jumps

[jimmy]

ok, so not everyone went to the euros this year, but if you did you'd notice the great jumps there which really made the track interesting.

So, who is up for some track work at batley some time ? The double at batley is silly, its just a full-blast hold-on-and-prey job. turn it into one part of a bigger, slower double or triple jump (or even quad!) . Something that cant be ramped at full speed and needs a little timing to get maximum speed through the section.

I dont mind the table top too much but the wheels have no part in jumping that ramp. It is purely the chassis smacking into the face of the jump which sends the car airborne! Give it a smoother take off, flat top (no step) and smoot down slope. nothing much higher than it is now, just nicer to race on.

Any thoughts ? If we went ahead and did some work to the jumps, any ideas how ?!?

[Oscar]

I'd be prepared to assist

[jimmy]

Any idea what we could make the jumps from ? I mean, if they are permenant they need to be pretty solid things.

[PaulRotheram]

Astro and dirt I imagine but at good angles, thats what all the Southport bumps and middle jump is made out of and they are holding up pretty well.
Did you get a chance to see what the Euro jumps were made with.. under the carpet?

I know on a few yank forums i've seen a link ponder around for making motocross jumps, not the same as our class but apparently if its scaled down it can be made in to a pretty useful guide.

[craigosh]

If you want to have them as dirt jumps jim try and use soil with a good bit of clay in, it'll hold together better and the trannys wont get to cut up.

Shape wise, probably want doubles to be rounded but that doesnt work so well when they are large so i prefer to square off the lip of the take off and round out the landing a little. Table tops i'd square off the lips otherwise they are to easy and just mounds.

Shape of the takeoffs i'd say they should be straight for the last 2 thirds of them, with the first third transitioned for a nice smooth entry. Landings the same really, but with a shallower angle and less transition to flat. Slight anti-transitioned landings are a bit easier to land on. Kickups at the lip are a bad idea really in general, they will either kick the car nose up or clip the rear and send em nose down..

It all depends Jim on how tech you want to make them.

Motorcross dimensions would work fairly well but i'd make the takeoffs a little steeper.

[Richard Lowe]

I'd def be up to help with some more jumps

We need a table top after the big double, another double would be good there but you'd get plenty of snappers from people trying to clear it and landing chassis first on the peak of one of the jumps.

A small double on the straight before the table top would reduce the speed we hit it. Personally I like the table top as it is, there's a definate knack to landing the downslope. If we made the up ramp less violent the cars wouldn't go as high so landing it properly wouldn't be as effective.

We could do with some jumps toward the back of the track, although nothing too difficult with it being far away.