[Sonar] Grandfathered boats

[Mark Kochendorfer]

Thanks for all your hard work Ernie.

>From what I understand wider makes it possible to put more pressure on the
mast for a given uppers tension setting.  This is not valuable in a Sonar as
far as I know except maybe in very heavy air, but it is not harmful either.
 So Ryder owners should not feel that it is important to move them inboard.

Mark

On Mon, Aug 15, 2011 at 9:07 PM, Ernest Brody <epbrody at earthlink.net> wrote:

> So, here’s what we have learned about grandfathered boats.  Basically we
> take measurements and report results but if the boat is old (as most of the
> ones we’re dealing with are) and has not been modified in this particular
> respect,  it is grandfathered.  If it has been modified in the respect, it
> has to meet the specification.  Basically, the boats meet specification that
> was in force at the time they were built.  If I find any more deviations,
> I’m going to check with Gene Hinkel but I expect he is going to say to pass
> it.****
>
> ** **
>
> All keels, if not modified, before hull 650 are grandfathered.  To my
> knowledge, rumor notwithstanding to the contrary, this is the case for Fleet
> 5 boats.****
>
> ** **
>
> All hulls, before hull 350 are grandfathered for hull measurements.  ****
>
> **·         **This includes chain plate position.  Therefore, Ken, Eric,
> Allen, and Howard don’t have to mess with that.  Mark has messed with it so
> he must meet the new specification which I expect he will.  I expect the
> boat sails better with the narrower chain plates but modification is
> strictly voluntary.****
>
> **·         **The mast heel point on boats after 350 have been measured
> already except on Ben’s boat and 417 from Canada.  It will be easy.  On the
> before 350 boats I will have to figure out how to correct for the wood but
> it’s grandfathered.  My guess is that the tolerances are large enough that
> everyone will be OK.****
>
> **·         **You probably should look at the measurement form
> http://www.sonar.org/site/files/Library/Measurement_Info/Measurement%20Form%20v10.pdfso you know what is going on but all the stern to keel and stern to rudder
> will be grandfathered.  It’s not something people would modify willy-nilly
> in hopes of making the boat faster.****
>
> We discovered that Ken’s mast has the old saddle and tang spreader system.
> It is a 15 degree spreader angle.  The through-bar is a 10 degree spreader
> angle.  There are reasons that Ken might want to go to the through-bar like
> the tang welds break or the boat sails better, but we’re not going to force
> him to change it.****
>
> ** **
>
> That’s what I know right now.****
>
> ** **
>
> Ken and I measured two masts.  I measured Ken’s to show him how and he
> measured Sesame Street’s.  Once the mast is out of the boat it takes about
> an hour.  It’s the in and out process that takes time.****
>
> ** **
>
> As soon as possible after I return, I would like to measure as many of the
> masts as I can.  This could be done the week between Burton Cup and Labor
> Day.  Would someone take the leadership and start lining people up.  I think
> we could do two or three in an afternoon.****
>
> ** **
>
> Then I can do chain plates and mast heel points at my leisure during the
> week.****
>
> ** **
>
> Finally, we will do weights.  While we have the boats on the crane we can
> do the underwater measurements.  ****
>
> ** **
>
> We need to find a crane scale.  The specification is a certified digital
> scale with 1000 Kg capacity and 0.5 Kg resolution.  ****
>
> **·         **Marty – you got one.   Did it meet that specification?   ***
> *
>
> **·         **Would someone investigate with Kennedy Scale or Berne Scale
> to find out what they have and how much it costs?  What is the rental time?
> ****
>
> ** **
>
> I’ll be in e-mail contact as best as I can.  I’ll be back in time for
> Burton/MS Cup.****
>
> ** **
>
> Ernest****
>
> _______________________________________________
> Sonar mailing list
> Sonar at lists.wyc.org
> http://lists.wyc.org/mailman/listinfo/sonar
>



-- 
Mark
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.wyc.org/pipermail/sonar/attachments/20110815/3798ced6/attachment-0001.html>