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This is the coaster that is in my backyard!

 

 

Not really, I just made it with AutoCAD and put in into a pic I took of my backyard. I got the idea from a 1st gen freefall. My ride has two 15-ft vertical track sections, with an airtime hill in-between.

 

Two riders board the ride at the top, and then they are released down the short drop. They are lying on their backs at the bottom. The hill provides great negative acceleration g airtime!. Then the car continues up the second tower until gravity brings it back down. The riders will experience upside-down freefall on the descent from the second tower! The ride continues back and forth along the same track until coming to a stop on one side of the airtime hill.

 

The riders are only held in by a ratcheting lap bar! This ride will make a great addition to the "Bench: The Ride" collection, since the seats are flat, wooden benches!

 

My friend, you have just given me a great revision for an alternative layout...(if I can get it to work that is...) I'm not saying I currently lack ideas...I'm currently plotting it as a terrain figure-8 coaster with a lift in the middle of the ride (it starts on top of a hill...) But given the space, a freefall with a airtime hill works out quite nicely. As for the other guy who actually made one, how smooth does that run? I noticed that you didnt really curve the track all that much....

 

Jared"still revising plans for Project: Wildcat"Becker

 

Yes, Project: Wildcat is currently the working name of my coaster. The alternative would be something with Cobra in it...

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*DP* Current pics of Project: Wildcat (construction markers)

http://img.photobucket.com/albums/v467/Reon_Skyridge/Rollercoasters/backyard%20coaster/IMG_0218.jpg This is the first part of the ride. You start at the top of the hill, then snake down it..

http://img.photobucket.com/albums/v467/Reon_Skyridge/Rollercoasters/backyard%20coaster/IMG_0221.jpg At the bottom of the hill, you go into this "tunnel" for a curve...

http://img.photobucket.com/albums/v467/Reon_Skyridge/Rollercoasters/backyard%20coaster/IMG_0222.jpg Dip between the tunnel and lift hill sections...

http://img.photobucket.com/albums/v467/Reon_Skyridge/Rollercoasters/backyard%20coaster/IMG_0223.jpg Lift hill area. My room's in the corner

http://img.photobucket.com/albums/v467/Reon_Skyridge/Rollercoasters/backyard%20coaster/IMG_0225.jpg Double dip section. The first half will be a steep twisting drop off the lift, and the second half will hug the ground...

http://img.photobucket.com/albums/v467/Reon_Skyridge/Rollercoasters/backyard%20coaster/IMG_0226.jpg At the bottom of the double drop, the track will turn around and go back up the hill, crossing under the lift...

http://img.photobucket.com/albums/v467/Reon_Skyridge/Rollercoasters/backyard%20coaster/IMG_0227.jpg Another view of the double dip section...

After the crossover, its just a straightaway back to the start...

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Project: Wildcat sounds amazing!

I do not have the money or the woodworking tools to make a backyard coaster. So, what's the projected cost for the finished coaster, $2,000,000? Have you made a model or Nolimits version of it yet to see if it will work?

And don't you have to get a building permit for something like this?

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^As I said, I'm constantly making revisions and taking suggestions...I might end up doing something like that freefall thing, since it's a good idea (minus the back spike since upsidedown airtime isnt the smartest idea...)

 

As for current building cost, how'd you get $2 million? I didnt think I'd really have to spend much on supports, since the ride never really leaves the ground other than the lift hill, bu thats only so the cross over has enough clearance space....For the sake of track, I might end up doing it the way "Thunder Wagon" was made (if its smooth). It looks like a more economic solution to using all those layers of plywood (or whatever kind of wood I need. I just say plywood because its bendable, and, when layered, can be quite sturdy.) I know this because I once built a Halfpipe out of the stuff...

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NCF, that is truly terrifying to behold.

R&E, that's a credit you definitely don't have!

 

I've seen photos of another backyard woodie called Elijah's Chariot, It's not as big as the one in OK, but it is also a complete circuit like that one.

