# 4D Loop

Wednesday, August 14, 2002 12:31 AM

I have this great idea for a 4D design with a loop in it. The loop would have to be spaced out though, for the width of the trains. But hopefully you'll understand this.

Say there are 5 points on a loop. Point A is where you enter the loop. Point B is where the loop is sloped to vertical, about to peak. Point C is the peak of the loop. Point D is the vertical part about to level out. And Point E is where you exit the loop.

Ok, with that in mind, think of it this way. Your enter the loop in the backwards upright position that you are like when you leave the station and go up the lift. From Points A to B, you are tilting forwards to go upside down. At Point B, you are upsidedown. From Points B to C, you are tilting forwards to be in the upright position. At point C, you are upright. From Points C to D, you are tilting forwards to go upside down. At Point D, you are upside down. From Points D to E, you are tilting forwards to go upright. At Point E, you are upright.

Does that make sense? If it doesn't, just think of it as a Top Spin on wheels. It's really all it is, lus a little more force and a better ride to finish with. I don't know if the g-forces would be too high, but it really is kinda just like a Top Spin. If this could be possible, I think it would be a lot of fun.

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Call me SpongeBobAlex.

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Wednesday, August 14, 2002 12:36 AM
Since forces are always excerted toward the outside of a loop, while flipping, you'd be banging all over your harness. You'd have a really nice spike of airime at top though!
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Wednesday, August 14, 2002 1:08 AM
Would be negative g heaven, but i also think it would be the ultimate aneurysm-burster.

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Stengel quote: Ich sprich, denke und traĆ¼me Achterbahn!

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Wednesday, August 14, 2002 4:00 AM
ive already done this (in scream machines), its quite cool!!
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Wednesday, August 14, 2002 5:45 AM
Geez that would have to pull like 4 negative G's followed immediaely by 4 positive g's. Cool ;)

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All I need is 4.5 million bucks and a half a mile long sliver of land and maybe someone could build me my very own Shivering Timbers. ;)

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Wednesday, August 14, 2002 7:12 AM
wait till badnitrus releases Alien, it has a loop in it...

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Stop the lawyers, not the rides!

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Wednesday, August 14, 2002 7:16 AM
So this is basically the same motion that a Chance Inverter creates? Link here.

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The Other Siebert

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Wednesday, August 14, 2002 7:59 AM

That sounds cool. But the forces on it might be a little painful. But you might be able to do the second half of the loop (point C to E) if you flip the seats upside down a little bit before point D. That would be really cool cuz it would give you the sensation of diving toward the ground. Except I've never ridden X so I wouldn't know if you already get the same sensation out of the first drop.

Man I hope we see more 4D's out there. Ones that work.

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Six Flags, the only chain of parks that can manage to have stacking with a one train operation.

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Wednesday, August 14, 2002 10:55 AM
I remember reading that it takes a 4D 600 or so feet of track to do a full flip. While a great idea, I doubt it could be done currently.
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Wednesday, August 14, 2002 11:07 AM

So this is basically the same motion that a Chance Inverter creates?

Speaking of Inverter, my town's annual September fest has one. That feeling is AWESOME. It's two bucks a ride though...

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Wednesday, August 14, 2002 11:15 AM

I think we should see a non-inverting loop on a 4D. In other words, the seats will rotate at the same pace of the loop is inverting you, so you don't invert.

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Wednesday, August 14, 2002 12:42 PM
The would be just plain old boring though. I had this other idea where it just tilted forwards and was upsidedown at the peak of the loop, and tilted forward again to level out. It might not be as forceless and might be more possible. I just thought the other idea would be cool for teh "diving at the ground" part, the airtime at the top of the loop, and how it would look so 4Dish!

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Call me SpongeBobAlex.

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Wednesday, August 14, 2002 1:22 PM
I think a 4D loop would be where the looping track twists like a zero-G roll. Of course that could burst some arteries, but it's still cool imagining it.

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Take it up a notch, Mr. Operator! I wanna feel my brains in my feet!

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Wednesday, August 14, 2002 3:27 PM

wait till badnitrus releases Alien, it has a loop in it...

I didn't think they had their original designs on their site anymore. Oh well, that coaster did look cool.

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