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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Thu 25, 2023 11:26 am 
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Location: Mechanicville NY 12118 USA
Blustar1 wrote:
bobwilson1977 wrote:
Most of the modern, giant cruise ships have a potentially fatal flaw: They are now very top heavy and the only reason they stay reasonably upright is that they have computer controlled stabilizers. If any of these things were to be out in the middle of the Atlantic in a squall and that system failed, they could very easily capsize. Then again these ships hardly every do anything other than hug the coasts and make short trips



Yes, and as I had earlier stated, today's modern cruise ships weren't designed for ocean crossings, but rather (as you say) for limited travel such as "hug(ging) the coasts and mak(ing) short trips".


Not sure just the CA to HI run alone can be called a 'short trip' at ~ 2500 miles - not much coast to hug.

Art


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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Thu 25, 2023 1:28 pm 
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If a ship is certified to take on passengers on a US dock, there is little chance that it would be unsafe. Note that today's ships have constant access to weather at sea and should have no problem avoiding anything dangerous. The stabilizer systems have built in redundancy like critical aircraft systems. And there are unlikely to be icebergs between LA and Hawaii :D

Seems the biggest risk on a modern day cruise ship is a norovirus outbreak, which is by no means pleasant. A risk of fire is the one that probably keeps the captain up at night.

FWIW, the QE2 once encountered a 100 foot high rogue wave: https://www.roblightbody.com/qe2-1995-freak-wave.html

Of course, nothing in life is guaranteed except for death and taxes. The ocean probably does still retain the capability to sink just about any ship on the open seas (except perhaps for a Sunfish; swear that nothing sinks those :) ). As the story of the Munchen reminds:

https://en.wikipedia.org/wiki/MS_M%C3%BCnchen


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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Thu 25, 2023 1:58 pm 
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Location: Grand Rapids, Michigan
ArtFromNY wrote:
Blustar1 wrote:
bobwilson1977 wrote:
Most of the modern, giant cruise ships have a potentially fatal flaw: They are now very top heavy and the only reason they stay reasonably upright is that they have computer controlled stabilizers. If any of these things were to be out in the middle of the Atlantic in a squall and that system failed, they could very easily capsize. Then again these ships hardly every do anything other than hug the coasts and make short trips



Yes, and as I had earlier stated, today's modern cruise ships weren't designed for ocean crossings, but rather (as you say) for limited travel such as "hug(ging) the coasts and mak(ing) short trips".


Not sure just the CA to HI run alone can be called a 'short trip' at ~ 2500 miles - not much coast to hug.

Art



While the large cruise ships are technically capable of transoceanic crossings, they certainly wouldn't be one's first choice in that regard. On the other hand, ocean liners are specifically built for transoceanic journeys, and all of them incorporate large amounts of steel in their hulls. In addition, the bows on those ocean liners (such as the Queen Mary 2) are tapered and long which will allow the ships to cut through waves. Lastly, the ocean liners are typically more stable than the large cruise ships while still being designed for speed

Actually, most of the large cruise ships are located in the Caribbean and along the Pacific coast where they typically hug the shore line. As for the trip from CA to HI on one of those big cruise ships, that would be pushing the envelope (IMHO). In addition, one will likely spend far more time on those slow moving tubs than the actual Hawaiian vacation itself. In that respect, this would be why most tourists would opt for the plane flights to and from that Polynesian archipelago.


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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Fri 26, 2023 11:09 am 
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Just saw a TV show about the Titanic. It turns out that one of the funnels was a fake included to make the ship look more impressive.

RRM


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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Fri 26, 2023 11:24 am 
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Retired Radio Man wrote:
Just saw a TV show about the Titanic. It turns out that one of the funnels was a fake included to make the ship look more impressive.

RRM

True!

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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Fri 26, 2023 1:23 pm 
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Retired Radio Man wrote:
Just saw a TV show about the Titanic. It turns out that one of the funnels was a fake included to make the ship look more impressive.

