Sorry if I sound like a one-track record. After the launch, the brake fins pop up. What is the fail-safe for that? See, they would be connected to the PLC via cables or hoses. That is not 100% safe, think S:ROS.
The above is quite different to the brakes on Giant Drops, standard anti-rollbacks & anything else that applies. These are simple & do not rely on any external power.
Easy, the power off configuration is fins up, and it takes energy to hold them down. So in case of a pneumatic or electrical or whatever failure, they just pop up. No problem.
ASTM spec for roller coaster design requires that brakes fail into an engaged mode.
12.2 Design critical braking systems to be energized systems which remain activated in the event of power failure where appropriate.
.:| Brandon Rodriguez |:.
That would actually make XLR8 a thrilling ride if the brakes failed.
A loss of power isn't a concern with most coaster brakes, as they indeed engage when there's a short. The real problem is bugs that might occur in the computer controlled automation. A software glitch could cause the brakes to not engage for some reason, unlikely but possible.
Can we change the name of Top Gun to your mom so no one wants to ride your mom?
Joey Ciborek, Florida Coaster Club, Member
"WE RIDE ALL YEAR!!!" www.FloridaCoasterClub.com
"It's like an addiction" Me, The Discovery Channel, Ultimate Guide: Roller Coasters 5/27/02
Leave it to Rideman to make the point in the most easy to understand, albiet technical, verbiage of all! Dave, I salute you.:)
How are you doing, Kevin? Xcelerator got you nervous? I will let you know in a few weeks exactly how frightened I was.;)
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