Kingda Ka Rollbacks?

Yeah, what do you know.

^ Hmmm... Instead of adding something constructive to the discussion, add an unnecessary cutdown to a post that was simply stating my understanding of the design. Good job Goliath!

It would make almost no sense for the company to put a trim up there that barely has an effect on speed when they could just change the design a very small amount to account for many different speeds, i.e. Dragster.

^Exactly, it has barely any effect of the speed and you don't really get any more time to look around than TTD. The whole "we put it there so people can enjoy the view" thing is just SF way of countering the instant negativity the ride recieved when people first figured out there was a trim. (IMO) I do believe it is there to control the whip motion from the back seat when descending into the spiral. That's why it's in the position that it is.

I do have to say that the first thought I had when seeing Dragster (this year) was "WHY not build it so the direction of travel *at* 420' is facing EAST....you know, the direction of prevailing winds?"

As it is, TTD faces west up there, which would SEEM to increase the likelihood of a rollback...esp. considering winds typically are stronger as you go up...

Seems like you'd want whatever small "margin for error" to be in your favor, no?
*** Edited 10/16/2005 11:10:02 PM UTC by rollergator***

Umm... Dragster faces south-southwest.

you guys know that tehre is no button? I thought there were changes made to kk ?

There have been times where the programming of kk have gotten screwed up.

People themselves program the computer of the ride. so if the ride miscalculates something there has to be an override.

I have a college degree in computers and I have seen computers screw up many times.

There is a manual system to kk.

They manually launched the trains for cc ebcause the computers programming was screwed up .

IF you dont want to beleive me fine.

^ LOL you have a "college degree in computers." Hmm... what school offers the "computers" degree.

Learn how to talk correctly, and then maybe people will take you seriously.

here is the link to the patent for the boost system that i am talking about . notice the date is october 2004 . wich is the october that kk was being built.

http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&
p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=8&
f=G&l=50&co1=AND&d=PG01&s1=rollercoaster&OS=
ollercoaster&RS=rollercoaster

It also mentions that the boost system can be controlled by a valve.

now if this button just controls that valve they can boost the trains speed if the motor doesnt launch it at enough speed. *** Edited 10/17/2005 4:26:55 AM UTC by majortom1981*** *** Edited 10/17/2005 4:41:45 AM UTC by majortom1981***

also whats wrong with "I have a degree in computers ? "

There is nothing wrong with how i said that.I am on a message board about roller coasters for the public. I am not writing an essay or a newspaper article .

and from what i am told they mostly use that button when they launch an empty train but they rarely have to use it

What is wrong with 'I have a degree in computers'? Well, we'd like to know what specific type of degree you have. I could say I work in a hospital, but that doesn't make me a medical expert. Esp. when you find out I have no type of medical training what so ever.

Also, you may have a degree, but you still can't spell. You may not be writting an essey or article, but the way you post makes you look unintelligent, and no one here will take you seriously.

Also, posting 3 in a row is frowned upon by the TOS. Couldn't you just edit and add that into the one post?

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TeknoScorpion said:
What is wrong with 'I have a degree in computers'? Well, we'd like to know what specific type of degree you have. I could say I work in a hospital, but that doesn't make me a medical expert. Esp. when you find out I have no type of medical training what so ever.

Also, you may have a degree, but you still can't spell. You may not be writting an essey or article, but the way you post makes you look unintelligent, and no one here will take you seriously.

Also, posting 3 in a row is frowned upon by the TOS. Couldn't you just edit and add that into the one post?

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I think your mad because he proved everyone wrong with that link. Guez wut, that boost buton excist. Take those spelling mistakes! Matt

I don't think you've seen Tekno mad. ;)

The link doesn't work for me.

Ha! Mad? Why? He hasn't 'proven' anything yet. And for the record, no where did I ever say that he was wrong, or disagree with him. I just implied that just because a ride op said it does not verify it as fact.

I read the link (after cutting and pasting every line, because someone can't insert a proper link), and I'm still confused about what I read. It did not, due to my lack of understanding mostly, confirm or deny that there was some 'mystery booster button'. It talks about a booster on a launch coaster as an extra to the launch. I never saw it say anything about a button, but a winch.

So I don't know, nor do I care if he is right, as I said I had heard from more reliable sources than a ride op that it does launch faster.

Oh, and by the way, if you'd read the rules and guidelines for the site, you'd know Jeff will probably delete where you quoted me on this page, as you're posting directly under my post. Why did you need to quote. And your little 'speeling errroors' make you look just as unintelligent.

Oh, and you still haven't seen me mad :).

There can't be an emergency button. The day I went there, they were testing kk normally, then they did a series of saftey checks. For example, they slowed down a train going into the brakes, then stopped t before it entered the station. They were checking to make sure the computers knew that there was still a train on the ride, so the train on the launch pad wasn't launched. There would be no reason to stop a train during launch, if all the other trains are in the station.

Italianstallion - yes, you DO need more force to send an empty train. Empty trains have less energy, so wind and friction slow them down a lot more by the time they get to the top hat compared to full trains.

Oh, I see now. You don't mean the launch but the ascent. Less weight= less momentum. I get it. My bad.

as for the magnetic trim at the top. i believe it is to prevent the train from stalling at the top. If it were to stop at the top the magnet would push it back the other way, its not the strongest force, very mild. & when the train crosses the trim magnet if gives you the same mild force, which isn't even noticable, down the hill. that is my understanding of it. i could be wrong

Hey... getting off of the topic of physics, computers, & construction...
I was at SFGadv this past Saturday. Rode KK twice. Waited for 2.5 hours the first time, due to 3 breakdowns. In one of the breakdowns during test launches, the left side train train was launched, and didn't make it over the tophat, and rolled back. It was pretty interesting to watch.

Thinking about it, if it was to rollback, while you are on it, That would be a pretty incredible ride, then you get relaunched? Two rides for the price of one... NOT TO BAD, HUH.

Sigh... there seems to be gross misunderstanding of magnetic braking systems.

Magnets alone cannot stop a train. It's just a law of pysics regarding magnetic attraction. The amount of repelling force is proportional to how fast (aka how much force) the two opposite magnets pass each other at. (In layman's terms). So if the two magnets pass each other at a very slow speed, the amount of repelling force would also be very little.

You would need some other outside force to completely stop the train. For example, a drive tire, or something as simple as wind.

It is by this nature that Magnetic brakes are "self adjusting."