Class rule official interpretation 1 - rule C.6.1 (d)

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paul manning
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Class rule official interpretation 1 - rule C.6.1 (d)

Postby paul manning » Tue Dec 29, 2015 7:33 pm

Rule C.6.1​ MODIFICATIONS, MAINTENANCE AND REPAIR
(d)​Cleats, blocks and their fittings supplied by any manufacturer may be replaced in the same position as the standard fitting or as close as structurally possible. Replacement cleats shall be substantially the same size and design. Replacement blocks shall have the same number of sheaves of a similar diameter.

The class IM confirms that in the last sentence of this rule the word 'similar' can be a sheave diameter between 40 - 60mm when applied to the spinnaker ratchet blocks.
Paul Manning
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duchonic
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Re: Class rule official interpretation 1 - rule C.6.1 (d)

Postby duchonic » Thu Feb 11, 2016 8:47 am

the 49er use this C.6.1(h):
Any block may be replaced with a block of the same number of sheaves of similar or greater diameter
Nicolas Duchoud, SUI

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Re: Class rule official interpretation 1 - rule C.6.1 (d)

Postby paul manning » Thu Feb 11, 2016 7:22 pm

Hi Nicolas

Yes, but the problem is they don't have a definition for 'similar'. So if the boat is supplied with 50mm ratchets, they can only use the supplied or bigger ratchets or 'similar' size ratchets.
Is a 40mm ratchet similar, when it's 20% smaller?

We've decided to define 'similar' for this purpose.
Paul Manning
MSCA Secretary

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Fax 0044 (0)1621 785735
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