Seguridad ¡¡ Perder La Quilla Es Inadmisible !!

[manolouk]

Originalmente publicado por NEFTA

No lo tienes en ruso?

Sucedio en Inglaterra por lo que es normal que este en ingles, si hubiera sido en Rusia...

El traductor de google aunque no es ninguna maravilla te puede ayudar.

Esta es una explicacion de porque no volco

According to brochure specs here: http://www.jeanneau.fr/inventaire/br...080229_90_.pdf

Ballast ratio is 30% (Polbream is the deep keel version) which is relatively low. A Contessa 32 (everyone's favourite comparison!) is 47% so if you lost your keel in a CO32 you'd ride comparatively higher.

Modern boxy, beamy hulls have a higher Block Coefficient (ratio of actual displacement to disp of a box size of Lwl x Bwl x hull depth) and so rise and sink less when weight is added or taken away. This factor is known as sinkage or immersion (measured in Pounds per Inch Immersion)

SO37 has a beam to length ratio of just under 3. Increased beam leads to increased stiffness intially (steeper/higher intial curve on GZ chart) but less self-righting ability and a lower angle of vanishing stability.Also in an older CO32 type with slacker bilges it would immediately feel more tender and possibly want to sit over on it's side. On a modern high volume hull the effect would be less noticeable. I would imagine the beam waterline would not be reduced as much by riding higher.

The indication was there though in it's 'skaty' handling and increased turn radius.

I would guess that even though 'knocked down' she just didn't reach her (keel-less) AVS and came up as a result of form stability alone. In beamy flat bottomed boats there is an enormous outward shift of the centre of buoyancy as the boat heels. Even a dinghy will come back up from 70-80 degrees if not flooded.

A boat like the SO37 (in normal operation) is relying much more on form stability and much less on ballast than the CO32 type. Hence it's less devastating when the ballast exits stage right!