Can someone explain the physics of this?

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Old Apr 30, 2001 | 05:12 AM
  #1  
KavexTrax's Avatar
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Can someone explain the physics of this?

I mean did the earth's gravity shift akwardly or something?

<font face="Verdana, Arial" size="2">No need for speed
Inaugural Firehawk 600 called off amid drivers' concerns

FORT WORTH, Texas (AP) --
CART drivers refused to compete
Sunday at Texas Motor Speedway
over safety issues, saying G forces
almost twice as high as normal were
causing vision and hearing problems.
</font>
Full Story here:
http://sportsillustrated.cnn.com/mot...art_cancel_ap/

The full story doesn't elaborate about why
this occured on this particular track and conditions

I remember when there was no Indy league and everyone raced at the Indy 500...the year Mercedes came into town with their new engines for team Marboro (Al UnserJr./Emerson Fittipaldi/Paul Tracy) and the pole setters were doing like 246 mph...!
So I'm thinking the Indy track is designed very well (2.5 mile oval)
Wish I could see what the Firehawk600 looked like hmm maybe i'll turn on the tv sometime


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- Kvit -
2001 CL-P Monterey Blue, Parchment interior
Polarg BlHybrid M-6 Road lamps
Polarg/PIAA super white interior lights *bling bling*
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Blue Dragon Lady

Ferrari F355 Challenge Lap Times (Dreamcast):
-Motegi: 0'37"822 , sprint total 2'42"892
-Suzuka (short): 0'57"873
-Atlanta: 0'31"659

[This message has been edited by KavexTrax (edited 04-30-2001).]
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Old Apr 30, 2001 | 05:20 AM
  #2  
EricL's Avatar
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Well -- I don't know but, some guesses.

At one point I know they had some of the driving series remove the tunnels from under the cars. This was a number of years ago. When I heard the driver in the car, he was gulping air in the turns (at high speed where the aero. devices were creating huge suction and resultant downforce). These guys were doing such high Gs, that they were using straining techniques (like those used in air-to-air combat at high Gs). They would not be able to talk, and you could hear them gulping down air. You have to gulp in air at high Gs and strain like you haven't hit the pot in a few days!

If you have enough downforce from wings or tunnels, you are going to generate more than 1-g of downforce, so you can have more than 1-G of sideforce. So, even without banking (another can of worms), you can get very high Gs with certain tracks, speeds, and setups.

Did I miss something, or could you zero in on the particulars?

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Old Apr 30, 2001 | 05:25 AM
  #3  
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BTW -- do you know what 5 Gs of force is like -- you loose the blood to your head, and most Jet Fighters like the F-15, F-16, & F-18 will create such high G-forces, that they have put in ground avoidance systems to help recover the aircraft when the pilot looses consciousness. And the pilots have G-suits.

If you weight 100 lbs, at 5-Gs you weight 500 lbs. In a race car, on a banked turn, the g-force vector is being directed in the same axis as the driver's torso, so you have the blood being drained from the driver's head into their legs!

------------------
Silver 2001 CL-S with NAVI
  • Mud guards
  • Wheel locks
  • Toyo T1S 235/45ZR17-97W* Proxies on 17x8" SSR Competition wheels (48lbs less than stock)
  • Kevlar/SS Brake lines w/Brembos?
  • Comptech headers & sways
  • Silver AEM CAI
  • 9 coats of Zaino magic

[This message has been edited by EricL (edited 04-30-2001).]
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Old May 1, 2001 | 04:30 AM
  #4  
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<font face="Verdana, Arial" size="2">Originally posted by EricL:
BTW -- do you know what 5 Gs of force is like -- you loose the blood to your head, and most Jet Fighters like the F-15, F-16, & F-18 will create such high G-forces, that they have put in ground avoidance systems to help recover the aircraft when the pilot looses consciousness. And the pilots have G-suits.

If you weight 100 lbs, at 5-Gs you weight 500 lbs. In a race car, on a banked turn, the g-force vector is being directed in the same axis as the driver's torso, so you have the blood being drained from the driver's head into their legs!
</font>
cool ground avoidance systems huh?

Well, I just read a follow up story and it made sense now from what i said about the indy track versus this track:
http://sportsillustrated.cnn.com/motorsports/nascar_plus/news/2001/04/30/motors_sa fety_fish/

Seems like the Firestone track is shorter in distance (600 miles/250 laps = 2.4 miles/lap vs. 2.5 miles at Indy)
, banked steeper that allows the carts to run full speed through turns but here's the kicker:

<font face="Verdana, Arial" size="2">
CART officials said they were simply caught off guard by the impact of the track's 24-degree banking, which allows drivers to race at full throttle all the way around. Indianapolis Motor Speedway, by comparison, has only a 9-degree banking and no other track on the CART circuit is steeper than
18 degrees. </font>
So what now? I say have the cart drivers fitted with G suits and oxygen

That's a whole new ball game folks.

------------------
- Kvit -
2001 CL-P Monterey Blue, Parchment interior
Polarg BlHybrid M-6 Road lamps
Polarg/PIAA super white interior lights *bling bling*
HP Quantum 28 -- 31% metallic tint all around

Blue Dragon Lady

Ferrari F355 Challenge Lap Times (Dreamcast):
-Motegi: 0'37"822 , sprint total 2'42"892
-Suzuka (short): 0'57"873
-Atlanta: 0'31"659

[This message has been edited by KavexTrax (edited 05-01-2001).]

