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*** This post was edited by NITROman on 9/21/2002. ***
They are safe, but they've had accidents, one fell through the shaft anfter the cable snaped, and one went throught the breakes at the end of the ride and crashed into a ticket booth.
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Uh, which first generation freefall flew off the end of the track? (answer: none) I think that's a pretty good urban legend, but I'm also pretty darn sure it never happened.
The Edge at SFGAm (now Mr. Hyde's Nasty Fall at SFWoA), however, did experience an accident when one car fell down the lift shaft and crashed into another. This prompted Intamin to install anti-rollback devices on the lifts and changed the way the rides are loaded (cars do not enter the lift shaft until the one above it has cleared).
As others have said, these rides are safe in power failures because the default position for the brakes is closed, just like all roller coasters.
*** This post was edited by coasterdude318 on 9/21/2002. ***
Mr. Hydes doesn't have the anti-rollbacks though (either that or they used Mr. Hydes to test the silent magnetic anti-rollbacks)
This accident has info here:
Coasterdude318 is correct. None have ever flown off the end.
The version now at WOA had a nasty accident that was well publicized at the time. I also believe that SFOG's had an incident at one time in the early 1980s, but I am not sure if anyone was injured or not.
The rides used to advance a car into the shaft as one raised aboved and transferred over to the drop track. The cars now pause before entering the shaft until the above car has safely switched onto the drop track.
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StEeL PhAnToM said:
I have been on the pit fall when the power went out this is what happens. The brakes just lock up and you stick to the side of the pole. Then it lowers you safly buy the cord. Its not really a drop the cable on the inside of the pole accually pulls you down. The ride operator can stop it of slow it down at anypoint. It was kind of scary being stuck at the middle - top of the ride though, a unique expierance i will never want to do again.
If you're talking about PittFall, isn't this a 2nd-generation tower? Aren't its only brakes the frictionless magnetic ones the bottom? How can the brakes 'lock up'? Unless by 'locking up' you mean that the cables stop lifting and instead go in reverse.
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*** This post was edited by SFGAmLover on 9/21/2002. ***
I think the story above involved a power outage before the lifting mechanism and ride vehicles dissengaged from each other. Still interesting to know how that works, but different situations.
Shaggy, to the best of my knowledge, the FreeFall at SFOG hasn't had any incident like The Edge has had.
All the 1st gens have anti-rollbacks on the lift now. I can't believe they were built without them.
!st gens have three sets of service brakes, each is 25 feet long, and a great many proxies to determine car speed. As others have said already the cars are slowed in these and they will work the same way as coaster brakes would in a power failure. They will close into emergency position.
The car will leave the service brakes at no less than 11 mph. The reversing drive motor will stop the car, then back it up to go down the slope. Should the car be travelling less than 11mph it will not make the reversing drive and the ride will have to be cleared by mechanics. If it overshoots the reversing drive, the car will enter the emergency brakes and stop veryveryfast.
the member formerly known as MisterX
General Public said:
If it overshoots the reversing drive, the car will enter the emergency brakes and stop veryveryfast.
And the emergency brakes are very failsafe because the are always locked into the on position. They don't need any type of actuator.
the member formerly known as MisterX
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