When A Train Valleys...

[coasterkid94]

When a train valleys in the middle of the track (not on block or trim brakes), how do the mechanics/maintenance people get the train back to the station? Also, if the train is stuck high off the ground, how do the riders on board get off?

[RagingBullFan]

To get riders off from high off the ground a cherry picker is used, and unloaded a row at a time.

To get the train back to the station, usually the train is winched up so the low section of track is clear of the train, and then the section of track is removed, and the train is slowly winched off and each car on the train is taken off one by one and then transported back to the transfer track section of the ride.

[FParker185]

http://www.coasterphotos.com/Videos/fla ... ttest.html

There is video of the first test run of Boardwalk Bullet at Kemah Boardwalk in Houston a new Gravity Group coaster. Of course there is a reason it's in this thread

[cycamps]

It's funny how everyone was cheering and shouting. Listen to that one guy that says "Come on Baby!!!" before it rolls back.

[Trailblazer Tony]

That sucks, but isn't that kind of normal for first test runs on roller coasters?

[rcoaster]

^I don't think that it's very common that rides get stuck on the first run, but that could be because of poorly adjusted trims, or problems with track layout that can be fixed. When some one designs the ride, they calculate that it will make the course, but if the owner of the ride switches trains, that can simply be enough to cause a valley, such as on Son of Beast. I wonder if any rides at Gam valleyed at the first test run.
I also want to know why Raging Bull valleyed this pre season, my guess is that the trim brakes one that hill were too tight or the wind speed.

[FParker185]

Most wooden coasters valley on the first few test runs, also it's not unheard of on steel coasters. Got all new bearings that have to be broken in, grease is still thick and other adjustments may need to be made.

Boardwalk Bullet still isnt open though though it has recently completed a few circuits after numerous valleys.

[rcoaster]

What are all the rides that valleyed at Gam, and where di they valley? Im sure rides like batman never valleyed, but I wonder which ones.

[Trailblazer Tony]

Most wooden coasters valley on the first few test runs, also it's not unheard of on steel coasters. Got all new bearings that have to be broken in, grease is still thick and other adjustments may need to be made.

Boardwalk Bullet still isnt open though though it has recently completed a few circuits after numerous valleys.

Thank you! I thought coasters run the slight risk of valleying at first. Glad i'm not going crazy again.

[rcoaster]

That must be horrible when a designer of a coaster figured out his ride valleyed due to poor design and realism, but i think that most valley due to poor buiding technique.

[FParker185]

a few Cobb coasters had to be modified due to valleying issues. Tornado at Adventureland is a good example of it, and it still hangs up on the second hill regularly. I know Cyclone at SFAW and I believe Cyclone at Riverside (now SFNE) also needed similar adjustments to hills after it was built, but to everyones credit that was well before CAD, was still hand calculated, hand drawn and hand copied blueprints.

[rcoaster]

Yeah..... When I took CAD in school, it was not easy to even design a bolt using the computer... i can only imagine drawing out a whole ride...

[Trailblazer Tony]

^It gets easier when you use it in your major. But having done plenty of hand drawings and calculations for architecture, that would be even WORSE than doing Cad drawings!

[cycamps]

I think that whole subject is difficult.