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Superliner Stability

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Posted by charlie hebdo on Tuesday, August 2, 2022 11:24 AM

BEAUSABRE

About the only quick fixes I can think of are to install seatbelts and seat back airbags and enforce the rules of remaining buckled up and no unnecessary walking about (potty breaks only). Refreshments will be delivered to your seat when a member of the crew passes by with the cart (you preselect meals either with your reservations or from a list the staff member takes down - just like an airliner. You buy drinks off the cart.The old dining car would become a kitchen-coach). Which would be bandaids (and may not be either practical or pass legal liability muster) and also destroy some of the ambiance ATK is trying to sell. "You can get up and walk around"

 

You offered your own opinion/assertion with no references which is correct. Get it?

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Posted by Overmod on Wednesday, August 3, 2022 8:48 AM

I confess that I would like to see citations that Superliners are unsafe in roll above 50mph -- but I don't demand them.

charlie hebdo stated in absolute language that they were unstable above that speed, and I'd like to know if he has read any references that establish that speed.  I would find it hard to believe that all the people involved in developing the high-level Amtrak equipment were wrong about the practical safety of the equipment, but it would be far from the first time that common engineering knowledge turns out to have been misapplied.


I confess to still not 'believing' that the Waggon Union trucks provide the same roll stability as the GSC90 design... and that neither of them, as provided, 'go as far as they should' in providing roll stability.  That is an utter and complete opinion and should be treated as such.

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Posted by charlie hebdo on Wednesday, August 3, 2022 9:52 AM

Overmod
charlie hebdo stated in absolute language that they were unstable above that speed

Oh ok, from now on I (and you and all other posters) need to state "IMO" in their posts.  Since I have clearly stated I am not any type of engineer (or industrial designer, to be clear) it seemed obvious, especially when you and several others frequently make assertions beyond your areas of expertise.

OM: Here is a interesting research study looking at many passenger derailments worldwide. I note that Superliner cars seem to turn over in several.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://citeseerx.ist.psu.edu/viewdoc/download%3Fdoi%3D10.1.1.817.475%26rep%3Drep1%26type%3Dpdf&ved=2ahUKEwidk8iw9qr5AhX7GTQIHctUC7AQFnoECAgQAQ&usg=AOvVaw0ih10j_tT0hui7vP0EjMaS

 

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Posted by BaltACD on Wednesday, August 3, 2022 3:05 PM

charlie hebdo
 
Overmod
charlie hebdo stated in absolute language that they were unstable above that speed 

Oh ok, from now on I (and you and all other posters) need to state "IMO" in their posts.  Since I have clearly stated I am not any type of engineer (or industrial designer, to be clear) it seemed obvious, especially when you and several others frequently make assertions beyond your areas of expertise.

OM: Here is a interesting research study looking at many passenger derailments worldwide. I note that Superliner cars seem to turn over in several.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://citeseerx.ist.psu.edu/viewdoc/download%3Fdoi%3D10.1.1.817.475%26rep%3Drep1%26type%3Dpdf&ved=2ahUKEwidk8iw9qr5AhX7GTQIHctUC7AQFnoECAgQAQ&usg=AOvVaw0ih10j_tT0hui7vP0EjMaS

charlie - are you Ralph Nader of 'Unsafe at Any Speed' fame?

Never too old to have a happy childhood!

              

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Posted by blue streak 1 on Wednesday, August 3, 2022 3:13 PM

All these claims of instabiliy.  Has amtrak installed a device that will measure how stable the cars are?  Just speculation in this thread until some kind of testing is actually done. .

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Posted by CMStPnP on Saturday, August 6, 2022 8:14 PM

BaltACD
charlie - are you Ralph Nader of 'Unsafe at Any Speed' fame?

Herr Balt.....Vorsicht.....Das ist der Krampus.DevilBig Smile

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Posted by charlie hebdo on Sunday, August 7, 2022 1:55 PM

CMStPnP

 

 
BaltACD
charlie - are you Ralph Nader of 'Unsafe at Any Speed' fame?

 

Herr Balt.....Vorsicht.....Das ist der Krampus.DevilBig Smile

 

Boys, boys. Time to pick up your toys.

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