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Street Luge (1208 Posts)
Topic Street Luge Info
On 2/18/2002 hc wrote in from (65.184.nnn.nnn)

being checking out this guy's page. lean to steer trike.
check out info on cg/road holding.

http://www.uct.ac.za/depts/psychology/bok/trike.html (scroll down)

 
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On 2/14/2002 Duane wrote in from (68.15.nnn.nnn)

A slight rake has some merit. As air goes under a flat surface, the depth of the "shear layer" of air grows, this is the air that is moving near the luge, but not moving near the ground. Too much rake and air will flow from the sides to fill the vacuum created by the extra space under the rear, this causes a lot of drag. The best is to have a rounded bottom (the luge, not the rider) to get a low cg but avoid a large shear layer underneath, slight rake. I used to use disk brakes but they will lock the wheels and flat spot your tires, or even pop over-inflated pnuematic tires. I use pnuematic drag brakes now.

 
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On 2/14/2002 hc wrote in from (65.184.nnn.nnn)

oops, that 'I' not it!

 
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On 2/14/2002 hc wrote in from (65.184.nnn.nnn)

leo, darren lott mentioned his 'raked' luge in the book saying it's more aero. (but it don't really buy it)

 
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On 2/14/2002 hc wrote in from (65.184.nnn.nnn)

duane, sounds like you want to race!
fyi, Randal has entered in this race in a full fairing(open top) luge, they made him put on brakes, he's got these cute little disk brakes in the backs!

 
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On 2/14/2002 Duane wrote in from (68.15.nnn.nnn)

I'd smoke those Sandhill turkeys. They are using pnuematics which are slow compared to good rubber or urethane. Pnuematics can be reasonable fast if pumped up to 200+ psi, which I would bet none of them are doing.

 
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On 2/14/2002 Leo wrote in from (146.18.nnn.nnn)

just an idea that crossed my mind, whats the pros and cons of having bigger wheels in the back and smaller wheels at front of an street luge, lets say 101mm abec11 back and 83mm abec11 up front?

would the lower front and higher back enhance the aerodynamics? or i shoudl say the lugedynamics?

leo

 
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On 2/13/2002 hc wrote in from (65.184.nnn.nnn)

cool pics chris. there are some more at the exkate site.

duane, check this, sand hill challenge gravity car race, put on by venture capitalists, corporate racers...

http://www.philwood.com/specialprojects.htm

 
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On 2/13/2002 Chris Chaput wrote in from (63.168.nnn.nnn)

Try Louie himself. He's the mad scientist behind the electric skateboards, streetluges, go-karts and dragsters.

 
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On 2/13/2002 hugh r wrote in from (205.216.nnn.nnn)

So who has the contacts over at Exkate? I know that about a year or so ago, they had several electric luges sitting in the back... what would it take to get a field trip going? HR

 
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On 2/13/2002 Found Them! wrote in from (63.168.nnn.nnn)

 
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On 2/13/2002 Chris Chaput wrote in from (63.168.nnn.nnn)

hc, I'll see if I can find the pictures of the time that my friend and manager of the Dominguez Hills velodrome towed my streetluge and me around using a motorcycle. It's a cool feeling to have that much traction at over 50mph in a hard turn.

The downside is that you get the occasional arm-stretcher because of the slack created, just like waterskiing.

I think that the electric streetluges on flat tracks or in a velodrome would be a cool new type of racing. It would be silent and so just about any area of any city could have a track.

 
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On 2/13/2002 hc wrote in from (65.184.nnn.nnn)

more cool weird stuff ;-)

electric luge racing
http://www.exkate.com/velectric.htm

hmmm, since i am in SJ and there is a velodrome nearby...

we also have an indoor gokart racing here. would be fun to get all the lugers in there for a race.
http://www.speedring-kartracing.com/

(thx mat for the tip)

 
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On 2/12/2002 hc wrote in from (65.184.nnn.nnn)

another co. with similar ideas
www.microkart.com (listed as gravity, no info)

I would be interested in just taking engineless gokart down a hill to see what its like.

If anyone have good pics of the insides of gravity formula one vehicles, send them to me.

my wackyboard page has a couple of pics of gf1

 
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On 2/12/2002 hc wrote in from (65.184.nnn.nnn)

thx, chris, i still need to play with wedges, positioning, etc. (riding a haka board with rii flipped, blue/blk bushings, no wedges)

But, for me, there seems to be a night and day difference between the ride quality of a buttboard vs a luge. (marc, our local buttboard pro, seems to be grabbing his pegless luge everytime after he built it couple of month ago.) Also it seems like a luge is actually better for beginners due to its smoother handling.

