Train Emergency Brake Activation At 40 MPH
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- Опубліковано 3 бер 2016
- An eastbound Canadian Pacific freight train that was heading through Plymouth, MN, on the Paynesville Subdivision had its emergency brakes activated due to a disconnected air hose. This is something that you don't see everyday, and can be eerie after. After the engineer stopped and went back to fix the air hose, the train continued on its way.
Skip to 2:00 for the application. - Авто та транспорт
The sudden lack of sound when it stops is pretty amazing.
Gotta love freights going in to an emergency
Ear deafening hellish apocalyptic orchestra of metal screaming then suddenly silence
@@atoka2206exactly
Conductor about to have a nice long walk
Had a chat with him once he got to the car. Was a bit of a walk on sloped ballast!
Khang Lu Was he Nice And Polite and Will he Ever come to NJ maybe one time I would speak to him
@@KhangLuRailVideos what was the cause?
@@seldoon_nemar read the description
honestly
Brake binding?
2:02 Classic sign of emergency brakes being applied. That loud whoosh is the sound of the air being dumped which applies the brakes to the train. Train brakes work by reducing air pressure, not increasing. This is because of safety reasons. If the brakes were applied with air pressure, and you couldn’t build up air pressure, then you wouldn’t be able to brake. It’s also important if an air hose is broken or inoperable, like in the case of a knuckle failing. You wouldn’t want for the train to lose its braking in the middle of an emergency and having the load of the train that broke off to continue on without stopping, until inevitably rolling a few miles and hitting someone or something.
Nice fact didn't know that
Thank you sir for bringing facts and taking time to explain some interesting things ^^
It's very similar to air brakes on a tractor and trailer or small truck like fuel oil delivery. You try to drive off in a few oil truck or truck and trailer before the air pressure gets a certain point you're not going to be able to go anywhere cuz the brakes are locked up
Nice, Jesus gives wisdom ✝️ praise God! Repent and believe
Yea I herd a air line bust
Only a train can stop a train. Since that emergency braking the earth is spinning slower.
Yeah, but on the accelaration the earth spins faster, dependet on the direction. So now its fine.
Dei Drec whew. Had me worried there
francobobfred 😂
I can't even imagine how hot those brakes are 😳🔥🔥🔥🔥
Even CJ can't stop the damn train
Thats WERY impressive that train can get a full stop in 40 seconds
Michael Hvidberg That whole “one mile to stop” thing is a bunch of crap.
Cade Ramsey no it is not trust me
VA Railfan it’s a bunch of crap.
@@caderamsey8878 how do you figure?
VA Railfan the emergency Brakes were applied at 2:03, the train came to a complete stop at 2:43. That’s not even a minute. The whole One mile to stop thing is Just propaganda to scare people to not do crazy things around trains.
0:45 amazing doppler effect
2:02 40 mph to 0 mph in 41 sec
So the break sound signifies the trigger of emergency brake?
AJ Deere T680 that's an air hose snapping release a 90 psi amount of air
@@railfangraham4182 freight trains run 90 pounds in the brake pipe
@@railfangraham4182 not necessarily a hose coming undone.
Cubs Fan22 snapping does not mane undone
Love the sound of a train braking all the cars braking the noise and creaking of all the cars.
Brandon Reed yeah i'm hearing train horns even though i live miles and miles away from the nearest track that i know of. either train horns are louder than i though they were or there are tracks closer than i expected
For some reason I always go back to polar express. I can't stop hearing that train brake in the middle of the neighborhood.
yes let's all get tinnitus
@@EldestSauce been having that for about 3 years now
2:00 - Just after you can hear the air dump from the lines. That's the point when it's emergency brakes are applied.
I can see what you mean when you say it is eerie after. It goes from all the normal noise of a train to dead silence.
Must be a real joy to find the faulty connection on a train with THIS length..
Not to speak of checking the brakes after this.
If they do it like we do it in germany he would have to go around the whole train multiple times to do a full check. 🤣
That must be great exercise!
