Mike Lynch missing....

[Blackmac]

I know the square root of zero about boats, but surely it is possible for these boats to have some sort of anti capsizing capability. I'm thinking some sort of airbag deployment if it tilts beyond certain parameters.

[inactionman]

I know the square root of zero about boats, but surely it is possible for these boats to have some sort of anti capsizing capability. I'm thinking some sort of airbag deployment if it tilts beyond certain parameters.

It's got ballast in the keel - a fecking heavy great mass of lead or concrete essentially hanging at the bottom of the boat - to keep it righted. It absolutely needs this to correct the moment caused by the wind on sails.

It should be very hard to capsize a yacht as the tipping moment caused by wind on sails diminishes as it heels, whereas the righting moment by the ballast increases. Of course it does happen, but usually in sustained bad seas and with very heavy winds, but even then you can make the sails smaller or swap them for storm sails o reduce the chances of being blown over. I'm not sure that's relevant here as the sails wouldn't even have been out if it was moored/anchored.

I am hearing that the keel was lifted - some , such as fin keels which are like upside down shark fins that protrude from the bottom of the boat - can be raised for e.g. navigating very shallow water. I'm not sure why they've done that in 50m water, unless the storm dragged them from a shallower anchorage.

[shaggy]

I know the square root of zero about boats, but surely it is possible for these boats to have some sort of anti capsizing capability. I'm thinking some sort of airbag deployment if it tilts beyond certain parameters.

It's got ballast in the keel - a fecking heavy great mass of lead or concrete essentially hanging at the bottom of the boat - to keep it righted. It absolutely needs this to correct the moment caused by the wind on sails.

It should be very hard to capsize a yacht as the tipping moment caused by wind on sails diminishes as it heels, whereas the righting moment by the ballast increases. Of course it does happen, but usually in sustained bad seas and with very heavy winds, but even then you can make the sails smaller or swap them for storm sails o reduce the chances of being blown over. I'm not sure that's relevant here as the sails wouldn't even have been out if it was moored/anchored.

I am hearing that the keel was lifted - some , such as fin keels which are like upside down shark fins that protrude from the bottom of the boat - can be raised for e.g. navigating very shallow water. I'm not sure why they've done that in 50m water, unless the storm dragged them from a shallower anchorage.

Lifting the keel alone would be unlikely to cause a sinking event. There needs to be a mechanism whereby progressive flooding occurs such that the righting moment can no longer return the vessel upright and the cabin floods.

[inactionman]

I know the square root of zero about boats, but surely it is possible for these boats to have some sort of anti capsizing capability. I'm thinking some sort of airbag deployment if it tilts beyond certain parameters.

It's got ballast in the keel - a fecking heavy great mass of lead or concrete essentially hanging at the bottom of the boat - to keep it righted. It absolutely needs this to correct the moment caused by the wind on sails.

It should be very hard to capsize a yacht as the tipping moment caused by wind on sails diminishes as it heels, whereas the righting moment by the ballast increases. Of course it does happen, but usually in sustained bad seas and with very heavy winds, but even then you can make the sails smaller or swap them for storm sails o reduce the chances of being blown over. I'm not sure that's relevant here as the sails wouldn't even have been out if it was moored/anchored.

I am hearing that the keel was lifted - some , such as fin keels which are like upside down shark fins that protrude from the bottom of the boat - can be raised for e.g. navigating very shallow water. I'm not sure why they've done that in 50m water, unless the storm dragged them from a shallower anchorage.

Lifting the keel alone would be unlikely to cause a sinking event. There needs to be a mechanism whereby progressive flooding occurs such that the righting moment can no longer return the vessel upright and the cabin floods.

I'd think that sort of keel is more to reduce leeway, not so much for ballast - I can't imagine lifting the keel shifted the ballast much if at all. I'm not sure what went on, other than the weather looked mental and the yacht wasn't tightened down for it.

[Rhubarb & Custard]

It's also 50m down, that's 5atm, best of luck breathing air in a 5atm !

Just because it turns the oxygen toxic is no reason to panic, actually you might get lucky and enjoy feeling rat arsed. Maybe you even reach a point where you can reliably answer electrocution vs shark as a means of death

Didn't think that would be an issue?
The O2 would still be 21% of the available air.

That's the problem, well part of, you'd want less oxygen than that.

[Uncle fester]

Just because it turns the oxygen toxic is no reason to panic, actually you might get lucky and enjoy feeling rat arsed. Maybe you even reach a point where you can reliably answer electrocution vs shark as a means of death

Didn't think that would be an issue?
The O2 would still be 21% of the available air.

That's the problem, well part of, you'd want less oxygen than that.

What do they do for breathing air at that depth? I know nitrogen becomes a problem but the partial pressure of the gases wouldn't be changing from sea level, just the absolute pressure.

[shaggy]

It's got ballast in the keel - a fecking heavy great mass of lead or concrete essentially hanging at the bottom of the boat - to keep it righted. It absolutely needs this to correct the moment caused by the wind on sails.

It should be very hard to capsize a yacht as the tipping moment caused by wind on sails diminishes as it heels, whereas the righting moment by the ballast increases. Of course it does happen, but usually in sustained bad seas and with very heavy winds, but even then you can make the sails smaller or swap them for storm sails o reduce the chances of being blown over. I'm not sure that's relevant here as the sails wouldn't even have been out if it was moored/anchored.

I am hearing that the keel was lifted - some , such as fin keels which are like upside down shark fins that protrude from the bottom of the boat - can be raised for e.g. navigating very shallow water. I'm not sure why they've done that in 50m water, unless the storm dragged them from a shallower anchorage.

Lifting the keel alone would be unlikely to cause a sinking event. There needs to be a mechanism whereby progressive flooding occurs such that the righting moment can no longer return the vessel upright and the cabin floods.

I'd think that sort of keel is more to reduce leeway, not so much for ballast - I can't imagine lifting the keel shifted the ballast much if at all. I'm not sure what went on, other than the weather looked mental and the yacht wasn't tightened down for it.

I gave you a qualified statement from a position of knowledge. Your thinking is not relevant here.

[inactionman]

Lifting the keel alone would be unlikely to cause a sinking event. There needs to be a mechanism whereby progressive flooding occurs such that the righting moment can no longer return the vessel upright and the cabin floods.

I'd think that sort of keel is more to reduce leeway, not so much for ballast - I can't imagine lifting the keel shifted the ballast much if at all. I'm not sure what went on, other than the weather looked mental and the yacht wasn't tightened down for it.

I gave you a qualified statement from a position of knowledge. Your thinking is not relevant here.

God save us from discussion boards, eh.

[shaggy]

I'd think that sort of keel is more to reduce leeway, not so much for ballast - I can't imagine lifting the keel shifted the ballast much if at all. I'm not sure what went on, other than the weather looked mental and the yacht wasn't tightened down for it.

I gave you a qualified statement from a position of knowledge. Your thinking is not relevant here.

God save us from discussion boards, eh.

Discussion or ignorance?