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-   -   Slip angle and car control (https://www.ft86club.com/forums/showthread.php?t=67715)

CSG Mike 06-11-2014 03:08 AM

Quote:

Originally Posted by fatoni (Post 1790217)
i wonder if that is funny to anybody but us two. also, im kinda glad i have a miata despite what the sheriff thinks about them.

I really should have picked up his rolling chassis s2k :(

kiichiro 06-11-2014 11:45 AM

Thanks for that.

Scottemad123 06-11-2014 12:00 PM

We know where Mike works now thanks to another article on motoiq hehehe. Lucky SOB

fatoni 06-12-2014 12:03 AM

Quote:

Originally Posted by CSG Mike (Post 1790295)
I really should have picked up his rolling chassis s2k :(

if i picked up every car i think i should have picked up from that forum...

if i ever get faster than my miata will take me, i havent decided whether to just rotrex it, pick up an s2k or just jump straight to the vette. since im slow as shit, ive got time.

robot 06-12-2014 12:06 PM

Quote:

Originally Posted by CSG Mike (Post 1790294)
I've coached 100% visual drivers. 100% visual drivers are NOT outliers in this day and age... Gran Turismo drivers are all 100% visual. One of these visual drivers I coached was a GT Academy finalist.

This surprises me a bit. Do they just not let the vestibular system "warnings" interrupt their visual "its ok" signals?

I'm reminded of that SOW turn I posed about before (the bowl one). The g-forces pulling me into my seat make me uncomfortable. All of my previous driving experience tells me that when I get a big change in the Z axis feel (up and down) something bad is about to happen.

dradernh 06-12-2014 12:34 PM

Quote:

Originally Posted by robot (Post 1792646)
This surprises me a bit. Do they just not let the vestibular system "warnings" interrupt their visual "its ok" signals?

I'm reminded of that SOW turn I posed about before (the bowl one). The g-forces pulling me into my seat make me uncomfortable. All of my previous driving experience tells me that when I get a big change in the Z axis feel (up and down) something bad is about to happen.

I believe your vision is faster than your vestibular system at transmitting what you need to know at the limit. I think of it hierarchically, with visual inputs taking precedence over vestibular inputs in terms of initial effectiveness.

CSG Mike 06-12-2014 03:42 PM

Quote:

Originally Posted by robot (Post 1792646)
This surprises me a bit. Do they just not let the vestibular system "warnings" interrupt their visual "its ok" signals?

I'm reminded of that SOW turn I posed about before (the bowl one). The g-forces pulling me into my seat make me uncomfortable. All of my previous driving experience tells me that when I get a big change in the Z axis feel (up and down) something bad is about to happen.

They've been "trained" to go with what their eyes tell them. Unless the car starts to understeer or oversteer, everything is "okay" in their mind.

The guy learned shockingly fast; he was matching my hot lap times in 4 laps. As in, his 4th hot lap on track ever.

glamcem 06-12-2014 03:44 PM

like mentioned above great reflexes/talent also never really hurts IMHO ..

and speaking of great reflexes see below video and you can skip it to 3:31 but I would suggest you to watch the whole video if you can :) at 3:31 you will see the greatest save I've seen in my entire life and guess who's behind that wheel ;) as you can imagine it needs cat-like reflexes and some manberries to drive like that (for the reference I have some amateur rally car experience with small hatchback cars back in 90s since it's the "thing" for many European car enthusiasts :D and this driver has always been my idol, lol)

[ame="http://youtu.be/QtYsvcojzC8"]http://youtu.be/QtYsvcojzC8[/ame]

CSG Mike 06-12-2014 03:54 PM

Quote:

Originally Posted by glamcem (Post 1793114)
like mentioned above great reflexes/talent also never really hurts IMHO ..

and speaking of great reflexes see below video and you can skip it to 3:31 but I would suggest you to watch the whole video if you can :) at 3:31 you will see the greatest save I've seen in my entire life and guess who's behind that wheel ;) as you can imagine it needs cat-like reflexes and some manberries to drive like that (for the reference I have some amateur rally car experience with small hatchback cars back in 90s since it's the "thing" for many European car enthusiasts :D and this driver has always been my idol, lol)

http://youtu.be/QtYsvcojzC8

AWD/FWD lets you do things that seem crazy to RWD people.

