Yeah

Seems to be happening a lot lately. Like the vid tho!

I found it in my recommendations

Because that's how KZfaq works.

@@theeagleeye9175 7⅞a

You are the first person i scrolled down to that got it right, and,ill stop commenting with others about this. Those GP38's are well over 40 years old and as our master mechanic told me on several occasions, the wheel slip modules on these older units fail and we have no replacement in the shop. Were lucky if we ever can find them.

@@BossSpringsteen69 The worst part is the wheels are getting burnt and cut while spinning so much. They will need changed out sooner and that is a large expense. The potential for a fire starting in some grease and oil buildup could cost the unit, if not more. Fun to watch, but not to pay for!

EMD still made replacement modules for them up until at least a couple of years ago. Not sure if they are pricey or not though. I would imagine they are.

@@BossSpringsteen69 Why don't they replace them with a modern traction control system like Brightstar or similar? Surely it would be more economic to do that than allow a loco to be spinning up like this because a) it's damaging the wheel sets and the track, and b) it's not assisting the lead loco when it's just spinning so it's not pulling its weight (pun intended).

The protection against this kind of slip, a synchronous slip, isn't present on dash 2 equipped GP locomotives because they don't use motor transition. On an SD38 and other DC, the locomotive's control system automatically changes from series-parallel to parallel for high speed operation. This changeover cuts alternator output and takes several seconds for the load to be reapplied,allowing for the wheels to stop slipping before the locomotive immediately makes backward transition. On a geep the motors are permanently wired in parallel while motoring, so this did not happen. As far as the IDAC (instantaneous detection and correction of wheel slip) or whatever replacement board was concerned, no slip was occurring at all. When the dash 2 wheel slip board fails, a second system controlled by the wheel slip relay takes over, though this is not as quick to respond since that relay, among other things, makes the load regulator start reducing excitation. IDAC would be more rapid, using the SCR for the traction generator to limit output. If that too fails, this kind of thing can happen

It is the anti-slip system basically taking the day off. Seems to happen from time to time.

friction welding :)

Lol

@@epicrails5487 Put "_" right before and after the sentence you want to italicize (no punctuations). Also for bold, put "*" before and after.

@@epicrails5487 Lol no problem.

_Does this work?_

_:O_

@@DJdoppIer _does it works_ *yeah ofcourse it worked*

Note that the lead unit isn't doing this, only the rear one. I would imagine the driver has no idea that the rear unit is doing this, only that the train isn't accelerating like it ought to be.

These engines are very old and the wheel slip modules fail and the wheel slip modules are hard to come by nowadays. All the engineer can do is keep modulating the throttle and, as long as there is momentum and speed is increasing it's ok. Sometimes we don't have the option of adding an extra locomotive. It takes a certain finesse coupled with experience to do this right.

@@quillmaurer6563 They know, they might not have had any other option but to take the train with the cars. If yo can get the momentum to keep increasing it's ok sometimes. Sometimes we tell our managers what we think about our trains projected performance based on our experience but, management over rules our suggestions sometimes. All we can do is sit back and keep working. Case in point my train left the yard with two locomotives but only one was working. We told our manager that we needed another unit just in case. This manager based is decision on the cars scheduled to our train for pickup. When we got to the CN yard we had more cars for our train than scheduled because we left so late from our yard that other cars from another train made it to our train because we were so late arriving at our pickup yard. Had we left our yard earlier we would have dropped our cars off at the CN yard and get the original scheduled cars and left, and, we would have missed the connection with the additional cars from the other train.. The CN yardmaster was none to happy to hear that we had to leave those cars because we were under powered.

@@quillmaurer6563 - Dunno. Operators are supposed to keep an eye on their rear view mirrors.

@@andreweppink4498 Granted I'm not a train driver, but I'd still doubt you'd be able to see the sparks from inside a locomotive ahead. Certainly can't see the wheels from on board the train.

Not

Aint so little

Forgot to take the emergency brakes off.

Certainly looks like engineer's brain was not synchronized...

TC in the rear loco is faulty causing wheel slip

@ankit bisht thought so with the fuel tanks underneath was surprised

I have lived in Durand for the last 30 years. It is beautiful all year long. You should see it during winter when the trees are covered in snow

We did that at a local flour mill once in eastern PA. One of the GP40-2's kept shutting down due to low coolant. The other had enough tractive effort to get the train there, but not enough to shove the loaded grain cars up the steep grade past the unloading silos. Had to have the brakeman stay on the walkway of the faulty loco and force it to run. Oh yeah and we had two local kids aboard too. Fun day :D

Yep. "P80 with Extreme Wheel Slip Grinds the Rails" And comments got locked on that video due to excessive of idiotic comments from armchair engineers and non-railfans claiming to know everything about railroading.

@@Roon3808 2 local kids on board, that sounds totally legal! Im sure Osha would have been totally cool with it! Lol

The woman engineer one...... SMH 🙄😵

@@electric7487 How are you going to know what you should have done, or could have done if armchair commenters don't tell em they are doing everything wrong ?

This manages to be 50% "absolutely hilarious" and 50% "not funny in any respect whatsoever" at the same time.

Failed wheel slip modules and the crew might have had no other choice but to take the entire train. In all my years of railroad experience, it's quite possible the crew told management but, management ordered them to take the entire train or told them, " see if you can get it moving".

Look again. It's a Railbox boxcar. The door is black and those "sacks" are graffiti.

LOL

@BL - 04SA - Millers Grove PS (1566) your missing the point!!

No, this isn't the train to Hell. THIS IS: kzfaq.info/get/bejne/bs2ie9OCpqiVmnU.html

"Once the momentum is gained the rear locomotive can turn itself off." Sorry but that's total nonsense.

Im sure the rail was trashed. Loco wheels were probably a wee bit under spec too LOL

@Daniel C. Since it's only the second Loco that is spinning i would say the anti slip failed on the second loco

The traction control on the second engine was broken, so there was no restriction on the current flowing to the traction motors.

or no sand in the sand boxes haha we get that fault sometimes. sanders get blocked all the time aswell

@@eightfivezerobraxton5509 never thought of that before. That would suck!

They were 100% deliberately jamming on the throttle.

Thanks, thought so too. It's kind of a perfect Horsepower vs Torque demonstration !

There's only one engineer, in the lead locomotive. The second is controlled by commands from cables connected between the locomotives.

Traction control is not working on the second unit.

Was just being a dickhead. Wanted the video for KZfaq using his mate as videographer. That's ok sometimes but destroying railway and wheels for views????? I'm sure he could have feathered that in if he'd wanted to

Do wheelslip alarms go off for other locos in the consist? My guess is that as the lead unit wasn't slipping the driver had no idea the rear unit had gone full-Loram. Probably only knew that the train wasn't accelerating like it should have been at that power setting.

@@quillmaurer6563 In earlier set-ups they wouldn't have but in modern set-ups the driver would get alarms in the lead loco

@@brianmillar5075 Ah, makes sense - these locos are fairly old so likely not in these. Though I'd also expect more modern locos to be able to not only warn about wheel slip but control/prevent it.

@@quillmaurer6563 You also need to keep in mind any decent driver would be aware of the pulling power of the locos and would notice fairly quickly if they weren't pulling like they should as a result of wheelslip.

yeah, he fucked that track up bad now...definitely will need to be repaired...along with the 2nd units malfunctioned traction slip detector....not good

That's what I was thinking.

Destroys the tracks too

I've seen the rail get damaged quicker than the track in these cases.

There must be at least one car between flammable materials and the locomotives; four if there are enough cars in the train to do that.