A transfer track is a movable section of track that allows operators to move a coaster train to and from the main circuit for maintinence or storage.
To remove a train:
Operators stop and secure a coaster train on the transfer track. The transfer track is then moved using small motors until it lines up with a piece of storage track. From there, the coaster train can be moved onto the storage track.
To add a train:
The empty transfer track is lined up with a piece of storage track on which a coaster train is stored. The train is pushed onto the storage track and secured. The transfer track is then moved to line up with the main circuit of the coaster.
You might want to reformat this. You can make it specific by using numbers for the directions, or include the "To add/ a train..." parts within the sentences. Yer call.
*** This post was edited by janfrederick on 12/3/2001. ***
But, I have no idea how the train is put on and off of the Mind Eraser (SLC). Could anyone tell me?
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janfrederick, I hope you get a mention in the credits of that paper, LOL. Hope to meet up w/ you at CoasterCon XXV, as I have noticed we have agreed on topics of fun stuff not alwas related specifically to coasters...;~)!
Thanks RG! Likewise. In fact, I'm rejoining ACE after an 11 year hiatus. Make sure you wear your CB shirt so I can find you. Also, check the meeting calendar here come CON time. -e
"I'll bet that thing hits 5 Gs going through that loop.....faaar ooouut!"
Don't know how technical you wanna be, but I thought this'd help.
"Reality" is the only word in the language which should always be used in quotes.
Anyway, there are lots of ways for getting trains on and off. Most of Cedar Point's coasters, for instance, use a sliding transfer table, the same length as the train...put the train on the transfer table, slide it over, roll the train onto the storage track. Mean Streak is like that. In some cases, the transfer table is the same sort of track as the normal track. On Magnum XL-200, for instance, either side of the transfer table can be used as running track. If three trains are running, you're probably going to ride on the left-hand side of the transfer table; if two are running then the third will be parked on the left-hand side of the transfer table and trains will run on the right. If only one is running, then one train has to be pulled off and then winched off the transfer table and onto the storage track.
On Mean Streak, it's a little different in that the transfer track is not the same kind of track as the running track. On the transfer track, the train runs on its up-stop wheels instead of on its road wheels, so the transfer and storage tracks provide a means for servicing the road wheels.
Raptor and Mantis are similar, with Mantis the really strange one. The Raptor storage tracks use angle-iron rails that hold the train by the small wheels under the wheel covers, thus leaving the wheel assemblies completely open. The Mantis storage track consists of a center beam with lots of wheels on it; the train rolls off the transfer track rails and balances on its center beam with no rails supporting it at all.
Wildcat is the oddball...it has a short track section between the stations where a car can be stopped, the track rotated 90 degrees, and the car rolled off on to the storage track, perpendicular to the station track.
Millennium Force has a sliding track-replacement switch, where a straight track section is replaced with an S-shaped section leading from the storage track to the load station.
Someone asked about the Vekoma SLC...Those use rotary switches uptrack of the station. On one side of the switch is straight track, on the other side is an S-shaped transition track. With the train in the station, the switch is flipped over, then the train is propelled backward by the advancing wheels onto the storage track, and the switch is reset. Then the storage track brakes are released and the train rolls forward, off the end of the storage track, and falls into the muck below. Oh, sorry...it's just that it's supposedly happened on two different SLC's, so I thought I should mention it. :)
--Dave Althoff, Jr.
I'm told that The Big One at Blackpool has two storage tracks, and that the two storage tracks and single running track are all attached to a single assembly which moves vertically in the station. So the bottom two tracks are storage tracks, and the top track is the running track, the whole thing set up a little like an elevator.
Sounds like a neat idea to me!
--Dave Althoff, Jr.
Dave, you're huge posts are ledgendary :)
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That makes sense. If I remember correctly there is a pair of motors on the transfer, but I'm guessing there isn't enough resolution on the track switches to reliably detect the train position and make sure the lead car or tail car doesn't cross the joint....I'm guessing there is a check-in switch at the uptrack end that the transfer that has to be in contact with the last car for the transfer to open. Trouble is, if the train goes forward through the switch, there's no way to know for certain that the car there is the last car. It does kind of make sense... :)
--Dave Althoff, Jr.
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