[ame="http://www.youtube.com/watch?v=gPCGnkApnDU"]Jason Plato "What A Save" BTCC 2009 Round 1 Race 3 at Brands Hatch - YouTube[/ame]

robot 06-12-2014 03:58 PM

Quote:

Originally Posted by dradernh (Post 1792713)
I believe your vision is faster than your vestibular system at transmitting what you need to know at the limit. I think of it hierarchically, with visual inputs taking precedence over vestibular inputs in terms of initial effectiveness.

You may be correct: http://link.springer.com/article/10....221-009-1779-4 (linked from here: [ame="http://en.wikipedia.org/wiki/Vestibular_system"]Vestibular system - Wikipedia, the free encyclopedia[/ame])

It is apparently perceived as being slower, but may be faster to integrate (for things like image stabilization in head movement).

(All this discussion makes me wish I could get funding to do an experiment with this stuff)

Mike's comment about the GT academy student is very interesting. I'd love to pick his brain about the learning curve of different aspects of driving for this person. What did they pick up on quicker than others, what did they have trouble with?

dradernh 06-12-2014 05:33 PM

Quote:

Originally Posted by robot (Post 1793154)
You may be correct: http://link.springer.com/article/10.1007%2Fs00221-009-1779-4 (linked from here: Vestibular system - Wikipedia, the free encyclopedia)

It is apparently perceived as being slower, but may be faster to integrate (for things like image stabilization in head movement).

(All this discussion makes me wish I could get funding to do an experiment with this stuff)

Mike's comment about the GT academy student is very interesting. I'd love to pick his brain about the learning curve of different aspects of driving for this person. What did they pick up on quicker than others, what did they have trouble with?

In the context of Mike's experience with a talented visual learner, our local TT club has a member (Andre Gomes) who won the Skip Barber IndyCar Academy Shootout at Sebring the year after he made the GT Academy Finals in 2011. Another member, who I think is the club's best driver, also has had some success in GTA (not sure exactly what that was, as I don't follow GTA, but I understand that people who would know considered him to have real potential). These are their GTA 1-minute bios:

Andre Gomes
[ame="http://www.youtube.com/watch?v=T0FNokM63EA"]GT Academy: Andre Gomes - YouTube[/ame]


Nick Fontana
[ame="http://www.youtube.com/watch?v=k4CW4GN1QL4"]GT Academy: Nick Fontana - YouTube[/ame]


Nevertheless, in addition to having an exceptional visual cortex, a successful racer will have excellent kinesthetic awareness and skill, a lack of (unreasonable) fear at speed, comfort with high-Gs, technical knowledge, physical fitness, and all of the other factors possessed by drivers with talent.

@robot Re: Acquiring funding to study the subject, maybe it's possible?

Captain Snooze 06-12-2014 06:35 PM

What sort of world do these people live in? I see stuff like this and just want to cry at my own ability. I mean lack there of.
[ame="https://www.youtube.com/watch?v=HDQatnFUA3E"]Amazing Reactions by Dino Zamparelli in a Racing Car!! - YouTube[/ame]

Watching the poor quality clip I am guessing he is traveling faster than 15 km/h. Maybe even faster than 20 km/h.

EAGLE5 06-12-2014 06:46 PM

Quote:

Originally Posted by CSG Mike (Post 1793148)
AWD/FWD lets you do things that seem crazy to RWD people.

Jason Plato "What A Save" BTCC 2009 Round 1 Race 3 at Brands Hatch - YouTube

I've heard people say Plato cannot drive well. Idiots.

xwd 06-12-2014 07:29 PM

Yeah some people just have a knack and feel for a car that others don't. Sadly I'm not one of those people who can almost instantly recognize a car's nature and feedback, it takes me some time.

I look at some of the autocross folks like Bryan Heitkotter, who won GTA a few years ago and has gone on to set poles, win races, etc. He can basically jump in almost any car at an autocross and beat very good people, even national champions, in their own cars in a matter of a couple of runs. The Solo driver of the year last year Tom O'Gorman, is 22 years old and is the same way whether it's high HP cars or low HP cars.

Peter Cunningham used to autocross with us in Milwaukee and he was the same way. He beat a soon to be national champ in his own car at an event within 2 runs having never driven the car before. Sometimes it's talent and other times experience.


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