I worked as a switchman for almost 10 years back in the late 70 ' s and late 80 ' s . Each car, hopper, tank, gondola, container, engine has their own pressure tank that is pressurized from the engine air compressor pumps . There is a diaphragm in the middle of the tank, with equal pressure on both sides the brakes are released . So, at full pressure and at 0 pressure on both sides, the brakes are released . Once all of them are pressurized the brakes are released and the train can travel . If the engine wants to apply brakes, they slowly release some of the pressure in the air line and it releases pressure on one side of the diaphragm in all the car air tanks . The pressure on the other side of the diaphragm pushes the brake levers on the cars and applies the breaks as the engineer releases the pressure more and more . When the engineer stops releasing pressure, the pumps pressurize the tanks on all the cars to push the diaphragm back to center and the brakes are released . When a hose disconnects or the engineer ' shoots the air ' - ( quick rapid release of air ) then the sudden drop in pressure triggers all the tanks on all the cars to shoot the air in that tank and you have emergency braking . You can hear the individual tanks shooting one after the other down the line . When the engine of a train disconnects from the train and causes the brakes to shoot on all the cars, those cars will only stay pressurized with brakes applied for a few to several hours because the pressure slowly bleeds off . Hand brakes must be applied to those cars on the downhill end . Also, on each car is a bleed lever ( usually in the middle of the car - sometimes on the end ) . When a crew then wants to move those cars, they either have to connect the air hose and apply air pressure, or someone has to walk the entire distance of that train and bleed every tank on every car and remove the hand brakes .
Pretty much the same thing I told my mom by way of exposition before we watched "Unstoppable" together (except that I also briefly covered the dynamic and the independent)! And yes, this IS how it works -- and the part about the pressure slowly bleeding off was THE reason for the Lac-Megantic wreck!
Actually, surprisingly fast (40 seconds), considering all the fast-moving weight!
And they stopped within just 23 car lengths (if I counted the cars right) -- which is VERY impressive!
Geez, that’s one frickin’ long train!!!
one thing I'm impressed by: as those trains are up to several miles long - that's quite a lot of air in the system - and it takes quite some time for the pressure to equalize to the end after then break valve is operated by the conductor - so the loco and first few cars are already fully breaking while the last car still hasn't applied any breaking force - stresses the breaks of the cars near the loco even more as the whole train is still pushing from behind
@@jordantyler3013yes, but there is still the chance for compression lift off
Braking * but yes your right the front of the train will Brake first then the rest of the train a few seconds later. Which is why sometimes you will hear the bangin of the knuckels as the train compresses together
@@WTC2014 What does this even mean?
But now they have special devices fitted to cars to compensate fer that
That happened maybe 50 years ago but train cars have a brake system that can be compared to ABS in cars, selective braking
That sound at the end was really cool!
Easily over 100 cars too! Impressive!
all that momentum... imagine it was a passenger train, flying coffees !!!
It’s “Let your body hit the floor” time
no its not that noticable.
The train decelerated from 40 MPH to 0 in about 40 seconds. That's 0.046 g of acceleration. Probably not enough enough to make you lose balance if you were standing blindfolded when it happened.
Far more things will fly than just coffees. Perhaps their drinker as well?
The momentum of the whole vehicle doesn't increase that of one coffee.
2:43 My mind was so convinced that it was starting to slowly roll backwards, though visually I felt like it was, I kept looking at that white speck on the wheel of that first PROCOR tanker.
Omg
Wow weeeeird
Yeah that's a pretty common optical illusion, you can get the same effect while watching credits for a long time. If the credits are going in one direction for a long duration and then suddenly the text stops, it may appear as if it's still moving when it's not. The brain makes weird stuff happen that's not really happening sometimes!
It did roll slightly. You hear the brakes squeal again after it stops.The liquid in the tank car sloshed back and fourth when it abruptly stopped. It only moved ever so slightly. When brakes are not applied tanks can keep rocking back and fourth till the liquid settles down.
3 nites ago, I saw a lady struck by a CPRail train travelling at 40mph. It was an accident. She was on her hands and knees looking under a passing train, looking for her friends. She didn't hear the train coming on track 2. PLEASE be aware of your surroundings around train tracks.
Good job, Mr. Westinghouse!
It took the train about 40 seconds to stop which is probably very good as it looked like a heavy train. Figure at 40 mph that is one mile. If it was a 2 man crew the conductor usually is the one to walk back to connect the air hose. Probably a low hanging air hose struck some debris on the track causing the air hose to in- couple. Thanks for sharing.
If it kept going 40 MPH, it would take it 90 seconds to go a mile. Something going 40 MPH will traverse 2,346 feet in 40 seconds. To do a mile in 40 seconds, you'd need to be going 90 MPH.
