Angle of Vanishing Stability

[Joli]

Originally Posted by Therapy

Actually I just thought of another easier way.

Hummmmm.

Yes, its called lead.

[cat man do]

Originally Posted by Joli

Yes, its called lead.

The guaranteed to sink approach eh .

Dave

[delmarrey]

Originally Posted by Therapy

You know, looking at that made me think.

If one had two hinges on the mast in the right place and a water holding bag and a hand pump then a cat could be righted by the crew in a seaway.

Actually I just thought of another easier way.

Hummmmm.

The industry has been experimenting with float bags that are attached or hoisted down the mast (boat turtle) that can be inflated to rise the masthead to the suface. Once up that far a power boat can assist with pulling them back over and upright. That's providing the mast stays secure.

The other method was to close off hatches and and flood one hull as well as a float at the mast head. Then once the mast is up out of the water then pump out the submerged hull. This, of course, was a special built cat just for the test. But probably not practial for a crusing cat.

[Factor]

Originally Posted by cat man do

Note how high Rogntudjuuu floats, the hull on the left of pic is clear of the water, so bouyancy in beams and pod/cabin was enough for her to float high (unlike a capsized mono)

Dave

Interesting thing is that there were two of the Crowther southern Ocean designs in this race, Rogntudjuu and Raw Nerve - and Raw Nerve has a higher rig and more sail area.

[Wayward Wind]

Saw Raw Nerve at The Spit in Middle Harbour, Sydney. Pity my pic, taken from a distance, does not do it justice. Up close, it looked awesome.

John

[Joli]

Originally Posted by cat man do

The guaranteed to sink approach eh .

Dave

True enough, every thing is a compromise.