John, I read the ORR definitions of the stability index; it was the limit of
positive stability plus (or minus) two other factors, so 125 degrees for the
121 and an adjustment. I'll see if I can dig out those adjustments later -
related to beam, displacement and lwl I think.
Tim
Mojito
C&C 35-
I was so surprised by these numbers I had to understand it better. Below is
the best definition I could find on the IMS “stability index” but I’m curious
how it is calculated. I’ve attached a link to the designer’s righting moment
curve for the 121 (deep keel). It would suggest a much more
The Lake Ontario 300 is classed as a cat. 3 race. If we don't have a stability
index for our boat, we can use one from a sister ship if it is available.
Mac McKenzie1983 C&C 37 - Worthy Pearl
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To change your list
C&C 40/37+ 121.6 (RUTAINE)
C&C 37-2 Deep Keel 124.3 (MICHELA)
On 5 March 2015 at 20:36, Kevin Driscoll via CnC-List wrote:
> 109.1
>
>
> On Thu, Mar 5, 2015 at 4:11 PM John Bousfield via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>> What does the C&C 36 rate?
>>
>> On Thursday, March 5, 2015,
109.1
On Thu, Mar 5, 2015 at 4:11 PM John Bousfield via CnC-List <
cnc-list@cnc-list.com> wrote:
> What does the C&C 36 rate?
>
> On Thursday, March 5, 2015, Joel Aronson via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>> All,
>>
>> I need to certify that my boat has a stability factor under OR
What does the C&C 36 rate?
On Thursday, March 5, 2015, Joel Aronson via CnC-List
wrote:
> All,
>
> I need to certify that my boat has a stability factor under ORR of 110 or
> more, IRC of 28 or more or STYX of 32 or more.
>
> Does anyone know the stability factor for a 35 Mk III or how to find
You missed the Landfall 48, at 145! :^)
Fred Street -- Minneapolis
S/V Oceanis (1979 C&C Landfall 38) -- on the hard in Bayfield, WI :^(
On Mar 5, 2015, at 5:20 PM, Tim Goodyear via CnC-List
wrote:
> Amazing - great information! It is interesting that you could enter one of
> our older b
ig-boats/orr/orr-scratch-sheets/2014-windward-leeward-5050-scratch-sheet-age-date-abs-and-stability-index/
> Looks like there are a few C&C 35s listed all with stability above 110, but
> you’ll have to see if they are MK III.
>
> Steve
>
> From: Joel Aronson via CnC-List
hey are MK III.
>>
>> Steve
>>
>> *From:* Joel Aronson via CnC-List
>> *Sent:* Thursday, March 05, 2015 3:48 PM
>> *To:* cnc-list@cnc-list.com
>> *Subject:* Stus-List Stability Factor
>>
>> All,
>>
>> I need to certify that my boat
age-date-abs-and-stability-index/
> Looks like there are a few C&C 35s listed all with stability above 110, but
> you’ll have to see if they are MK III.
>
> Steve
>
> *From:* Joel Aronson via CnC-List
>
> *Sent:* Thursday, March 05, 2015 3:48 PM
> *To:* cnc-
lity above 110, but
you’ll have to see if they are MK III.
Steve
From: Joel Aronson via CnC-List
Sent: Thursday, March 05, 2015 3:48 PM
To: cnc-list@cnc-list.com
Subject: Stus-List Stability Factor
All,
I need to certify that my boat has a stability factor under ORR of 110 or more,
IRC of 2
There's a spreadsheet a few posts down at this site, sorting the data by
Class shows C&C 35-3 have a range of ORR SI from 117 to 122.
http://www.boatdesign.net/forums/sailboats/perils-edgy-design-offshore-38903-30.html
Otherwise, it takes lines plans, weight data and calculations...
Neil Galla
@cnc-list.com
Subject: Stus-List Stability Factor
All,
I need to certify that my boat has a stability factor under ORR of 110 or more,
IRC of 28 or more or STYX of 32 or more.
Does anyone know the stability factor for a 35 Mk III or how to find it?
--
Joel
301 541 8551
You might be able to find STIX info in the ISO standard 12217 doc’s:
http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=55957
It looks like a STIX of 32 corresponds with Beaufort Force 10 (48-55 knots), or
what they refer to as Category A.
— Fred
Fred Street -- Min
Take a crane to the masthead and tip it over… :^)
Fred Street -- Minneapolis
S/V Oceanis (1979 C&C Landfall 38) -- on the hard in Bayfield, WI :^(
On Mar 5, 2015, at 2:48 PM, Joel Aronson via CnC-List
wrote:
> Does anyone know the stability factor for a 35 Mk III or how to find it?
__
All,
I need to certify that my boat has a stability factor under ORR of 110 or
more, IRC of 28 or more or STYX of 32 or more.
Does anyone know the stability factor for a 35 Mk III or how to find it?
--
Joel
301 541 8551
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