RRM



Yes, the non functional funnel had already been well documented. Even then, with its mammoth reciprocating steam engines, the giant ocean liner could develop enough reserve capacity to power a small town.

In fact, the Titanic's massive steam engines created 16,000 amps of 100-watt electricity which was used to power the onboard lighting, fans, heating, winches, cranes, and onboard elevators. The Titanic also had backup electrical generators.

In addition, it was estimated that there were around 10,000 electric light bulbs aboard the Titanic Of course, that was not to mask the fact that those giant steam engines still had more than enough capacity to also drive the Titanic's mammoth propellers at a full 23 knots across an open sea.


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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Sun 28, 2023 3:00 pm 
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Another flaw in the Titanic that may have been a prime factor in it's sinking was the poor quality of steel used for it's hull.

Metallurgy testing of steel samples from the Titanic hull plates showed lots of imperfections and impurities in the steel. This
was a possible reason for the extensive fracturing upon striking with the iceberg at over 20 knots. Also, water temperature at the Titanic sinking was 28-29 degrees F and may have been a contributing factor in the failure of the steel and the rivets during impact. Technology in steel production was in it's infancy back in those times.

Jeff


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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Sun 28, 2023 4:22 pm 
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lexrageorge wrote:
If a ship is certified to take on passengers on a US dock, there is little chance that it would be unsafe. Note that today's ships have constant access to weather at sea and should have no problem avoiding anything dangerous. The stabilizer systems have built in redundancy like critical aircraft systems. And there are unlikely to be icebergs between LA and Hawaii :D

FWIW, the QE2 once encountered a 100 foot high rogue wave: https://www.roblightbody.com/qe2-1995-freak-wave.html

https://en.wikipedia.org/wiki/MS_M%C3%BCnchen



It would take a lot for a tidal wave or tsunami to sink either the QE2 or the Queen Mary 2. Actually, I have my doubts that those mammoth ocean liners could be sunk by such a force even if they were struck on the side. This is exactly why a transoceanic crossing with a cruise ship would not be one's first choice.

Yes, the fake funnel on the Titanic has already been exhausted.


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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Sun 28, 2023 5:51 pm 
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Blustar1 wrote:
.
Yes, the fake funnel on the Titanic has already been exhausted.
.

They paint on photography smoke coming from dummy exhaust funnel.

The steel they used was great foe 1912.
Steel improved in 1930s call mid steel then again in the 1950's witch the quality we use today most steel today is A36

Dave


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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Mon 29, 2023 5:37 pm 
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https://www.infowars.com/posts/carnival ... s-flooded/


Yes, this is exactly why the big cruise ships would not only be unfit for transoceanic voyages, but totally unsafe. On the other hand, ocean liners are specifically designed for such travel.


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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Mon 29, 2023 7:17 pm 
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Inforwars is Alex Jones.

RRM


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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Mon 29, 2023 9:29 pm 
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Retired Radio Man wrote:
Inforwars is Alex Jones.

RRM



Yes, but the article itself was apolitical. In any case, I think that the point was made.


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 Post subject: Re: Think The Titanic Was Big?
PostPosted: May Tue 30, 2023 5:14 am 
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Blustar1 wrote:

It would take a lot for a tidal wave or tsunami to sink either the QE2 or the Queen Mary 2. Actually, I have my doubts that those mammoth ocean liners could be sunk by such a force even if they were struck on the side. This is exactly why a transoceanic crossing with a cruise ship would not be one's first choice. <snip>



Actually, unless the ship was close to land or otherwise in shallow water at the time, a tidal wave would not bother it at all. Here's the relevant passage from Wikipedia:

Quote:
....but owing to the enormous wavelength the wave oscillation at any given point takes 20 or 30 minutes to complete a cycle and has an amplitude of only about 1 metre (3.3 ft).[53] This makes tsunamis difficult to detect over deep water, where ships are unable to feel their passage.


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