The LSTR TTC Challenge Sled!!!

[Dready]

Right I had a few spare minutes today so I knocked up a TTC Challenge Sled.

Rest assured that unladen it weighs 4.5kg!!! Charles losi doesn't stand a chance.
Pics
Better ones later the camera needs charging.
Its work in progress needs a bit of paint but the concept works.
The top part moves up when the sled is pulled forward.




That doesn't look to bad I here you say.
Sized next to a Hilux



There is a couple of things that I need.

Braided Fishing Line. Tough stuff with a high Break rate and no flex.
Also Lead or similar heavy metal the Top part is 130mm by 100mm the Lead Weights need to fit on the top of this.

[foxtrial]

I have both of those, 45lb carp line and some old lead flashing that could be cut/beaten into squares.
are going to make a box for weight?

how much of each are you looking for?

[BigTiny]

that thing is going to eat alot of motors, gear boxes, diffs and shafts....

[Dready]

Originally Posted by foxtrial

I have both of those, 45lb carp line and some old lead flashing that could be cut/beaten into squares.
are going to make a box for weight?

how much of each are you looking for?

There's a 10mm thick acrylic L shape fitted on top to stack the weight on



Well I just did a Quick test with two house bricks on a path
I got it rolling but couldn't get it anywhere near the top.
SO on dirt with a little gradient we should be ok.
Once no sorry! If you get it to the top the rear wheels lock up and your basically dragging the whole thing.

Traction will be key!!

We also need to thrash out some simple rules.
I was thinking:-

1) Measure a course out say around 15 metres
2) Time each run in the event of a draw (fastest time wins)
3) Sledge must be attached to the Frame ONLY.

Anything else I have forgotten

I'll bring it with me to Docklands on the 21st.

[Darkcrawler6x6]

Oh so do we have to work out something to hook it attach it to the frame?

[Darkcrawler6x6]

Neil that's a nice piece of work. All I am saying is Martin can I have an account?

[Dready]

Originally Posted by Darkcrawler6x6

Oh so do we have to work out something to hook it attach it to the frame?

You cant attach it to the axle thats not fair.
Has to be frame mounted.

I just wrapped a cord round a rear cross member it worked fine.
If you want to get serious a tow hitch low to the ground will be better.

[[email protected]]

I have a stopwatch at the track and will get some ground marking paint. Once I know how far it takes to pull the weight all the way to the top of the sled I'll mark out a track. Then it's time for a FULL PULL!

[Dready]

Originally Posted by [email protected]

I have a stopwatch at the track and will get some ground marking paint. Once I know how far it takes to pull the weight all the way to the top of the sled I'll mark out a track. Then it's time for a FULL PULL!

I best make it look pretty then!!

[willkrawl]

neil the sled looks great can't wait to try it out.
if i rig up a chain some how to the wraith would this be ok to use a hitch

[Dready]

Originally Posted by willkrawl

neil the sled looks great can't wait to try it out.
if i rig up a chain some how to the wraith would this be ok to use a hitch

Just not on the axle otherwise fine.

[willkrawl]

no probs

[UK_Andy]

The weight doesnt need to go up hill, it works by being closer to the skid plate, not by being higher

[Dready]

Originally Posted by UK_Andy

The weight doesnt need to go up hill, it works by being closer to the skid plate, not by being higher

Disagree.

The Weight moving uphill makes it even harder.
Because you have to pull the weight up as well as the weight pushing down.

Makes it doubley Harder.

[northernerbill]

Good work, btw the gradient also ensures its stays in its position, namely flat it could slide forward etc.