Beneteau First 31.7 AVS

[SimonBrady]

When I first bought my Beneteau 31.7 I was told that it had an AVS of 130 degrees. I have since seen an IMS certificate for a 31.7 which calculates this as just 109 degrees. (a) does anyone know what the true number is or where to get it and (b) how can the numbers be so far apart?

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[Time_Out]

What is an AVS?
A friend of mine is a keen racer on 31.7 in IMS.
I might ask him.... .

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[MIKE_MCKIE]

ANGLE OF VANISING STABILITY.
This is where the boat will no longer tend to return to the upright when heeled by an external force, ie wind, waves, Mother in law on the gunnel etc etc. This is not to say that it will necessarily keep on going & come up the other side. It may well stop and stabilise with the mast vertically DOWNWARDS. A prime example is multihulls, but monohulls can do it as well.
brgds
Mike

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[robp]

AVS is just one of the criteria used in assessing stability. It probably appears in a number of specs used to apply a useage category under the RCD rules. (Recreational Craft Directive). When Beneteau certified the boat's conformity, they might have applied this figure but that would have been on a boat ex works. The fitting of Liferaft, Radar and anything else above the water line would have an effect on the number. You would probably get an informed discussion going on this on Scuttlebut.

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[Birdseye]

dont worry about it! had my boat for 7 years now. it has an avs somewhere around 80 degrees, and I've not been upside down yet. well not in the boat that is. /forums/images/icons/smile.gif

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