Maverick web page

Jugga,

You also raise a great point. It would not be out of the question to think that CP is installing the line for their 2009 attraction right now.

But there isn't that much "burst" power required for TTD. The energy is needed to pressurize the motors, however thats a draw that is needed over the 45 second (or however long, I'm not Adam or Gomez, or Gomez Adams). WT needs a 4-5 second burst of the line each time a train is launched through the station. So its really not that surprising.

Its been discussed before that TTD uses the most power of any ride in the park. Thunder Canyon is second. WT uses a lot of power, but takes it in surges. It has to have a huge amount of power every time the train is going through the LIMS. Where as TTD is constantly needing power to launch, reset, launch, reset, etc? I'm guessing Maverick will be similar to WT's power usage.

I'm thinking the line they put in 2002 was actually meant for both TTD and WT. Since, both rides were being planned at the same time.

JuggaLotus said:
But there isn't that much "burst" power required for TTD. The energy is needed to pressurize the motors, however thats a draw that is needed over the 45 second (or however long, I'm not Adam or Gomez, or Gomez Adams). WT needs a 4-5 second burst of the line each time a train is launched through the station. So its really not that surprising.

Wicked Twister charges before the train launches, it takes 60 seconds to charge the LIM's. after that it just releases the energy as the train passes.

At least thats what we were told.

http://www.cedarpoint.com/_upload/inside_the_park/rides/roller_coasters/top_thrill_dragster/construction/Construction135.jpg
Just wanted to add to the electrical comsumption fire.:)

But yeah Gomez pretty much said it. Launch, reset, launch, reset, launch, reset, etc, etc......Lots of energy to get that hydraulic pressure where it needs to be.......LOTS of energy!

^ The majority of what you are seeing in that photo is hydraulic, not electrical. Hydraulic fluid due to its density compresses quite easily.

Where I work the presses are mostly hydraulic powered, we have a system pressure of aprox. 1200 psi and are pushing a 3/4 and 1 inch line simultainously with an average cycle time of about 5 seconds. So every 5 seconds the valves are fired in one direction and then reversed. this is powering one ram with a 6" stoke and another with a 1" stoke. All with a 30 horsepower motor and 75 gallons of DTE-26 hydraulic fluid.

Granted what TTD does is on a larger scale, my point is that power for a hydraulic pump is a constant draw where as a LIM or LSM is basically a power surge which is a lot of wear and tear on wire, connectors, and computer controls.

On another issue, Jugga I belive that TTD and WT are indeed on the same feed because you can hear the "electrical line noise" I was reffering to in my previous post through the speakers on TTD.

Are the old episodes from the Maverick website posted anywhere?

^^Youre right about that, but just looking at that makes you think of just what it takes to run all of those hydraulics.

P.S.-Im surprised that nobody has yet mentioned in the forum that the gap between the footings/footers and the supports have been filled and tarps have been wrapped around them!!!!11111:)

*** Edited 11/7/2006 10:10:26 PM UTC by TTD 120mph***

We thought it would be nice to let you have the glory of announcing it. ;)

I feel honored!:)

David Sagert said:
^ The majority of what you are seeing in that photo is hydraulic, not electrical. Hydraulic fluid due to its density compresses quite easily.

I thought the incompressibility of hydraulic fluid is what makes it so good for transferring pressure. If it was easily compressed it would not be well suited for things like hydraulic presses and elevators.

Shades is correct. Hydraulic fluid will not compress. You can compress gas to force it, but the fluid on its own will not compress.

Well, technically, fluids are compressible, despite what they teach you in high school. However, the compressibility is so low that its essentially nonexistent.

You know what I meant.. :-|

edit: high school?

*** Edited 11/8/2006 6:40:18 PM UTC by e x i t english***

What? They didn't teach you that in high school? Hmm... I guess that explains a lot about Ohio.

