Hi all,
Anybody could help me with the STIX of the C-36 TR?
I was able to find that of the C-34 boat not for the 36.
Thanks a lot!
Greetings from the Med!
EUREKA II
C-36 hull 1122
—
Eladio Vallina
C-36 TR EUREKA II
Hull 1122 (1991)
Home port Barcelona (Spain).
Eureka,
I'll save others the embarrassment. What is a STIX? Other than the rock band from the 70's (spelled differently), I've never heard the term before.
Tom Sokoloski
C36/375IA Past Commodore
Noank, CT
I think it is a European stability index. If no one on this Forum has the information at hand it would probably be best to call the Catalina factory in Largo, Florida. Please share the information when it's finally known.
Larry Brandt
S/V High Flight #2109
Pacific Northwest, PDX-based
2002 C-36 mkII SR/FK M35B
Yes indeed the STIX is stability index value (STIX) that allows meaningful stability comparisons between various designs."
About the value of STIX as a useful tool to assess a boat stability I have found of interest the opinion that Bob Johnson (president of Island Packet Yacht) wrote in a letter published in Sail Magazine:
...."As the U.S. participant on the international work group of designers and naval architects responsible for developing this particular ISO standard, I''d like to provide some background on its development and shed some light on why I believe it will grow to have considerable value to both the design community and the boat owner."
" As Dave''s article illustrates, the accurate stability assessment of any sailboat is a complex process. Numerous design characteristics influence the ability of any boat to safely resist or recover from capsize, ranging from downflooding openings to the shape of its righting-moment curve. In all, the ISO work group found that seven different calculated factors encompassed all significant stability concerns and, taken together, could establish a single stability index value (STIX) that allows meaningful stability comparisons between various designs."
"The minimum STIX value for each category was created and validated from a study of a large number of existing sailboats, ranging in size and type, that had experienced capsize events, with and without successful recovery. Good correlation was eventually obtained between theory and practice, and the final STIX standard, I think, encompasses all critical stability factors in an analytical method that is based on established principles of naval architecture, sound methodology, and correlates well with real-world experience for real boats. No other single stability-assessment method, to my knowledge, is as comprehensive as STIX. "
Bob Johnson, President
Island Packet Yachts
Largo, Florida
Sorry for the long post.
STIX should be over 32 to be consider Ocean vessel going. The thumb rule is a boat should have at least a STIX = to her lenth overall.
Catalina 34 has a STIX of 36, so good.
I might ask Kent from Catalina yard. He has been always extremly helful.
Best regards and thanks a lot.
EUREKA II
Eladio Vallina
C-36 TR EUREKA II
Hull 1122 (1991)
Home port Barcelona (Spain).
Thanks Tom. Yes, I think that would be a very interesting number for all of us to know.
Glenn Druhot
Carpe Diem
New Bern, NC
35* 6' 10" N / 77* 2' 30" W
2001 C36, Hull #1965
Std Rig; Wing Keel; M35B
I'd be very interested in what Ted Brewer thinks about this. His articles comparing various boats appears in "Good Old Boat" regularly, and I recall he has developed some "comfort factor" figures of his own. I wonder if he has participated in the discussions Bob has had.
I would also like a link from the OP to where he found that STIX for the C34, since I have never heard of it before this, and would like to keep our membership advised of this information. A link would be of great value.
Thanks, Stu
Stu Jackson, C34IA Secretary, C34 #224, 1986, SR/FK, M25 engine, Rocna 10 (22#)
[url]http://www.ircrating.org/en/technical-a-certification/sssn-a-stix.html[/...
Here is the link. Hope it helps.
Best regards,
EUREKA
Eladio Vallina
C-36 TR EUREKA II
Hull 1122 (1991)
Home port Barcelona (Spain).
[url]http://www.rya.org.uk/SiteCollection...g%20080201.xls[/url]
Here you will find the details for C-34
Regards,
EUREKA
Eladio Vallina
C-36 TR EUREKA II
Hull 1122 (1991)
Home port Barcelona (Spain).
Did anyone ever track down a stability curve / GZ curve / STIX for the Catalina 36? Or even a simpler question, the max righting moment number?
Jason V
Vancouver, BC, Canada
I do not remember the source that I read a few years ago - there are 3 categories of sailboats. A, B, and C. C - means that it is suitable for coastal cruising - not for circumnavigation in the open ocean. C36 is a C. A and B are ocean friendly and comfortable to sail in large waves and hard to capsize. Hans Christian is an A. There are cruisers and racers. Since C36 is both it is half of each.
I would like to know what the grade is that is given to C36 measured more accurately - and what its capability is when it comes to capsizing. I remember that if the mast is below 140 degrees compared to vertical - then it will not roll and if it does it will continue rolling and right itself - if you have not seen " LOST" the movie - take a look. It does largely depend on the sailor that is sailing her as well.
Haro Bayandorian, 1999 C36 MKII, Sail La Vie #1787, M35B,
Coyote Point, San Mateo, CA.