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hanschristian.org • View topic - Stability Index Rating for HC 48

Stability Index Rating for HC 48

Moderators: warmrain, mimoza

Stability Index Rating for HC 48

Postby ballymack » Tue Mar 15, 2011 4:53 pm

Hi - I am hoping to participate in a couple offshore races in our HC 48. Does anyone know the answer to the question below: Thanks!

I am trying to make sure we qualify for all of the requirements for the races and we need proof of compliance of a minimum stability index of 115; as determined by section 106 of the orc Rating system 2009, ORC International & ORC Club. Someone on the owners website may have this or know where to get it. Possibly The designer?? Any ideas?
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Postby waywardsuun » Sat Mar 19, 2011 1:23 pm

Hi, I have a HC 43 I'm working on. You might look at this web site, it could help. http://www.johnsboatstuff.com/technica.htm Look under dynamic stability.

Ward
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Postby waywardsuun » Sat Mar 19, 2011 1:30 pm

Hi Ballymack, I just looked at that site again and doubt it will help, but it is interesting.

Ward
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Thanks

Postby ballymack » Tue Mar 22, 2011 8:31 pm

ballymack
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Stability Index Rating for HC 48

Postby ballymack » Thu Apr 28, 2011 5:10 am

ballymack
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Stability Index Rating for HC 48

Postby ballymack » Wed May 18, 2011 1:56 am

Our 48 came in with a stability rating of 133 after performing a manual test and review of the original design drawings. Thanks to Scott Sprague for providing the drawings.

Just got a PHRF of 161 (after review). Was 120 before it was reassessed.
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