I counted 24 cars from the moment I heard the air to a complete stop... consider a car length 50 feet (when a railroad worker uses a "car" as a unit of measure, they mean 50 feet), and you get 1200 feet. To be conservative, because some of the cars are obviously longer, and some of them are obviously shorter, I rounded that up to 1500 feet... and then further up to about a third of a mile. This would work out to a very conservative overestimate of average car length, specifically, a third of a mile (1760 feet) divided by 24 is about 73 feet. Obviously, the centerbeams are that long, but not anything else on this train.
Therefore, the train stopped in less than a third of a mile.
EDIT: Actually, we have everything we need to calculate the exact distance; we have the initial speed and the time it took to stop. From these two figures, we conclude it accelerated at -1 MPH/s (-40 MPH in 40 s), yielding a total distance travelled of 1173.33 feet. Hardly a mile... actually less than a quarter mile.
Of course... that's just the time it took after we heard the air dumping. Unless what we hear in the video is the specific hoses coming apart (and it may very well be), we don't know how much time that adds. I'd wager from the moment the hoses actually came apart to the moment the train stopped - including the time it took for the air to dump and give us an aural indication of a brake application - it was probably somewhere between a quarter and a third of a mile.
Pretty much accurate info here. Subtle point ... in this day and age cars tend to be longer so the average car is more like 55' to 60'. Obviously if you're running intermodal or autoracks you figure it differently. And if your train is made up of a large number of cement cars you go smaller. PROX 45563 which is in this train is 59' 4" over drawbar. However, even if you do 50' to keep the math simple and "round up" as you did you're pretty close.
you cannot figure the stopping distance by speed and time - because the speed is slowly decreasing over time .
count the car lengths after the brakes shoot - I counted about 25 cars . That is about a quarter of a mile and for mostly empties that sound about right .
There is a great force behind it. Great catch. Joe
2:42 is super satisfying
Great catch of my favorite CSX GE unit trailing second behind the CP AC4400CW.
Long squeak and then....Silence. If trains made music that was a beautiful ending to its song 🔥
I think freight train emergency brakes would make an excellent instrument for death metal
@@dymaxion3988 Especially for songs about train wrecks!
i'm glad i had headphones on. at the end you can hear a few loud pops. I think that's from one of those tanks. there's probably one that's only half full and it's the sound of slosh! that's really neat! these cars are just big open voids, so that's the sound of the fluid dissipating the remaining energy, and every time it gets to the opposite wall it pings
The echo once the train fully stops is incredible.
the trains next to my house always stops randomly so i get to experience this sound alot
that was quicker than i thought. FYI the engineer is not going back to fix the air hose, that is the conductor.
or maybe the switchman - been there done that
I counted 25 car lengths after the air shot - that is about a quarter of a mile -sounds right for almost all empties .
Something tells me that the Engineer didn't fix anything besides lunch, in the AC, while waiting for the conductor to fix it and walk back to the engine
That's how it usually goes lmao
WoW that is impressive and in good timing!!
The whine of the train tracks as it stopped and echoed through the forest seems almost like an movie
That creaking sound from the breaks, that keeps me up at night. I live right next to a shunting yard. So I just here that and the CUCHUCKUNCUKCUNCHUUUUCK sound, which is calming, but sometimes when a big load is coming in you hear that eeeeeeeek sound, and then you are not calm because its like nails on a chalkboard. Still fun to watch tho.
That was really impressive!
the laws of physics trumps a driver's need to cross the tracks
Not to bad for 40mph must have had a lot of empties
yep - it sounded and looked like empties - I counted 25 car lengths after the air shot - that's about a quarter of a mile and that seems right for empties .
@@kablammy7 And how much longer would it be with a full load?
Very cool to see!
I can't help but think of the episode of Jame's first crash in TTTE when I watch this
More than 100 train cars and rail tankers pulled by the loco. What a tractive effort and braking so to acceleration calculated to run the loco. 🤟🤟🤟
Neat catch!
Epic work....Big like & respect
First car on that train is an ex-MN&S (Minneapolis Northfield & Southern) hopper. Don't see those often.
Not the engineer, THE CONDUCTOR!
not the engineer or the conductor if there is a switchman - been there done that
Very good man. Giant and pretty train.
I liked your channel. Have great videos.
