Monorails Pink & Purple Removed from TTC

...if you lose air pressure you could just coast to a stop and then the tractor pulls you.

I don't think it works that way. If the Monorails have a standard air braking system, then the air pressure keeps the brake pads OFF the rotors -- in other words, when you want to stop to release air pressure to brake. The same system is on commercial trucks and busses. Of course I'm not expert, but it seems plausible that the trains have a similar system on them. :D
 

hardcard

New Member
Mark IV's would not work on the current system.. It's not EXACTLY like an electric train set, in that you could 'plop and drop' different generations of trains.. there are platform considerations, etc..


Meanwhile, I don't doubt that the 'good' head car of purple with debut on pink, and the entire train will likely be restriped to match... Will it still be pink? who knows..


The trains were moved monday night/tuesday morning... They are both in the shop.
 

EPCOT Explorer

New Member
Mark IV's would not work on the current system.. It's not EXACTLY like an electric train set, in that you could 'plop and drop' different generations of trains.. there are platform considerations, etc..


Meanwhile, I don't doubt that the 'good' head car of purple with debut on pink, and the entire train will likely be restriped to match... Will it still be pink? who knows..


The trains were moved monday night/tuesday morning... They are both in the shop.
Do you know if they are working on them?
 

hardcard

New Member
Do you know if they are working on them?



no.. I don't... but building a new train from the parts would not be difficult.. Interesting thought here though... From what I understand, most of the damage was on the fiberglass shelling, and structure, rather than the chassis...... do they still have the fiberglass molds to make new parts? I have no idea.. If not.. It's going to take a while to re-engineering the molds..


EVERY time I go to WDW I pass the monorail shop.. IF there is anything interesting to be seen, I'll take a pic.. I'm betting most of the work will be done within the shop doors under a 'shroud' of secrecy ....
 

EPCOT Explorer

New Member
no.. I don't... but building a new train from the parts would not be difficult.. Interesting thought here though... From what I understand, most of the damage was on the fiberglass shelling, and structure, rather than the chassis...... do they still have the fiberglass molds to make new parts? I have no idea.. If not.. It's going to take a while to re-engineering the molds..


EVERY time I go to WDW I pass the monorail shop.. IF there is anything interesting to be seen, I'll take a pic.. I'm betting most of the work will be done within the shop doors under a 'shroud' of secrecy ....
Interesting...Thanks for the update.
 

kashmir

Active Member
Mark IV's would not work on the current system.. It's not EXACTLY like an electric train set, in that you could 'plop and drop' different generations of trains.. there are platform considerations, etc..


Meanwhile, I don't doubt that the 'good' head car of purple with debut on pink, and the entire train will likely be restriped to match... Will it still be pink? who knows..


Is it weird to think that if they create a new color it would have the number 13 attached to it?:(
 

officeboy

Active Member
I don't think it works that way. If the Monorails have a standard air braking system, then the air pressure keeps the brake pads OFF the rotors -- in other words, when you want to stop to release air pressure to brake. The same system is on commercial trucks and busses. Of course I'm not expert, but it seems plausible that the trains have a similar system on them. :D

I agree that it would make sense for them to use the more standard braking system as you find on trains and such.

Preface: I have no first hand knowledge in this instance. I am simply regurgitating something from a trusted source.

It is my understanding the air brake portion of the brakes are non standard in that they are not automatic brakes as on trains or buses. Rather they use 'straight air'. IE air pressure is modulated against the friction devices for different braking applications. The events as I understand them is that in the collision the air brakes were disabled. Part of the air brake system runs to the ends of Cab1/6 and thus in the collision these lines were compromised.

One theory I heard was that the small hill on the south side of TTC, where contact occurred, may have let the trains coast down into TTC. With no air brakes this begins to make sense considering where it appears the trains stopped.

Facts, true? I dunno.
 
I agree that it would make sense for them to use the more standard braking system as you find on trains and such.

