Pivoting center board

[hfcarrer]

Hello! I am in the market for a cruising boat and have been offered a J Sun Rise 35 with pivoting centerboard. As I plan to go across the Pacific to Polynesia, I am concerned about seaworthiness, particularly concerning the performance of such a boat in heavy seas. Can this boat right itself after a capsize? To quote J Vigor: "Anyone contemplating an ocean voyage with a keel/centerboard would be wise to consult a qualified naval architect about the boat´s ultimate stability" Also from J Vigor: "You should also ensure that the centerboard cannot crash through its housing in the event of a full capsize. If a heavy metal centerboard were fully extended at the time of the capsize, but not held firmly in place, it would cause considerable damage to the interior of the boat and could possibly plunge through the cabin top with disastrous results." "There are some boats in which the centerboard is housed in a stub keel of such a weight that it alone would provide sufficient ballast to right the vessel after capsize." Can anyone comment on this matter? Where can I obtain detailed technical specs on amount of ballast, center of gravity, etc? Thanks for your help.
Hugo

[MalcolmP]

Most Jeanneau's that have a lifting plate also have a full ballast keel so righting moments should not rely on the plate, but it would be wise to work out if it could be locked into the down position

There is some info at:
www.yachtsnet.co.uk/archives/sunrise-34/sunrise-34.htm
For detailed info it be worth trying the designer , who should be able to send you stability curves etc

www.fauroux.com/

A couple of years ago a SunRise (don't know which keel) did a non-stop circumnavigation without problem some info at:
www.sailinganarchy.com/fringe/2007/stand_alone.htm

good luck and keep us informed