Traxxas xo-1!

[Thirdgen89GTA]

Originally Posted by suicideneil

Another XO-1 blow-over & crash:

[youtube]bCxHORILmfQ[/youtube]

That isn't air getting under the chassis. Thats called he hit a bump at high speed.

[suicideneil]

A bump the size of a pin head maybe- that is perfectly flat concrete afterall, not a cambered tarmac/ black-top side road; this is the issue we're talking about though, how unsuitable the XO-1 is for use anywhere besides a purpose-built track...

More lulz:

[youtube]5FWEYEyygCI[/youtube]

[youtube]ikUHtP7TVAA[/youtube]

[youtube]9S3CYlarHow[/youtube]

[Thirdgen89GTA]

The only video I consider a valid blow over you posted is the last one. And that one specifically states he did NOT use the splitter. You HAVE to use the splitter.

I don't see why people are complaining about the XO-1. 100mph is not joking around, and a 10.5lb car at 100mph and a flat pan chassis WILL lift if air gets underneath it. Traxxas didn't put the splitter there for no reason, and they tell you to USE IT. And if you hit a bump at 100mph it WILL catch air. It doesn't take much more than a centimeter or two extra gap to lift the car at 100.

So all this complaining about the XO-1 is stupid. Its not like the problems people are having are unexpected and have never been encountered. If you are gonna make a 100mph run dial down the dual rate, and take care with the throttle.

I crashed my truggy at 36mph the first time I attempted to roll into the throttle on 6S. It was a combination of cold/damp pavement, cold tires, and a throttle curve I hadn't mastered yet. Now I can handle the car on 6S with little trouble. I know how fast I can feed it throttle input before shocking the tires loose.

Now you see why I said none of the xo1s I raced even finished a race.the xo1 is a waste of money its a bad set up per iod y
ou pay 1000$ for a maserati body and plastic

Originally Posted by suicideneil

A bump the size of a pin head maybe- that is perfectly flat concrete afterall, not a cambered tarmac/ black-top side road; this is the issue we're talking about though, how unsuitable the XO-1 is for use anywhere besides a purpose-built track...

More lulz:

[youtube]5FWEYEyygCI[/youtube]

[youtube]ikUHtP7TVAA[/youtube]

[youtube]9S3CYlarHow[/youtube]

It lifted and destroyed at 40mph yep yep thats traxxas

[Thirdgen89GTA]

No, its actually easier to drive than a modified DM-1, Inferno GT, or otherwise vehicle would be. The aerodynamics package Traxxas created WORKs, but that doesn't mean Joe Dummy off the street can drive it. Nor does it mean that nothing can upset the car. Pavement imperfections, rocks, and the like will still cause problems for ANY similar scale car traveling at those speeds.

Properly driven, it works right. What would happen if you put your 100mph buggy in the hands of anyone on the street? Do you honestly think they could drive it like you can?

[wellby]

there is nothing wrong with the design of the car, all the videos show people that have little or no. control over the car. Most look like they have no idea what dual rate is, you can't just go from a car that tops out around 40 to a 100 mph car without a learning curve. Just. because the car is smaller physics still maters.

[RC-Monster Mike]

Originally Posted by wellby

there is nothing wrong with the design of the car, all the videos show people that have little or no. control over the car. Most look like they have no idea what dual rate is, you can't just go from a car that tops out around 40 to a 100 mph car without a learning curve. Just. because the car is smaller physics still maters.

I agree - the drivers in those videos looked pretty suspect on their 35mph "warm up". No RC this size will make it to 100mph without a smooth surface and a smooth driver, regardless of what is says on the box. Replacement parts should be popular at hobby stores! :)

[wellby]

Traxxas should of equipped it with a gyro for stability
mabey then people will stop bouncing from curb to curb. People also forget set up of the car is paramount at those speeds, alignment, ride hight, preload on shocks etc etc matter remember a 100mph is 700mph scale speed a damper low on oil will cause the car to be unstable and these are rtr cars do think that the person assembling these really care about proper set up?

[suicideneil]

Wrong- speed does not scale like size does- it's only doing ~270mph scale speed.

Like I said from the start though, this is the wrong car at the wrong time from traxxas; trying to market it as experts only ( by having an insane price... ) is stupid as rich idiots will buy it, thinking they can drive it down the street at 100mph without doing any work what so ever to the setup & radio. Heck, I have dual rates set up on my ~40mph MTs that run offroad when I do straight line runs...

[Thirdgen89GTA]

Originally Posted by suicideneil

Wrong- speed does not scale like size does- it's only doing ~270mph scale speed.

Like I said from the start though, this is the wrong car at the wrong time from traxxas; trying to market it as experts only ( by having an insane price... ) is stupid as rich idiots will buy it, thinking they can drive it down the street at 100mph without doing any work what so ever to the setup & radio. Heck, I have dual rates set up on my ~40mph MTs that run offroad when I do straight line runs...

Scale is an odd word in RC. What is a 1/10th scale TC a scale model of exactly? What model car? The basic rule of scale is that it takes 10 1/10th scale cars to equal the length of 1 full size similar type car. But with the different makes and models its a very broad term.

But if you want to fall into that category than a 1/7th scale car like the XO-1 at 100mph is doing a scale speed of 700mph. Its true and not true at the same time. Since at 100mph the aerodynamic forces acting on the car are 100mph forces, and not 700mph forces which is near Supersonic at sea-level.

Look at what happens to this famous clip of a Porsche GT1 flipping at Road Atlanta. I believe the turn is just coming out of the Esses after turn 5. Which means he likely isn't going much more than 140mph but its hard to tell with the camera zoom. But just like the last Traxxas video posted air got underneath the car, not much. But it was enough to act as a wedge and lift the nose more. The more it lifted, the more air pressure there was under the car and the more area the air pressure had to act directly against. Hence the GT1 took flight.

If the air can FLIP a full sized race car why is it so surprising that it can do the same to a 1/7th scale model traveling at 100mph?

[josh9mille]

Originally Posted by suicideneil

Wrong- speed does not scale like size does- it's only doing ~270mph scale speed.

http://rcvehicles.about.com/od/basics/f/scalespeed.htm

[suicideneil]

Wrong & wronger

http://scriptasylum.com/rc_speed/scalespeed.html

Like I said- speed does not scale like size; you can't multiply 100mph by 7 times just because the xo-1 is 1:7 scale, there is far more complicated maths involved in calculating the speed other than relative size...

Anyway, about that Squirrel fellow & a few of us guys not being able to point out why he is so wrong on numerous aspects of r/c, plus just being an arse-hat in general; he signed up to this forum a while back:

http://www.rc-monster.com/forum/member.php?u=1698

squirreltoyz@hotmaill.com
dilbeckb@yahoo.com

Feel free, to do with that information, what you please...

[josh9mille]

Originally Posted by suicideneil

Wrong & wronger

http://scriptasylum.com/rc_speed/scalespeed.html

Like I said- speed does not scale like size; you can't multiply 100mph by 7 times just because the xo-1 is 1:7 scale, there is far more complicated maths involved in calculating the speed other than relative size...

I have to disagree. Ive been all over google and not once did anything say that scale size multiplied by actual speed does not equal scale speed.

[BrianG]

Originally Posted by josh9mille

I have to disagree. Ive been all over google and not once did anything say that scale size multiplied by actual speed does not equal scale speed.

http://www.lmgtfy.com/?q=scale+speed