Here you can read a bit about stability. (nothing on regulations or dependence on the parameters - but there is not a lot one the net one can post)

I do not think that the passenger’s perceptions about the cause of the incident are very helpful. They can only accurately comment on the effects.

For example, the Master may have been avoiding collision with an obstacle, such as a small boat, which the passengers never saw.

'Crown Process' - I like it!

[ 07-20-2006: Message edited by: Malcolm @ cruisepage ]

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Originally posted by PamM:
... do these guys always exaggerate?

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quote:

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I do not think that the passenger’s perceptions about the cause of the incident are very helpful. They can only accurately comment on the effects.

For example, the Master may have been avoiding collision with an obstacle, such as a small boat, which the passengers never saw.

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P.S. As some use % as found on road signs - mind you that 100 % inclination is 45 degrees - so 5 degrees would be app. 9% and 15 degrees would be app. 27 % - remember that when you come across such a road sign the next time.

[ 07-20-2006: Message edited by: Ernst ]

At the time of QM2's trials someone posted a photo of her making a crash turn to port (taken from a plane or helicopter) on Cruise Talk. What was impressive about the photo was how little QM2 heeled over to starboard. I have been searching unsuccessfully for a copy of that photo that I downloaded and another one taken from the bridge.

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Originally posted by Brian_O:
Gerry

At the time of QM2's trials someone posted a photo of her making a crash turn to port (taken from a plane or helicopter) on Cruise Talk. What was impressive about the photo was how little QM2 heeled over to starboard. I have been searching unsuccessfully for a copy of that photo that I downloaded and another one taken from the bridge.

Brian

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Brian,

Here's a picture from the bridge during a sharp turn that was originally posted back then...

Larger Version

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Originally posted by PamM:
I think the guy only said 'nearly'? I imagine if looking down from above, quite a fair distance could be called 'nearly', purely because it was an awful lot nearer than normal

Pam

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It just an illusion caused by a lack of an external physical frame of reference, and that affects your depth perception. When the ship heels a bit and you cannot see its side below you, then the water looks a lot closer than it really is. If you are not used to the phenomenon then it can be quite frightening.

That's one of the two photos I was looking for. I think the other was originally posted on the WSSNY web site in their long photo essay on the building of QM2 (which included a few excellent photos taken by Pam, I might add).

Brian

[ 07-20-2006: Message edited by: Brian_O ]

Where is the point in ship design in which a hull ceases to "bank" in a high-speed turn, as does a runabout, and starts to lean?

I have been aboard some large yachts in my day, but never encountered leaning, only banking, and those were at very moderate speeds.

I remember in a convoy in the Pacific during WWII when a Destroyer Escort at high speeds threaded its way throughor pack of ships, leaning outboard mightily at the time - - -very impressive.

Cambodge,

Its to do with scale and power to weight. If you looked at a cross section of a small boat, the propeller is a long weigh below the centre of gravity in relation to the cross section, when the outboard, for example is put over, it causes a torque on the boat and forces the bottom half to the outside of the turn, therefore the top of the boat leans into the turn. For a large ship, it acts like a car. There is not enough power far enough away from the centre of gravity to force the bottom of the ship to the outside of the turn so naturally the top part falls away from the turn through centrifugal force, like a car.

I'm going to show this to my wife, I think I'll get a T-shirt made with supergerry on. She'd kill me....

Rogue waves aren't really considered when desiging the ships. There are regulations in place and the intended service of the ship and area of operation always has a bearing (she may need ice strengthening for example).