California Great America (CGA) Discussion Thread

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Re: California Great America (CGA) Discussion Thread

Postby 154bmag » Tue Sep 11, 2012 10:28 am

I could walk faster then Grizzly's top "speed"
I think we can set our differences behind us...for science...you monster.

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Re: California Great America (CGA) Discussion Thread

Postby rolercstrluvr » Tue Sep 11, 2012 12:16 pm

I think we get it now that GS will be faster than Grizzly and the Giant Dipper.
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Re: California Great America (CGA) Discussion Thread

Postby rcdude » Tue Sep 11, 2012 1:15 pm

Warning, technical post ahead...

According to the laws of conservation of energy, the potential plus kinetic energy at the top of the lift will equal the kinetic energy at the bottom of the first drop (this is a rough and simplified example, so we'll ignore friction and drag). Kinetic energy is equal to half the mass times the velocity squared, or 1/2mv^2, and potential energy is equal to mass times height times the acceleration due to gravity at a point, or mgh (we'll use 32.2 ft/s^2 as an approximation). Therefore, by applying algebraic concepts, the speed at the bottom of the first drop (in feet per second) is the square root of the velocity of the lift (in feet per second) squared plus twice the height times the acceleration due to gravity, or sqrt(v^2+2gh). This will give the answer in feet per second, and to convert it to miles per hour, multiply the answer by 3600/5280 (approximately 0.682). Applying this math, and assuming the speed of the lift is negligibe, you get:

The maximum possible speed of a 91 foot tall coaster (such as Grizzly) is approximately 52 MPH

The maximum possible speed of a 70 foot tall coaster (such as Giant Dipper) is approximately 45 MPH

The maximum possible speed of a 108 foot tall coaster (such as Gold Striker) is approximately 56 MPH

So while some speeds are likely exagerrated, most of them are probably pretty close to the actual speed. This method won't get you the true top speed, but it can prove if the "official" speed for a ride is high (however, keep in mind that lift speed can play a role, especially in coasters with cable lifts, and the full drop length must be taken into account if the ride drops below ground level). If the laws of physics don't allow that speed to be achieved in an ideal case, it won't occur in a real world case.
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Re: California Great America (CGA) Discussion Thread

Postby Angry_Gumball » Tue Sep 11, 2012 5:22 pm

^Seems about right. My No Limits creation, if I were go base off of No Limits' physics hits just about 53mph at a 108-foot height. Definitely a lot of math for my brain to chew on :)

And a coaster update - CGA was kind and gave us an update via their Facebook:

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http://www.facebook.com/media/set/?set=a.10150969778168155.411586.28442453154&type=1

I'll be there this weekend to check it out!

Another Update from GCI:
Some more photos, from GCI's Facebook (As if there wasn't enough photos already!)
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http://www.facebook.com/media/set/?set=a.10151159655279095.470646.23030364094&type=1

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Re: California Great America (CGA) Discussion Thread

Postby JeffyJosephNorCal » Tue Sep 11, 2012 6:40 pm

^I can almost smell the fresh new wood from those pics already :p

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Re: California Great America (CGA) Discussion Thread

Postby Angry_Gumball » Tue Sep 11, 2012 6:43 pm

The fresh scent of Southern Yellow Pine....Is that what they use?

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Re: California Great America (CGA) Discussion Thread

Postby 154bmag » Tue Sep 11, 2012 9:01 pm

As if there wasn't enough photos already

There's never enough photos!
I think we can set our differences behind us...for science...you monster.

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Re: California Great America (CGA) Discussion Thread

Postby Blue Fire Guy » Wed Sep 12, 2012 2:24 pm

Mmmm...love the new sections going up, I can already picture the train racing through those sexy GCI curves. It'll be even better when I see it in person this Saturday, can't wait! :)

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Re: California Great America (CGA) Discussion Thread

Postby robman » Wed Sep 12, 2012 3:18 pm

So I was messing around with Google Maps and looking around the park, then I noticed the street view went on this little backstage path and I found something interesting and really cool.
old train cars..png
The park uses two of the old train cars in the Redwood Amphitheater! Not really sure what the rooms in there are for though. Plus the name of the area is the Redwood Depot.
train013.jpg
Here's a picture of comparison, you notice the curved roof and the same back railing that is still there today.
Wheels.png
Here's a close of view confirming that is the train cars, since they still have the original wheels and sitting on rails.

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Re: California Great America (CGA) Discussion Thread

Postby Myself » Wed Sep 12, 2012 3:43 pm

For a backstage area, that's considerably well landscaped...with the signage and cacti, it almost looks like they want you to see it!

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