Millennium Rollbacks.

How does CP get Millennium going again after a rollback?

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http://www.aaronradatz.com
"What happened to Integrity, I don't see it on MTV, all I see is chereography. And I'll never be a dancer."- John Feldman - Goldfinger
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They use a chain and pull it over the track .

Or separate each car from the track one by one and bring it back over and put it back on the transfer track using a crane. This is what they did when it rolled back before the "Magnum" hill in 2000. Either way it is a giant pain in the a** since those trains are extremely heavy!

-Matt
2001 Magnum Crew

The better thing to do is put a bunch of dummies in the trains, and heat up the wheels with torches. Preventing problems is better than let the coaster rollback.

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House of Tomorrow: Only technology makes live worth living

Torches? Are we back to the medieval times? Just throw the dummies in, let it do a few cycles and you're good to go.

Dummies didn't keep it from rolling back on physics day this year.

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House of Tomorrow: Only technology makes live worth living

Actually ddog, on most cold mornings, the MF trains are heated with heaters underneath the platform. Notice the tarps that are there I assume to hold some of the heat in. Intamins are very tempermental. MF is just one of several rides at CP that are a pain to get running in the cold. Gemini and Mine Ride are among the others.

-Matt
2001 Magnum Crew

Heaters? Yes. Torches? Highly unlikely.

I remember on a very cold HW in 2001 when those heaters were very much appreciated while waiting in that brake run...just sitting there and feeling warmth was quite nice.

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Launch: Tophat: Twistage: Brakes...

...Denial is an ugly thing.

I don't think they used the heaters and tarp enclosures this year, at least they didn't closing weekend and it was cold as balls. Remember that this year they weren't using the nylon wheels which seemed to be extra fast when they were warm and extra slow when it was cold.

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Jeff
Webmaster/GTTP - Sillynonsense.com
"Climbing as we fall, we dare to hold on to our fate, and steal away our destiny to catch ourselves with quiet grace" - The Stairs, INXS

I heard something about torches from somone... This is the first year I've been to CP on colder days. I didn't get my license till later last year, so I was dependant on other people to go there. [may I remind you most people I know rather not got to CP in cold weather]

I thought they would more likely use heaters like they have done, as heating the 60 wheels on each train would be a pain. Just goes to show how many people make stuff up to hear the sound of their voice.

:Illrelevant note: I recall people talking about 'slop' on MF, I think it's from the contraction of the track.

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House of Tomorrow: Only technology makes live worth living

Instead of having heaters underneath the station, they had individual blow torches that they laid on each of the wheels for a couple minutes. I guess it was too late in the season to pull out the heaters.

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Brent Haley
Gemini Crew '02

SteelMonsters said:

:Illrelevant note: I recall people talking about 'slop' on MF, I think it's from the contraction of the track.

Nope... it was warn springs in the wheels. If the track was contracting it would form gaps in the joints!

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Jeff
Webmaster/GTTP - Sillynonsense.com
"Climbing as we fall, we dare to hold on to our fate, and steal away our destiny to catch ourselves with quiet grace" - The Stairs, INXS

I ment contraction in cold weather...

Gaps won’t necessarily from at the joints. On the atomic level, steel atoms expand and contract with the weather similar to what air does. If you increase or decrease the pressure, it creates force between the atoms in the air. The difference with steel is it tries to retain its shape while expanding and contracting. The difference with the track is there are bolt connectors next to both of the running rails. That significantly reduces the lengthwise contraction of the steel, only allowing its width and height to expand/contract.

Since the track is actually smaller in colder weather, the ‘springs’ in the wheels have more travel to get to the track, reducing their effect. Also, the running wheels were starting to wear out at the end of the season, changing the contact point on the side friction wheels, and extending the upstops further than normal.

I really doubt that the springs wore out, as it takes a pretty extreme amount of use to wear them out. The expansion and contraction of the track, the setup of the wheel assembles, the worn running wheels, and the condition of the side friction or upstops are much more likely suspects than worn out ‘springs’.

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House of Tomorrow: Only technology makes live worth living

Let me make it easier for you then. The blue train was sloppy, the other two were not. It was the springs. The simple answer is usually the right one.

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Jeff
Webmaster/GTTP - Sillynonsense.com
"Climbing as we fall, we dare to hold on to our fate, and steal away our destiny to catch ourselves with quiet grace" - The Stairs, INXS

If the springs wore out, then why would there be inconsistent wear between trains, and even cars? Springs wear out relatively consistent, and you propose otherwise.

I thought the sole cause of ‘slop’ was the contraction of the steel, forgetting about the inconstancy between trains and cars. ‘The worn out springs cause the slop’ is just as incompetent as ‘The contraction of the steel causes slop’.

Some of your posts lack details. Credibility is formed by accurate details, and a lot of them. Why do springs cause ‘slop’? You stated a fact, but there is no reasoning behind it, why is that? In most cases, lack of details just means you don’t really know the truth, but just going off of assumptions or you own opinion.

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House of Tomorrow: Only technology makes live worth living

Because the red and yellow trains had their springs replaced before opening day. Again... simple = correct. Each track section has hundreds of welds... how long do you think it would last in Ohio weather if contraction serious enough to vary the ride was really an issue?

How do I know? Well, if you've been here for awhile, you know I don't make up crap.

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Jeff
Webmaster/GTTP - Sillynonsense.com
"Climbing as we fall, we dare to hold on to our fate, and steal away our destiny to catch ourselves with quiet grace" - The Stairs, INXS

Need a shave? Try Occam's Razor!

One thing I hate is denial of information. I'm far from incompetent, but I wasn’t born knowing everything you know. I love information, especially when it’s about engineering. I usually ask myself questions such as ‘How did they make that’, ‘How does that work’, or ‘How did they get that to work that well’ when I see something interesting to me. When I do manage to figure out how they work, which in some cases it takes quite a bit of work to find out, I sometimes try to recreate it.

Knowledge is a very powerful tool, I go to some extreme lengths to get more of it. Why I’m so interested to it, and most people are not is beyond me, but it’s something I’ve liked my whole life. If there is one thing I like more than knowing things, it’s making things and/or solving their problems, especially when they are complex. That’s why I’m on my why to becoming an engineer. Why do you think I though of the cause of the ‘slop’ in the first place, I’m human and I make mistakes, but I’m in the process of learning and making less of them. Sorry if I irritated you in any way, Jeff…

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House of Tomorrow: Only technology makes live worth living

jeff, they did use the heaters in the beginning of the year I worked MF in the beginning and they did use them they tore them down around the middle to the end of june

-Doug-
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I am a Mechanical Engineering major not an english major so pardon my horrible grammer

Hey SteelMonster. . .
You are correct in saying that the steel would expand and contract "at the molecular level." And that is just it -- the MOLECULAR level. Steel, as you may or may not know, is used a LOT of places in cold and warm weather conditions. The "expanding and contracting" due to weather extremes would generally not even have a measurable effect. Like less than a millimeter. Tiny. Insignificant.

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"Uhhh I don't think my restraint is supposed to move like this. . ."
**Not being rude or mean, just talking.** :)
As always, correct me if I'm wrong. . . as I can be.
*** This post was edited by LIVE ENTERTAINMENT 11/21/2002 10:19:38 PM ***