rec.autos.simulators

by **Kevi** » Sat, 21 Feb 1998 04:00:00

>I've found that with setup changes I can get the car more loose. This
>brings up an interesting physics issue though. Logically, if you're
>ALREADY going very slowly and you have mechanical but not aero grip,
>and you apply throttle, the sequence of events is that first the rear
>wheels turn, and they either spin because they break free of friction,
>or they grip and thus push the car forward. My sense is that with
>that much torque, a gentle throttle application probably won't do that
>much to generate a push, but anything more than gentle should NOT
>cause a push but rather wheelspin. (Think of it as trying to push

I'm not sure I understand what you're saying here. Shouldn't it be easy to
get understeer in a low speed corner? When you accelerate (not to the point
of spinning the wheels), the weight transfers to the rear tires. The front
end gets light, and you get understeer.

--
Kevin
(Remove the "x-" prefix from my address in order to reply via email)

by **AKhan226** » Mon, 23 Feb 1998 04:00:00

Slowing down in the grass if not that bad, you mentioned that Ubisoft should
have modelled it that so that your car may go into a spin, that would be very
unrealistic, in an F1 race you never see a car going into a sping if the
driver lands up in the grass.

by **Randy Magrud** » Mon, 23 Feb 1998 04:00:00

>I'm not sure I understand what you're saying here. Shouldn't it be easy to
>get understeer in a low speed corner? When you accelerate (not to the point
>of spinning the wheels), the weight transfers to the rear tires. The front
>end gets light, and you get understeer.

Yeah, you're right. But I get the feeling sometimes that the work
involved in pushing the front tires against their will is too much for
the tires to generate without breaking loose and getting wheelspin
first, at least in a such a low gear/high revving F1 engine.

Randy
Randy Magruder
Contributing Reviewer
Digital Sportspage
http://www.digitalsports.com

by **Randy Magrud** » Mon, 23 Feb 1998 04:00:00

>Slowing down in the grass if not that bad, you mentioned that Ubisoft should
>have modelled it that so that your car may go into a spin, that would be very
>unrealistic, in an F1 race you never see a car going into a sping if the
>driver lands up in the grass.

Slowing down in the grass should be modelled the way everything else
is modelled...that is, if a front tire goes off you should be alright
unless you generate a slip angle sufficient to lose grip or cause the
wheel to slide. For a rear wheel, at low speeds under acceleration
you should get wheelspin, but at higher speeds you should be able to
roll right through it. Heck, think about the Indy 500 last year. At
speeds exceeding 200 mph Tony Stewart forced Arie Luyendyk onto the
infield grass (!!) and Arie drove through it without slowing down and
without spinning, but consider that he was in 6th gear and the
throttle wasn't creating high torque differentials at that point. So
he could drive through it and ease the car out without losing much
speed at all!

Randy

Randy Magruder
Contributing Reviewer
Digital Sportspage
http://www.digitalsports.com

by **John Walla** » Tue, 24 Feb 1998 04:00:00

On Mon, 16 Feb 1998 13:18:10 -0600, "Greg Cisko"

>Please. The game is allready the best F1 simulator for the PC
>period. The slow grass isn't that big of a deal to me since I
>don't exactly go off anyway. The modeling of reduced traction
>after you go off the track is also one of F1RS's best features.

The reduced traction is a good feature, but the stick grass is
certainly a bigger deal for me - I hated this in SODA too. Why not do
it properly and model the grip loss at the tyre which goes off-track,
rather than slowing down the whole car? Think about it, if you put
your right front onto the grass and it gets slowed down, your left
front should still be doing the same = spin. It doesn't, which means
that when you put one or two tyres off the road F1RS is slowing your
whole car down. I dislike that, and would rather be able to take the
risk and have to deal with the consequences.

It's a detail, and provided you stay wholly on the track it's not one
that will come into play, but it's an annoyance.

Cheers!
John

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