j24 vs j24 ODR

[cookie]

What's the diff?

We are hosting a regatta and to make even splits we are looking at splitting at 166 so a j24 and a j24 odr are in different fleets even though their jibs and spinakers are the same size so...wtf?

[JamieDike]

THE ODR rule takes into account all the class rules for the One Design, not just sail sizes.
That is where you see a rating difference.

Also ODR classes do not have NFS ratings. It is assumed that ODR boats will always race Onedesign configuration and not Non Flying Sails.

Jamie Dike
TORE

[John Crawley]

The J 24 class rules measure the spinnaker mid luff to mid leech, where PHRF LO measures the maximum width.  The class legal spinnaker girth is over 180% by PHRF measurments and gets a 3 second per mile penalty.

The maximum width is above the mid luff and leeck measuremnt points and is larger than the J 24 measurment.

[cookie]

OK, that explains it. In the end we offered the non ODR the opportunity to sail with the others at their rating but he declined.

[Dumb as Hell]

I am not sure I get this!! I have heard it before but don't think I understand. I know of at least two classes rated by PHRF-LO that if you measure the boat the ODR rating is not what the ASP is equal to. Based only on sail measure. I am still not sure I understand what is used within the one design rules. The assumption would be that it should only be sail size. Could you straighten me out I am very confused!
  The other question that comes to mind is can a boat carry an ODR cert and a standard cert? I mean when they sail white sail they are not in ODR form so should be allowed to have the nfs cert. Yes NO?

[John Crawley]

Name the classes.

At a Central Council meeting in the spring, this was looked at and changes were made so that the OD rating reflects the SP plus any adjustments for class rules.   

The class rules were looked at, maximium sail dimensions were noted and the non OD SP was adjusted to match the OD rules and a few classes had the OD rating adjusted.

One of the problems is that not all of the OD rules specify LP of the genoa, some of them give leech, luff and foot maximum dimensions only with no LP.

[Dumb as Hell]

So if I understand this right. Before there was a chance that an ODR boat would not be it's sp + measurement. Now however the ODR rating would be the same as if you just measured the sails and applied the adjustment to the SP. That sounds like an improvement and much fairer. The only reason to go ODR is to save sail measurement.