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Why do coil cars have side skirting?

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Why do coil cars have side skirting?
Posted by Ulrich on Monday, July 3, 2017 7:14 AM

My son and I were out train watching the other day, and he was asking why coil cars have side skirting.. trapazoid shaped... while no other cars have it. Any ideas? 

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Posted by tree68 on Monday, July 3, 2017 7:23 AM

That's not "skirting," that's part of the structure of the car.

Rather like a truss, but solid metal.  

Just like a depressed center flat, there has to be room under the car at the ends for the trucks.

When I did a search to see what you were talking about, I did find images of coil cars without the "skirting."  I would imagine they had a fairly heavy frame instead.

It goes without saying that coils are quite heavy.  When I've been in Deshler, it's been easy to tell which coil cars are loaded - their squeal as they go around the transfer (usually the SW transfer) is constant, while lighter cars may sway a bit, changing the sound of the wheels slipping (which is what the squeal is).

LarryWhistling
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Posted by Ulrich on Monday, July 3, 2017 7:31 AM

Thanks Larry.. that must be it.. the skirting looks quite robust..

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Posted by samfp1943 on Monday, July 3, 2017 8:51 AM

tree68

That's not "skirting," that's part of the structure of the car.

Rather like a truss, but solid metal.  

Just like a depressed center flat, there has to be room under the car at the ends for the trucks.

When I did a search to see what you were talking about, I did find images of coil cars without the "skirting."  I would imagine they had a fairly heavy frame instead.

It goes without saying that coils are quite heavy.  When I've been in Deshler, it's been easy to tell which coil cars are loaded - their squeal as they go around the transfer (usually the SW transfer) is constant, while lighter cars may sway a bit, changing the sound of the wheels slipping (which is what the squeal is).

 

    To add a bit to what tree68,Larry said:  Coil steel comes in many diameters, and of course, weights.      It makes sense that the structure of those cars would rely on heavy side frames; rather than a single, heavy, center frame. 

   An advantage, needed to increase the available depth in the center structure of the car. (Necessary, when a very large diameter coil is placed in the car), and the coil covers replaced on the car.

  Coil Steel is usually loaded, in a coil car, or on a flatbed truck, with its 'eye' on the centerline of the vehicle.  The 'wells' in those cars generally preclude loading coils any other way.  Coils shipped on their 'side', on pallets, ('eyes' vertical, for transport, require dunnage, and several chains), they generally, are loaded in boxcars.

          Coils loaded in a fashion where their 'eyes', are to the sides, are generally, referred to as 'suicide' loading.( Calls for use of coil racks, dunnage and chains, as required.)  

 

 


 

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Posted by tree68 on Monday, July 3, 2017 2:35 PM

samfp1943
Coils loaded in a fashion where their 'eyes', are to the sides, are generally, referred to as 'suicide' loading.

I unfortunately saw the aftermath of such a loading some years ago along the "401" near Toronto.  A roll had somehow gotten loose and rolled into the cab of a truck following (perhaps a rear-ender collision).  I have my doubts that the driver of the second rig survived - there wasn't much left of the cab.

I have no idea of the exact circumstances - we were eastbound in the resulting rubbernecker traffic - the involved vehicles were westbound.

LarryWhistling
Resident Microferroequinologist (at least at my house) 
Everyone goes home; Safety begins with you
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Come ride the rails with me!
There's one thing about humility - the moment you think you've got it, you've lost it...

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Posted by Ulrich on Monday, July 3, 2017 3:49 PM

I've hauled coils eye to the side.. the neat thing is they won't come off if they're secured properly. I hate it when people refer to the eye to the side as loaded "suicide".. I had a customer who once told me "load em suicide".. I gave her s**t over it. I prefer eye to the side over eye to the rear..

 

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Posted by Backshop on Monday, July 3, 2017 6:16 PM

Yeah, I was taught to have an extra chain pulling to the rear in case something happened.

RME
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Posted by RME on Monday, July 3, 2017 6:16 PM

Ulrich
I prefer eye to the side over eye to the rear..

I think a great many women would agree with you. Smile

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Posted by Miningman on Monday, July 3, 2017 6:22 PM

Whoa! Yikes! Yolks! Hope you don't see Ulrich in your rear view mirror. 

It's hilarious though. 

Glorious 4th to you. 

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Posted by CShaveRR on Monday, July 3, 2017 7:09 PM

Back to the question at hand:  you call 'em "skirting", I call 'em "Fishbelly sides" (assuming we're talking about the same thing).  The only builder who makes them that way is the National Steel Car Corporation (plant in Hamilton, Ontario).  I've not seen any attempts to duplicate them, but they seem to have taken the industry by storm when they were introduced in the late '90s.  As far as I know, these cars all have only one coil cover (many coil cars built in the preceding 30 years were longer and equipped with two).

Again, as far as I know, these cars have a single trough, which means they're loaded eye-forward.  Smaller-diameter coils mean less loading efficiency, but there are other coil cars available for those.

(An aside:  eye-forward isn't always safe, either, if the driver decides to cross in front of a train, as happened on the SouthShore [NICTD] in Burns Harbor a few years back...a coil entered the lead car with deadly results.)

Carl

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CAACSCOCOM--I don't want to behave improperly, so I just won't behave at all. (SM)

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Posted by Ulrich on Monday, July 3, 2017 7:19 PM

That makes sense.. the sides are more robust than the word "skirts" would suggest.. 

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Posted by Electroliner 1935 on Tuesday, July 4, 2017 12:13 AM

This what you are referring to?

Coil product image

     https://www.steelcar.com/products/coil

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Posted by Ulrich on Tuesday, July 4, 2017 6:28 AM

That's it.. 

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Posted by mudchicken on Wednesday, July 5, 2017 5:37 PM

Santa Fe had a few with the skirt "bent under" as protection against fork lifts stabbing the cars from the side and ruining triple valves, reservoirs and piping. I imagine they are gone along with the forklift operators doing their positioning by braille with white forks. (oh, the bad old days on the Vernon Team track in LABlindfold)

Mudchicken Nothing is worth taking the risk of losing a life over. Come home tonight in the same condition that you left home this morning in. Safety begins with ME.... cinscocom-west

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