what to do in case of brake failure?
03-19-2019, 01:21 AM
#16
Lost brakes
1- Don't forget to try and pump your brakes if you get no brakes on initial application, you may be able to pump up enough pressure to get things stopped safely without having to take more drastic measures.
2- Some cars also have a real handbrake that may be helpful to some degree even if the main brakes are not working
3- Now think about more drastic measures, where is the safest place to go and how to arrive there
Greg Phillips
2- Some cars also have a real handbrake that may be helpful to some degree even if the main brakes are not working
3- Now think about more drastic measures, where is the safest place to go and how to arrive there
Greg Phillips
03-19-2019, 09:04 AM
#17
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03-19-2019, 09:19 AM
#18
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Lee’s in-car showed pretty much a complete loss of pressure. He tried to pump, just nobody home. Glad he wasn’t hurt, it was a big one.
03-19-2019, 09:46 AM
#20
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It's very similar to an induced tactical 180 you see in the movies and we trained on in VIP protection and motorcade operations. Yes, in the case of T17, a brief super quick 1/4 turn of the wheel left and then a super quick aggressive turn right. When the vehicle has rotated 90 degrees, STRAIGHTEN THE WHEEL fast. This is how you prevent a roll over.
03-19-2019, 12:13 PM
#21
I'm in....
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1- Don't forget to try and pump your brakes if you get no brakes on initial application, you may be able to pump up enough pressure to get things stopped safely without having to take more drastic measures.
2- Some cars also have a real handbrake that may be helpful to some degree even if the main brakes are not working
3- Now think about more drastic measures, where is the safest place to go and how to arrive there
Greg Phillips
2- Some cars also have a real handbrake that may be helpful to some degree even if the main brakes are not working
3- Now think about more drastic measures, where is the safest place to go and how to arrive there
Greg Phillips
I had a front pad explode on initial application at 17 one time. At first I thought they were totally gone but after what felt like an eternity, I got enough back to get it slowed enough to turn. Luckily there is a lot of tarmac out there so you have some options. In other turns, the opportunity to throw it sideways while still on the track goes by really quick.
03-19-2019, 12:31 PM
#22
The Penguin King
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Where am I
Do I have enough time to spin the car
What will be my orientation when I hit gravel
What will my orientation when I hit the barrier
OK,spin it
And finally "wow did I get lucky"
Amazing how fast the brain works when it really has to.
03-19-2019, 01:14 PM
#23
Rennlist Member
Originally Posted by mglobe
Yup, and in general, I'd say a side impact with a barrier is the least preferable choice. Our safety systems work best when we hit head-on or ***-end-first. When I lost my brakes at COTA, in about a half second, I went through a progression thoughts:
Where am I
Do I have enough time to spin the car
What will be my orientation when I hit gravel
What will my orientation when I hit the barrier
OK,spin it
And finally "wow did I get lucky"
Amazing how fast the brain works when it really has to.
Where am I
Do I have enough time to spin the car
What will be my orientation when I hit gravel
What will my orientation when I hit the barrier
OK,spin it
And finally "wow did I get lucky"
Amazing how fast the brain works when it really has to.
03-19-2019, 01:32 PM
#24
Yup, and in general, I'd say a side impact with a barrier is the least preferable choice. Our safety systems work best when we hit head-on or ***-end-first. When I lost my brakes at COTA, in about a half second, I went through a progression thoughts:
Where am I
Do I have enough time to spin the car
What will be my orientation when I hit gravel
What will my orientation when I hit the barrier
OK,spin it
And finally "wow did I get lucky"
Amazing how fast the brain works when it really has to.
Where am I
Do I have enough time to spin the car
What will be my orientation when I hit gravel
What will my orientation when I hit the barrier
OK,spin it
And finally "wow did I get lucky"
Amazing how fast the brain works when it really has to.
Interesting theory, perhaps the fear and adrenaline charged brain really does speed up compared to normal and since the normal state is the usual state, memories from that sped up state feel slow. I dunno.