Preface: I have no first hand knowledge in this instance. I am simply regurgitating something from a trusted source.

It is my understanding the air brake portion of the brakes are non standard in that they are not automatic brakes as on trains or buses. Rather they use 'straight air'. IE air pressure is modulated against the friction devices for different braking applications. The events as I understand them is that in the collision the air brakes were disabled. Part of the air brake system runs to the ends of Cab1/6 and thus in the collision these lines were compromised.

One theory I heard was that the small hill on the south side of TTC, where contact occurred, may have let the trains coast down into TTC. With no air brakes this begins to make sense considering where it appears the trains stopped.

Facts, true? I dunno.

You know, I never thought about it in that context -- it does make sense though... :D
 

GrumpyFan

Well-Known Member
Do you know if they are working on them?

I would venture to guess no. I would guess that the investigators are in the process of methodically tearing apart the trains to check for any technical issues. NTSB is notoriously slow at these investigations, for a good reason though, they're extremely thorough in their investigations meaning they inspect EVERYTHING. So, until the physical part of the investigations are completed, Disney will not be allowed to rebuild them.
 

montyz81

Well-Known Member
Some thoughts

The Mark IV's are all long gone. I had heard that most of the trains were destroyed. From my understanding the only ones that exist are the front cab of Mark IV Red and two Mark IV trains originally used on the Las Vegas system. Those trains were in a yard littered with graphiti and damage a few years ago.
OldMonorailG-stroup.jpg


Also, others are right, the platforms were all widened for the Mark VI trains as it is much bigger then IV.
Mk_IV_Mk_VI_Models1.jpg


Hopefully this will encourage WDW to build new remakes of the Mark VIs into Mark VIII.
 

hokielutz

Well-Known Member
Yeah I know,it truely does. He tried going in reverse but couldn't get out of the way quick enough. Too bad they havn't put E-Stop buttons in the cabs that cut power to the whole line...if they don't have them already.


I believe that someone earlier said these trains do not stop on a dime. So even if pink was going its full 15 mph, just cutting the power will not stop the momentum of the heavy train from colliding with a stopped, or slowly reversing purple (according to the latest from the NTSB). Take freight trains and how long it takes them to stop.
I doubt the brakes on the monorail wheels were engineered to lock-up for quick stops. Doesn't quite work the same as an omnimover ride system's e-stop.
 

EPCOT Explorer

New Member
I would venture to guess no. I would guess that the investigators are in the process of methodically tearing apart the trains to check for any technical issues. NTSB is notoriously slow at these investigations, for a good reason though, they're extremely thorough in their investigations meaning they inspect EVERYTHING. So, until the physical part of the investigations are completed, Disney will not be allowed to rebuild them.

I think they are done...They released findings yesterday.:shrug:
 

Monty

Brilliant...and Canadian
In the Parks
No
I think they are done...They released findings yesterday.:shrug:
The NTSB report was preliminary. In normal circumstances they release a preliminary factual report, then an intermediate factual report within two to four weeks [any time in that period is when they may release the monorails back to Disney, but only when they're satisfied they have a complete understanding of all physical evidence] and then a final, extremely detailed report of findings and recommendations comes out when they've completed their investigation and research, which can take months and sometimes years.
 

EPCOT Explorer

New Member
The NTSB report was preliminary. In normal circumstances they release a preliminary factual report, then an intermediate factual report within two to four weeks [any time in that period is when they may release the monorails back to Disney, but only when they're satisfied they have a complete understanding of all physical evidence] and then a final, extremely detailed report of findings and recommendations comes out when they've completed their investigation and research, which can take months and sometimes years.

Those are not "Findings".... that is an "Advisory" that released Factual Information about the incident.



They're not done for a bit.

Understood, gentlemen...Thanks!
 

Cruiser237

Member
They must have finished the cab switch from purple to pink because my family rode in pink yesterday. I was surprised to see it back so fast.
 

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