Oil Trains

[sd70accsxt700]

heavy train with liquid sloshing around back and forth that requires 3 big AC units to control. That is just a broken knuckle waiting to happen, 2 up front and one at the rear make that less of an issue. CSX won't allow more than 2 AC units on the point of a train on the Garrett and Willard subs except for the oil trains which both received "special dispensation" It's right there in the timetable.

Considering there is "SOME" truth here, your 3/4 WRONG.

[MagnumForce]

Do tell, Matty

[cbehr91]

Considering there is "SOME" truth here, your 3/4 WRONG.

AND HERE'S WHY.

[sd70accsxt700]

Do tell, Matty

AND HERE'S WHY.

#1 Now if I did that, that would be I am back to posting on this board, and that will never happen until peoples attudes chage, as I swore I wont post until then. And #2 I am pretty sure I know what I am doing, you just need to know that I am right and Magnum is wrong.

[BerkshireKid]

sd70accsxt700 23,657,876 Stupid "know it all foamers" 0
*Grabs popcorn to sit and watch*

[Typhoon]

It isn't just a long heavy train, it is a long, heavy train with liquid sloshing around back and forth that requires 3 big AC units to control.

If that was true DM&E ethanol trains, powered by junk DM&E SD40s, would be in real trouble.

[sd70accsxt700]

Typhoon +1,000,000, and he dosent even run the trains.

[Typhoon]

I just stop them....

[StupidFlee​t]

#1 Now if I did that, that would be I am back to posting on this board, and that will never happen until peoples attudes chage, as I swore I wont post until then. And #2 I am pretty sure I know what I am doing, you just need to know that I am right and Magnum is wrong.

So basically you will never post here again?

[JoJames]

I just stop them....

And so do I.

[Typhoon]

I just stop them....

And so do I.

You guys did a good job of slowing everything down Tuesday night...

[bctrainfan]

Curious about the restrictions mentioned as to normally limiting trains to only 2 AC units. Does this only apply to AC units? So you could run say 3 SD70M's, but only 2 SD70ACe's? Why is that?

[hoborich]

That was a good point about the ethanol trains not having DPUs. And if a tank car is full, there shouldn't be any sloshing around. Unless it was filled by weight, and not totally full. I do think ethanol would slosh more than crude oil. Just curious. Are the crude oil trains longer or heavier than ethanol trains?

[JoJames]

I just stop them....

And so do I.

You guys did a good job of slowing everything down Tuesday night...

Yes. We did. Ten years a go are boss has 22 people working under him we are now down to 15. This may have something to do with it.

[AARR]

That was a good point about the ethanol trains not having DPUs. And if a tank car is full, there shouldn't be any sloshing around. Unless it was filled by weight, and not totally full. I do think ethanol would slosh more than crude oil. Just curious. Are the crude oil trains longer or heavier than ethanol trains?

I was curious about the same thing. I have read back in the 1940's that liquids sloshing around tank cars could pose a real problem. But with modern technology I was wondering if the tank cars are filled enough where internal movement is no longer a problem

[Norm]

I have to take sides in this debate, and I'm on the side of those who do it for a living and have concrete information on what they speak of. I try to learn from my contacts and those who are in the know. Speculation and ill informed opinions don't cut it.

[Norm]

I was curious about the same thing. I have read back in the 1940's that liquids sloshing around tank cars could pose a real problem. But with modern technology I was wondering if the tank cars are filled enough where internal movement is no longer a problem

Don,

Don't know for certain, but I would think the tanks would have internal baffles to help prevent sloshing.

[sd70accsxt700]

#1 Now if I did that, that would be I am back to posting on this board, and that will never happen until peoples attudes chage, as I swore I wont post until then. And #2 I am pretty sure I know what I am doing, you just need to know that I am right and Magnum is wrong.

So basically you will never post here again?

If you notice about the only thing I post any more is WRONG, so yes. Other then this explnation. No jokes I know what your going to say next. LOL

[SD80MAC]

Tank cars can and do slosh. I remember riding Marquettes Z train a few years ago, we had 6 or 7 loaded tanks on the rear of a roughly 50 car train. I remember the engineer saying "you feel that? thats those tank cars on the rear". You could feel them sloshing through the slack action, and that was only a few cars, can't imagine what a full train of tanks is like.

[Typhoon]

Curious about the restrictions mentioned as to normally limiting trains to only 2 AC units. Does this only apply to AC units? So you could run say 3 SD70M's, but only 2 SD70ACe's? Why is that?

Yes.


To limit draft forces, the maximum trailing tonnage for a train handled with only head-end power will be restricted as follows:
1. For loaded unit trains (coal, grain, potash, etc.) the maximum tonnage will not exceed the tonnage determined by the tonnage rating for two (2) AC4400 and one (1) C40-8 or CW40-8 locomotives.
2. For other trains, (Trains not qualifying as unit trains), the maximum tonnage will not exceed the tonnage determined by the tonnage rating for three (3) C40-8 or CW40-8 locomotives.
On grades where this tonnage limitation will be exceeded, trains will have a rear-end helper or appropriately positioned in-train helper, or the trailing tonnage must be reduced.
3. The number of powered axles in use must not exceed:
• 24—for the operating locomotives that are pulling a train or cut of cars.
• 15—when all operating locomotives are shoving a train or cut of cars totaling more than 50 cars, and every locomotive in the consist and within twenty cars of the consist are equipped with alignment control devices. If any locomotive in the consist or within twenty cars of consist is not equipped with alignment control devices, comply with Paragraph B(1) below.
• 12—on a helper locomotive when the helper locomotive is shoving a train.

When calculating powered axles, count AC locomotives as 9 axles.
When a reduction of powered axles is necessary, isolate locomotives from the rear of the consist forward.
4. ABTH rule is modified for Express Train Service only.
ABTH rule is modified for Express Trains Q090 and Q091 only, to enable the locomotive operator to use 3CW44AC locomotives or 27 powered axles.