-Mike
03-19-2019, 02:07 PM
#25
Burning Brakes
One thing i learned from my wreck was planning.
making the correct choices...
drive it while you can...
once your a passenger....aka no input is going to help you.. and you are literally on a ride......you need to own it.
protect the body. Hug yourself and Cross you hands and feet
worst feeling ever but i think it saved me plenty of injury, but i hated the feeling that choice gave me.
making the correct choices...
drive it while you can...
once your a passenger....aka no input is going to help you.. and you are literally on a ride......you need to own it.
protect the body. Hug yourself and Cross you hands and feet
worst feeling ever but i think it saved me plenty of injury, but i hated the feeling that choice gave me.
03-19-2019, 05:59 PM
#26
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Yup, and in general, I'd say a side impact with a barrier is the least preferable choice. Our safety systems work best when we hit head-on or ***-end-first. When I lost my brakes at COTA, in about a half second, I went through a progression thoughts:
Where am I
Do I have enough time to spin the car
What will be my orientation when I hit gravel
What will my orientation when I hit the barrier
OK,spin it
And finally "wow did I get lucky"
Amazing how fast the brain works when it really has to.
Where am I
Do I have enough time to spin the car
What will be my orientation when I hit gravel
What will my orientation when I hit the barrier
OK,spin it
And finally "wow did I get lucky"
Amazing how fast the brain works when it really has to.
Our cars are made to best protect us in a front on collision. Belts stretch, body part crumple. If there is a gravel or sand trap, then all the better for going in straight.
If you go off the track sideways fast a trap will more likely roll you. If you hit the wall (hard) sideways it will HURT you. So, if you are going to go off and hit a wall, the best odds are to nose in.
Backing in is also fine, but I just did that at VIR. Came off track with a dry track and wet grass. I came across track and expected to scrub some speed, but not much. Only thing I managed to do is line up so that I backed in. Did everything I should have including grabbing the belts and making sure my head was resting against the back of the seat. When I hit, the seat flexed enough that the seat hit the cross bar behind me (997 cup). That rang my bell more than I expected. It was September and I can still feel it.
Thanks
Ed
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03-19-2019, 08:50 PM
#27
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Is this taught at PCA car control clinics?
I have seen videos of the car control clinic at Lime Rock, it seems to be for the most part on a circular wet pad.
Attemps at self instruction in an empty parking lot, can't really duplicate the speed. In addition, the lack of proper instruction.
Any suggestions are appreciated.
-David
I have seen videos of the car control clinic at Lime Rock, it seems to be for the most part on a circular wet pad.
Attemps at self instruction in an empty parking lot, can't really duplicate the speed. In addition, the lack of proper instruction.
Any suggestions are appreciated.
-David
03-19-2019, 08:53 PM
#28
Rennlist Member
Originally Posted by TXE36
Interesting theory, perhaps the fear and adrenaline charged brain really does speed up compared to normal and since the normal state is the usual state, memories from that sped up state feel slow. I dunno.
-Mike
-Mike
03-20-2019, 08:26 AM
#29
Is this taught at PCA car control clinics?
I have seen videos of the car control clinic at Lime Rock, it seems to be for the most part on a circular wet pad.
Attemps at self instruction in an empty parking lot, can't really duplicate the speed. In addition, the lack of proper instruction.
Any suggestions are appreciated.
-David
I have seen videos of the car control clinic at Lime Rock, it seems to be for the most part on a circular wet pad.
Attemps at self instruction in an empty parking lot, can't really duplicate the speed. In addition, the lack of proper instruction.
Any suggestions are appreciated.
-David
If you want to practice flicking the car around while controlling where the car is going, find yourself some time in a sim, preferably with a VR headset so you can whip you head around to see where you want to be going. Head down a main straight and see if you can destabilize or spin the car without veering into a side barrier.
Last edited by Difool; 03-20-2019 at 08:44 AM.