It's actually in a small neighborhood park, but it has a station and lifthill!

 

I'm not positive exactly where it is, but there are bunches of pics if you know where to look!

 

Chris B

 

Josh Wozny who I believe is a member of this site and has been in numerous R and E segments had a hand in the creation of Elijah's Chariot.

 

It was built for a Church Event and then sadly taken down.

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Im not asking how much Thunder Wagon costs, I'm inquiring about how smooth it rides, for incase I chose to adopt your construction style...

 

Jared "New for '05/6: Project Wildcat" Becker

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yeah it's pretty smooth. You only feel the bumps when you ride over the track pieces. But you really have to use bigger wheel than I did, because TW lost it's speed right away...

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I made a Nolimits Version of my backyard coaster a while ago. I just turned the AutoCAD model into a 3ds object and put it into Nolimits. Then I made the track follow the path of the 3ds version. Here are some specs from AutoCAD:

 

height above ground = 19.5 ft. 5.9 m

radius of all curves (taken from top of rail) = 6.5 ft. 2.0 m

height of vertical freefall section = 10 ft. 3.0 m

width (when track is viewed as a W shape ) = 48.5 ft. 14.8 m

depth = 6 ft. 1.8

 

 

From Nolimits, I got these specs, which are probably very inaccurate:

max. speed = 20 mph 32 km/h

max pos. g = +3.1 g

max. neg. g = -1.9 g

 

The airtime hill with a 45 degree leadin angle is probably too intense.

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I made a Nolimits Version of my backyard coaster a while ago. I just turned the AutoCAD model into a 3ds object and put it into Nolimits. Then I made the track follow the path of the 3ds version. Here are some specs from AutoCAD:

 

height above ground = 19.5 ft. 5.9 m

radius of all curves (taken from top of rail) = 6.5 ft. 2.0 m

height of vertical freefall section = 10 ft. 3.0 m

width (when track is viewed as a W shape ) = 48.5 ft. 14.8 m

depth = 6 ft. 1.8

 

 

From Nolimits, I got these specs, which are probably very inaccurate:

max. speed = 20 mph 32 km/h

max pos. g = +3.1 g

max. neg. g = -1.9 g

 

The airtime hill with a 45 degree leadin angle is probably too intense.

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Sorry, I'm not going to upload my Nolimits file, because I have a lot of bugs to work out first, like the lift system and g-forces.

 

How does Blue Flash make it through that loop screw? The transition at the bottom looks so deadly! I wonder what the g-forces are like.

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  • 1 month later...

Found this website, where a summer school with kids 7-17 built a small

ride-on coaster as a project. Thought it might be of interest.

 

http://www.tinkeringschool.com/media/diary/20050716%20-%20saturday/index.html

 

Or http://tinyurl.com/c9hud

 

Also pictures of the backyard flume mentioned earlier are available @

 

http://freizeitparkweb.de/cgi-bin/dcf/dcboard.cgi?az=show_thread&forum=DCForumID21&om=520&omm=0&viewmode=threaded

 

Or http://tinyurl.com/apcw2

 

If you scroll through the posts you will find more photos and a couple of videos.

 

Peter

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I don't have any pics, and it's really not a real ride, but back in the day, I built a drum riser like Tommy Lee's from Motley Crue..you know the one he had on the Girls Girls Girls tour, that would rotate upside down and all around while he did a drum solo? I strapped my step sister in it and would flip her around and around and finally it collapsed...lol.

 

That was the lick

 

Tomizzle

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Also pictures of the backyard flume mentioned earlier are available @

 

http://freizeitparkweb.de/cgi-bin/dcf/dcboard.cgi?az=show_thread&forum=DCForumID21&om=520&omm=0&viewmode=threaded

 

Or http://tinyurl.com/apcw2

 

If you scroll through the posts you will find more photos and a couple of videos.

 

Peter

 

I've always loved that!

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