;)

LOL!^^

Well technically speaking the fluid will only compress by dj's minescule amount if every channel, line, motor, and accumulator is perfectly rigid allowing for no volume change at all. materials like rubber, steel, and aluminum are never completely rigid, they flex. Furthermore even the rubber lines wont flex if there is an accumulator. In which case there is on this ride.

So the force that drives the launch is not hydraulic, it's pneumatic in principle. Nitrogen gas is what is compressed (in the accumulator) and the stroke is so large that they required external storage tanks for the N_2. But since the method for transfering that energy is through a liquid medium, it is labeled hydraulic powered.

I hope that explains alot about where I come from. Gig 'em Aggies!

An other thing. The noise you here is not AC line noise. AC line noise cannot be heard through speakers because speakers run off of DC current (AC run through some kind of rectifier usually diodes in the amp). What you hear is the effect of magnetic flux in the form of an EM wave on a voice coil of a speaker (a solenoid). The frequency of modulation of the flux from an AC linear motor is 60 Hz (the same freq as AC).
*** Edited 11/10/2006 4:30:48 PM UTC by Kceovaisnt***

I guess I should clarify myself.

Hydraulic fluid does not compress, you are right, but what I am saying is that due to that fact when you put it through a pump into an accumulator it will build pressure quickly with less pump run time thusly less energy, as opposed to something like air which has to be compressed and compressed and compressed some more to create any useable pressure.

Being dense allows the system to create the pressure much quicker and with ease.

Kceovaisnt said: An other thing. The noise you here is not AC line noise. AC line noise cannot be heard through speakers because speakers run off of DC current (AC run through some kind of rectifier usually diodes in the amp). What you hear is the effect of magnetic flux in the form of an EM wave on a voice coil of a speaker (a solenoid). The frequency of modulation of the flux from an AC linear motor is 60 Hz (the same freq as AC).
*** Edited 11/10/2006 4:30:48 PM UTC by Kceovaisnt***

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AC is not always at 60 hertz. That is why on most industrial motors it is labeled as 50 - 60 hz. Which is a large difference in both the motor and sound world.

AC can be controled through a frequency inverter ( seen at this link http://web6.automationdirect.com/adc/Overview/Catalog/AC_Drives_-z-_Motors/DURApulse_-_GS3_(230_-z-_460_VAC_Sensorless_Vector_Control ), by changing the hertz you change the speed of the AC linear line motor. You can take a 1750 RPM motor and control it's speed 0 to 100 percent by changing it's hertz from 0 to 60.

In sound a change from 50 to 60 hertz would produce a diffrent tone which you would be able to pick out by ear.

And you are contradicting yourself in the fact that AC line noise can not be heard through a speaker.

Since the speaker is powered by AC at it's root, it can pick up that AC line noise and transfer it into sound through the process of rectifiers that you described.

This AC line noise can also be seen on 24 VDC powered HMI touch screens as a blurred or snowy picture.
*** Edited 11/11/2006 12:50:45 AM UTC by David Sagert***

David Sagert said:

Since the speaker is powered by AC at it's root, it can pick up that AC line noise and transfer it into sound through the process of rectifiers that you described.

You could say that about anything my friend. Every thing that is powered by grid service which is everything in your house or anywhere not powered by a battery or wind is powered by AC at its root.

Since rectifiers only allow current to take a unified direction, it arrests any AC modulation which could be heard as that 60 hertz hum in almost every case.

I would see no reason to employ inverters for a principle that does not require regulation of and is independent of AC mod frequency. Typically noise problems in DC present themselves in the form of ground loop noise.

Given that, speakers are a pair of differencing magnets being one permanent and one electric, it is subject to flux noise from an EM wave propogated by an AC motor from substantial distances especially in instances of high voltage. The frequency of that motor impulse is close to 60 hertz as inverters are rather expensive and are avoided if possible. As line AC is always 60 Hz +/- 10%.

The new video is up!