Mistake made on National Geographic- 206 mph?

on www.Comcast.net there is a video featuring a preview of National Geographic's special "Extreme Engineering-Mega Coaster", documenting the construction of Kingda Ka. the narrator says, about a minute into the video, that the coaster will reach speeds of 206 in about 3.5 seconds. quite a difference don't you think?

http://www.comcast.net/providers/fan/popup.html?v=65550670&pl=72503790.xml&config=/config/common/fan/default.xml

[stoning][flush]

206kph [;)]

Burned down ouch sorry man but thats gotta sting.!

One thing I've never understood about hydraulic launch systems is where do they get the fluid? does it just get recycled or do you have to keep getting more?

It is just reused every launch. Not like it leaks out or is drained or burned.

fluid? really? wow i wonder if air would be more efficent and faster, or maybe magnets like the bullet trains use.

^Air is used and yes, it can propel a train faster but the trains are much smaller. Air is not powerful enough to launch heavier trains with more people than what they already launch.

Magnets - already used as well. Superman: The Escape (not a coaster ) Uses the same technology as the bullet trains except the LSM (Linear Synchronous Motors) are timed to fire at perfect timing to propel the train. Downside? Very slow acceleration.

You could also use LIMS (Linear Induction Motors) which are faster but use ALOT of energy. Electricity is very weak in comparison to Hydraulics.


Hydraulic launches are very efficient and to my knowledge they reset as quickly as anything else. They are by far the most powerful and can launch much heavier objects to higher speeds.

Originally posted by Raigodmaster141

Burned down ouch sorry man but thats gotta sting.!

hilarious. well that's what i thought. but i've seen the actual program and they said 206 mph. i saw this video and it made me remember. but whatever, at least some people are getting educated on hydraulic launches...right...? yes, good thing. [;)]

We all know how there is a point in our life where we need to know everything about hydraulic launches.

Yeah, they migh of mixed up the mp/h and kmp/h, or maybe on the video then didnt even give a rate of spped, they jsut said it goes to 206, and I am guessing you are American and guessed it was imperial. Since the Metric system is used much much more then the Imperial system and they probably thought that more people would think its kmm/h, and that the Imperial folk would guess they are using the Metric system, since its National Geographic.

Exactly what i was about to say.
206 kph = roughly 128 mph

Close this topic please.

But thanks for the info, even though im not able to see the video, since I dont have comcast.

[edit]: also, if im not mistaken, doesn't extreme engineering air on Discovery Channel, not National Geographic?

Originally posted by Real


You could also use LIMS (Linear Induction Motors) which are faster but use ALOT of energy. Electricity is very weak in comparison to Hydraulics.


Hydraulic launches are very efficient and to my knowledge they reset as quickly as anything else. They are by far the most powerful and can launch much heavier objects to higher speeds.

hydraulic launches do not need to be compressed like air does, thats why air resets slower and can only push so much weight around.

they also said that if TTD used LIMS that it would need the electricity that all of sandusky, Ohio uses in one day. yikes

[hyyyper]

it's 209kph

Thats what she said....

Originally posted by SFMM homie

Thats what she said....

She???