[This message has been edited by KavexTrax (edited 05-01-2001).]
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Old May 1, 2001 | 04:43 AM
  #5  
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High Gs really are altering the mind of military planner's -- they have the F-16's seat setup to allow the pilot to recline, this keeps the pilot's head nearer to the rest of his body.

Also, if your in a high-performance jet *and* you loose consciousness, there is a way for the altimeter and digital systems to recognize that the pilot has "taken a nap from the Gs." So, they are developing and working on ground avoidance systems that automatically pull the plane up if the pilot blacks-out.

Finally, the high banking just increases the G-forces. With a high enough banking, and enough speed, you could create any amount of Gs...

Did I miss something?

I also wasn't kidding about the grunting I heard, from one of the "shows" I was watching a few years back. I was sitting there going, "Jet fighter pilots are the only ones doing that... What the f*ck..."


------------------
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  • Toyo T1S 235/45ZR17-97W* Proxies on 17x8" SSR Competition wheels (48lbs less than stock)
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  • Comptech headers & sways
  • Silver AEM CAI
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[This message has been edited by EricL (edited 05-01-2001).]
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Old May 1, 2001 | 04:47 AM
  #6  
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Also, do you have any wonders on why the Air Force is so interested in remote piloted vehicles (besides not loosing a pilot over enemy territory)...

The current generation of jets will generator far more Gs than a pilot will stand. So, now what about thrust vectoring and more thrust-to-weight... Machines can stand more Gs that the human body.

I can just see the F1 and Cart drivers in G-suites and oxygen. It is either that or its back to the whole telemetry issue -- who's the driver. Sounds like a B movie plot.


------------------
Silver 2001 CL-S with NAVI
  • Mud guards
  • Wheel locks
  • Toyo T1S 235/45ZR17-97W* Proxies on 17x8" SSR Competition wheels (48lbs less than stock)
  • Kevlar/SS Brake lines w/Brembos?
  • Comptech headers & sways
  • Silver AEM CAI
  • 9 coats of Zaino magic
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Old May 1, 2001 | 05:07 AM
  #7  
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<font face="Verdana, Arial" size="2">Originally posted by EricL:
BTW -- do you know what 5 Gs of force is like...
</font>

of course i do. everytime i step on the gas in my type s.


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Old May 1, 2001 | 05:11 AM
  #8  
EricL's Avatar
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<font face="Verdana, Arial" size="2">Originally posted by superdds:

of course i do. everytime i step on the gas in my type s.


</font>

But, then you have such easy access to the Nitrous Bottle



------------------
Silver 2001 CL-S with NAVI
  • Mud guards
  • Wheel locks
  • Toyo T1S 235/45ZR17-97W* Proxies on 17x8" SSR Competition wheels (48lbs less than stock)
  • Kevlar/SS Brake lines w/Brembos?
  • Comptech headers & sways
  • Silver AEM CAI
  • 9 coats of Zaino magic
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Old May 1, 2001 | 05:13 AM
  #9  
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From: fremont, ca
<font face="Verdana, Arial" size="2">Originally posted by EricL:

But, then you have such easy access to the Nitrous Bottle

</font>
you're more than welcome to my nitrous, just make an appt. for an extraction or a root canal and it's on the house.



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Old May 1, 2001 | 05:21 AM
  #10  
EricL's Avatar
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Hmmm... I'll have to consider that offer.

Do your dental chairs have straps? Will you ask me if your CL-S is still safe?

Ever see the 'Marathon Man' with Hoffman and Olivier

------------------
Silver 2001 CL-S with NAVI
  • Mud guards
  • Wheel locks
  • Toyo T1S 235/45ZR17-97W* Proxies on 17x8" SSR Competition wheels (48lbs less than stock)
  • Kevlar/SS Brake lines w/Brembos?
  • Comptech headers & sways
  • Silver AEM CAI
  • 9 coats of Zaino magic
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Old May 1, 2001 | 06:25 AM
  #11  
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<font face="Verdana, Arial" size="2">Originally posted by EricL:
Also, do you have any wonders on why the Air Force is so interested in remote piloted vehicles (besides not loosing a pilot over enemy territory)...

The current generation of jets will generator far more Gs than a pilot will stand. So, now what about thrust vectoring and more thrust-to-weight... Machines can stand more Gs that the human body.

I can just see the F1 and Cart drivers in G-suites and oxygen. It is either that or its back to the whole telemetry issue -- who's the driver. Sounds like a B movie plot.

</font>
Actually it is. Macross Plus The movie..It's a japanese anime hehe
There's this one scene of an artificial pilot vs. umm somewhat human pilot...and they chase each other like MAD..turns out the AI (artificial intell.) wins


------------------
- Kvit -
2001 CL-P Monterey Blue, Parchment interior
Polarg BlHybrid M-6 Road lamps
Polarg/PIAA super white interior lights *bling bling*
HP Quantum 28 -- 31% metallic tint all around

Blue Dragon Lady

Ferrari F355 Challenge Lap Times (Dreamcast):
-Motegi: 0'37"822 , sprint total 2'42"892
-Suzuka (short): 0'57"873
-Atlanta: 0'31"659
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