The Official Sail Measurer Supplementary Notes (see below) collate that material together in a form that is readily accessible to the Sail Measurer.
CLASS MEASUREMENT – CLASS MEASURER
A Class Measurer is appointed by the MYA after demonstrating knowledge of the process – MYA Measurers – How to Become One.
Generic Measurer Study Material – provides the basic building blocks and information for measurers of all classes.
Class Specific Study Material – provides information that is essential to measurers of that specific class.
When you are confident of your knowledge of the class rules and certification process, please contact the MYA Technical Officer who will provide questions that will allow you to demonstrate your knowledge. Once this step is passed you will be asked to demonstrate your abilities to an existing Class Measurer.
Those wishing to become 6 Metre and A Class measurers will also need to learn how to take the more complex measurements of hulls that are beyond the scope of these documents.
36” & 6 Metre CLASS MEASURER
The 36” and 6 Metre Class rules no longer require measurement of equipment (except for sails of 6 Metre class) to be carried out by an Official Measurer (Sail Measurer). It is sufficient to be appointed by the MYA alone.
WEIGHING EQUIPMENT – CALIBRATION
Accurate weighing of equipment is essential in the IOM, 10R, 6 Metre and A Class. Different approaches to this aspect of measurement have evolved creating a lack of confidence.
However, the Generic Measurer Study Material specifies a standardised procedure that identifies whether the equipment used is of a satisfactory standard and corrects any measurement taken by comparison with known standards (calibration weights).
MYA Weighing Equipment Correction – gives a standardised procedure using a MS Excel spreadsheet.
CERTFICATION SOFTWARE
Please note that the certification software of the classes referred to here, and the MYA Weighing Equipment Correction software, use MS Excel spreadsheets. The class rules require a valid certificate to be issued on the approved software. Attempting to use that software on machines that are not capable of working correctly with MS software will not result in a valid certificate and may frustrate the patience of the MYA’s registrars.
MEASURER INSURANCE
The MYA’s insurance policy covers the work of measurers in their official capacity up to a value of £250K
LINKS
Guide Note – to Candidate Measurers 2025
Equipment Rules of Sailing – ERS