New fan and friend here. Greetings from Brazil 🇧🇷
23 cars passed before it stopped. Maybe it was a light train.
It wasnt going that fast. Imagine if it was going 60 mph
@@francobobfred hes probably doing 40. Musta had a bunch of empties in his train.
Dear Khang Lu,
Thank you for posting this video! Could I please ask you, would there be a way of using this as a sound effect? Many thanks
I've got a picture of the CSX 600 il engine in this train consist from 2000 in NYC with Twin Towers in the background!!!
impressive, considering how much weight is involved.
23 1/2 car lengths to stop, accounting for the variables in car length and using the railroad average of 50 feet to a car length, it stopped in 1175 feet. Not too shabby all things considered
right!
Top video greetings from luxemburg europ
Greetings from Minnesota!
Thank you
They have to add Railhead miles behind the train because the braking wheels pull the rail forward. This was probably about 100' of rail.
Nice! When was this?
+Jordan W During the summer of 2014.
Khang Lu was it on fire I saw smoke on the train engine the main train
Turtel mcguire smoke is normal most of the time it's a diesel engine
@@turtelmcguire4457 its not fire its clag from the engine
George Westinghouse would be proud.
It did pretty well for a train that long
The trains breaking sounds like my sleep paralysis 2:28
Y e a h
The place is similar to our country Indonesia. Greetings from Indonesia.
Greetings! I do like looking at Indonesian railroads. Good looking EMD power.
The quiet after the train stops is kind of eerie
Amazing
Nice braking power
Crude oil in lumber it does weigh a lot it changes the earth rotation?
I'm actually surprised at how quick it stopped!
empty
why so surprised. Brakes are present in all cars. Even if train was made to be a circle around earth, it would still take the same time as if it was a shorter train. Loaded train would take nearly same time to stop IF the wheels would lock up or if brakes would be strong enough to apply more power. You'd be surprised how quick semi trucks can stop on nice warm and dry road, source: truck driver.
@@evgenywow Actually, the longer the train, the longer it takes to stop because the longer the train, the longer the delay before air pressure drops throughout the whole system. Longer train = larger volume of air, but the air has to pass through the same size hose so it takes longer for that larger volume to vent. Also, that actually was a quick stop. A train-full of heavily loaded cars tends to slow much more gradually. These brakes are crude, and the fact that wheels aren't skidding with empty cars (in this case, based on all the brake noise instead of "clean" steel-on-steel sound) means that that there COULD be much stronger brake action applied if the cars were heavy (and still avoid wheel skidding), but there's no provision for that. Thus, the heavy train would have less of its potentially useful braking force available for application and it would coast farther. Final example to illustrate that this WAS a short stopping time distance: It's common knowledge that a heavy train can take a mile to stop at moderately high speed on level track, and there are UA-cam videos showing this (approximately, at least). This one took about 40 seconds to stop, starting at 40 mph (according to the poster of the video). That means that even if it had not even slowed down, it would have gone only 0.44 miles during that 40 seconds. The fact that it was slowing down during that whole 40 seconds means that it stopped in far less distance than that. Of course, complicating things is the whole issue of whether this was uphill or downhill, but we don't know the situation there.
@@ericl2969 actually, during an emergency application, the brake pipe is vented at each car, speeding the application throughout the train.
@@raylrodr Really! It would be interesting to know how this is accomplished, with no control over the brakes on each car except via that single air line running the length of the train. I can't imagine how triggering an additional valve on each car would be accomplished, but the workings of train air brakes is something I've been wanting to learn more about, so I'll remember to check up on this.
Emergency Brakes: Brakes at the front | therefore, FLYING ESSENTIALS!
There are brakes on all axles.
I can feel the brakes grinding through my phone 😳😳😳😳
I've always heard these sounds living next to a railroad in my back yard growing up but never knew what the cause was for these sounds. Even today I can still sleep by a passing train. I guess this is also how NYC people are able to sleep through so many sirens and noises at night?? 😜
CSX needs a new paint job for that locomotive
VA Railfan yes it really dose
VA Railfan it’s Canadian Pacific
The second is csx.
You gonna pay for it?
@@rickvia8435 😂😂😂😂😂
Okay I had to come check, so these strange noises being heard worldwide are definitely NOT train brakes lol
WOW GOOD EMERGENCY BRAKES!
You know why
When a train connects to other trains its gets more power
it*
That is intense
Nice horn sound
A train going that fast takes over a mile to stop.