I'll probably just make a longer and wider buttboard deck next. (a lugeboard?) maybe drop it too.

regarding the steerable luge idea. duane, i was thinking of something cheap and small, like a buttboard with steering control. (anyhow, i want to take a look at that drawing. Also don't those vehicles that you built only go straight. ever bombed those on a curvy road?)

Anyways, just thinking of ways to make the turns more effortless. (this reminds me of hangliding vs gliders, one is controlled by weight shifting (lots of work), the other is all done with a stick.

 
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On 2/12/2002 Chris Chaput wrote in from (63.168.nnn.nnn)

HC, I'd work the bugs out your buttboard and riding style. Once you get it dialed in, a buttboard is an incredibly fun fast and safe ride. We go between 60 and 70mph without any problems with stability.

I'm not trying to discourage you from other forms of downhill excitement, but give buttboarding a chance.

What do you ride? Concave? Flat? R-II B's? Luge trucks?

 
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On 2/12/2002 Duane wrote in from (68.15.nnn.nnn)

I could send you a hand-drawn blow-up of the steering system, very smooth and the mechanical advantage of the steering pivot is the key to smooth steering, and resisting bump steer. No suspension, though, suspensions are for pussies.

 
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On 2/12/2002 Duane wrote in from (68.15.nnn.nnn)

hc, I've been building that kind of "luge" for near 20 years. The steering is like a stroker, except the tie rods are connected to a steering pivot, which has two handles attached. Mine are head-first, but the handles can extend backwards from the pivot just as well as forwards. The key is you can dial in and adjust the steering ratio (amount of push / pull on handles to achieve a certain amount of steering). The tie rods have LH / RH thread spherical joints on opposite ends so alignment can be performed without disassembly. Alignment of the wheels is critical. You should plan to have the wheels out wide enough for your legs to fit between, super low. Lots of machining needed to pull this off, can get expensive.

 
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On 2/11/2002 hc wrote in from (65.184.nnn.nnn)

I been trying out buttboarding and luge this year. It's beem interesting, but i am kinda dissappointed with the performance of my buttbuttboard, the 12" wide deck makes cornering a chore and the short wheelbase feels jittery, taking the fun out of going fast. A luge overall seems to be much more enjoyable at higher speeds.

Anyways, i am starting to think about building a non lean-to-steer luge, most likely handsteered. Anyone have info or experience or thoughts on these kind of luge, lets hear it.

http://www.morehugh308.homestead.com/files/bp25.jpg

www.dr-gofast.com (gravity formula one)

see also my wacky board page (www.geocities.com/sk8sanjose)

 
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On 2/8/2002 hc wrote in from (65.184.nnn.nnn)

scabs, it's biker and todd lehr in the rollerball.
I was watching them in SF when they were shooting, very cool.

 
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On 2/8/2002 Chris Chaput wrote in from (63.168.nnn.nnn)

The Streets Of SF Streetluge Event has been held annually for the past 3 years and will be held again this year in July.

The 83' mark set by Jeffrey Schonzeit in 2000 was equalled by Jeffrey again in 2001. I was a close second with 82 1/2' in 2000 and I beat that mark with an 86 1/2' jump in 2001. This year Waldo Autry won by stunning the field with an awesome 94' jump! Once again I was the bridesmaid instead of the bride.

Yes, major whiplash. The prize money for my 1st and 2nd place in the 4-man and 6-man races went straight to my chiropractor!

Click on the image below for a larger version.

 
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On 2/8/2002 Justin aka Nemesis wrote in from (207.66.nnn.nnn)

Though i haven't touched up on this in awhile, im still looking for Lugers who live in New Mexico or close by maybe in arizona or colorado that would like to ride down here. So far ive only got a handful of people here but i cant imagine since ive been on the news and stuff, there still isnt anybody here picking up on it yet besides my team and a few peeps i already know of. If u do ride here let me know and i will set u up with some great luge runs.

Justin

 
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On 2/8/2002 Scabs wrote in from (66.20.nnn.nnn)

I was watching the morning show "Live with Regis" and Chris Kline came on promoting his new movie "Rollerball" and he shot out a kudos to Biker Sherlock for teaching him how to luge. They also showed a clip from the movie with two guys luging down the streets. Was Biker one of them? Who was the other guy?

 
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On 2/8/2002 rich wrote in from (62.254.nnn.nnn)

i just saw a big air comp on steet luges in SF on the extreme sports channel. the record jump was 83 ft and the riders looked like they were collecting a ton of whiplash when they landed. is this kind of thing a regular event at street luge events or was this a one off? r..

 
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On 2/7/2002 hc wrote in from (65.184.nnn.nnn)

mario, steve is refering to the ride after the red bull sf event.

 
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