Posted
Six Flags New England reopened its Superman coaster following a collision of two trains in the station that caused more than a dozen injuries. Investigators say a ruptured air supply caused a brake failure that allowed the train to enter into the station at an undetermined speed less than 20 mph.
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--Dave Althoff, Jr.
Far fetched? Perhaps...
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Yeeee Haaawwww!
I totally would believe this because when I was a sfne a about a week before the accident and I heard a loud hissing and the air gates were opening really slow. This meant that there was a leak in that pipe so there could just a easily be a leak in the braking system.
The reason you heard this "loud hissing noise" was because in the weeks prior, the air gates were broken due to guests pushing on them constantly. Some of you may remember the alternate loading procedure that they used (loading from the front to the back, no choice of seats). Well, they finally got them fixed two weeks later but in order to due this, they had to bypass the main air system and used a remote switch at the back unload of the station to open the gates. The loud hissing was comming from this switch which had nothing to do with the main supply on S:ROS
--Dave Althoff, Jr.
*** This post was edited by Jeff on 8/20/2001. ***
The magnetic brake caliper's on Millennium Force look different from that I believe. The physical brakes themselves are the same but the cylinders and wiring are different.
I still can't believe Intamin would have not put enough counterweights on the things to make them lock close if the air supply was ruptured. I would be more concerned about making sure they locked close in the event of a power outage or a loss of pressure similar than messing with hoses.
Why doesn't Intamin leave the brakes closed permanently? Or is it because the train will slow down so much it will need a lot of energy to pull it out of the brakes?
Thats a good question. Based on what I've seen of a nearly empty MF train creeping through the stationary trim brakes at the end of the ride I would guess they could use the system you suggest. The only negetive I can see with this system would be if it's raining out. At that point the way they have the drive tires configured may not work. Good chance they would slip trying to pull the train through the brake. Also Dave, I have stood less that 6 feet away from that very spot you have in your picture and can not quite figure out the circuit, so unfortunately I cannot shed any light.
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I understand how losing air pressure could cause the caliper to unlock so that it could be easily pushed open. I can even understand (though it doesn't look right) how a blown air supply line could unlock other calipers as well. What I can't understand is what pushes the caliper open, since there is no air pressure to move the brake and the counterweight should hold the caliper closed.
--Dave Althoff, Jr.
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