WHO IN THE BLAZES APPLIED THAT EMERGENCY BRAKE?!?
Broken hose = automatic application!
Nice video es44ac
That's got to be like trying to stop your pickup truck on an iced over pond.
Bobby Bacala approves this
I haven't ever seen such a big train.
Only train ive ever seen with 0 graffiti 😂
America, you really don't do things in half! Haha freight trains In the UK (the most I counted) was only about 20
Really, we do them in doubles. The big railroads like to combine multiple trains
Beautiful horn, I forget what kind.
I still get a tear in my eye when I hear an old train in the night!
The fun starts at 2:05. You're welcome.
jeder container erzählt eine Geschichte. Es sieht so aus als ob alles einen Sinn hätte. Gute Technologie. Das ist was die Leute fasziniert daran.
that s how could build a beat.
Yep. That was a full emergency stop. Train must be inspected to see why.
once they stop - the air pumps on the engine will try to restore pressure in the train air line - someone walking the train will be able to hear where the air is leaking out .
@@kablammy7 This is pretty incorrect. Sending their air while the train is in emergency will just cause it to be dumped out of the first few cars since the triple valves can take up to 90 seconds to recover. The conductor has eyeballs, so he uses those.
@@pootispiker2866
Ok, thanks for that information .
what is in those tanks 🤔 or could be empty
Marshalling loads behind empties, what a time it would be
OmG how long it is
He did pretty good ... stopped fairly quickly I thought
I worked as a switchman for almost 10 years back in the late 70 ' s and late 80 ' s . Each car, hopper, tank, gondola, container, engine has their own pressure tank that is pressurized from the engine air compressor pumps . There is a diaphragm in the middle of the tank, with equal pressure on both sides the brakes are released . So, at full pressure and at 0 pressure on both sides, the brakes are released . Once all of them are pressurized the brakes are released and the train can travel . If the engine wants to apply brakes, they slowly release some of the pressure in the air line and it releases pressure on one side of the diaphragm in all the car air tanks . The pressure on the other side of the diaphragm pushes the brake levers on the cars and applies the breaks as the engineer releases the pressure more and more . When the engineer stops releasing pressure, the pumps pressurize the tanks on all the cars to push the diaphragm back to center and the brakes are released . When a hose disconnects or the engineer ' shoots the air ' - ( quick rapid release of air ) then the sudden drop in pressure triggers all the tanks on all the cars to shoot the air in that tank and you have emergency braking . You can hear the individual tanks shooting one after the other down the line . When the engine of a train disconnects from the train and causes the brakes to shoot on all the cars, those cars will only stay pressurized with brakes applied for a few to several hours because the pressure slowly bleeds off . Hand brakes must be applied to those cars on the downhill end . Also, on each car is a bleed lever ( usually in the middle of the car - sometimes on the end ) . When a crew then wants to move those cars, they either have to connect the air hose and apply air pressure, or someone has to walk the entire distance of that train and bleed every tank on every car and remove the hand brakes .
I feel like if you have more than 10 carts you brake faster than 5
Y did it go into e braking
Christ on a pogostick, how long is that train?!
He was just brake-checking the train that follows him
I need more cow Bell!
I could have swore I saw you in another comments section
how the engineer could find the actual position of disconnected air hose?
They probably had to walk the entire length of the train to make sure the brake line was connected all the way. As such, they just check in between each car.
@@nasanierulastname2997 That is correct. The hose happened to be between two cars on the crossing, so he didn't have to work on ballast.
CONDR, not ENGR.
Break Applied at 2:01 Stopped at 2:44 ( At 2:01 can hear Air Pressure Release Noise)
Damn that's a shit ton of methylamine
You know why it went into emergency? Broken knuckle? Broken air hose or what?
Broken air hose
Does the emergency braking also put engines to idle? Or does the conductor realize the brakes are activated and he puts them to idle himself?
Yes the engines go to idle. Unless he's already on dynamic braking. Those should continue to work on most locomotives during an emergency brake app.
In North America this is always the case, but some places like the UK have the driver do this manually.
Mr white go go go
Wht is this engine type
over 100 containers
STTTTTOOOOOOOOOOOOOOOPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!
JESUS THAT WAS INTENSE HOLY CRAP BRO WHAT THE FIRCK YOU FCRNACNY MAN