Originally posted by: ultimatebob
Originally posted by: tasmanian
SPIN OUT!!!!!!!!!!!!!!!!!!
Aren't those roof flaps neat? Ten years ago, that boy would have went for a wild ride.
Roof Flaps Roof Flaps
In 1994, NASCAR introduced roof flaps -- a safety device designed to keep cars from going airborne and tumbling over the track. Before this, when the cars spun out at high speeds (more than 195 mph / 324 kph), they would often fly into the air once they had rotated about 140 degrees. At this angle, the car takes on a shape that interacts with the wind very much like a wing.
When the car has spun around 140 degrees, its shape is very similar to that of a wing.
If the speed of the car is high enough, it will generate enough lift to pick up the car. To prevent this, NASCAR officials developed a set of flaps that are recessed into pockets on the roof of the car. Through wind-tunnel testing, NASCAR determined that the area of lowest pressure is at the back of the roof, near the rear window.
When the car reaches an angle at which it generates significant lift, the low pressure above the flaps sucks them open. The first flap to open is the one oriented at a 140-degree angle from the centerline of the car. Once this flap opens, it disrupts the airflow over the roof, killing all of the lift. An area of high pressure forms in front of the flap. This high-pressure air blows through a tube that connects to the pocket holding the second flap, causing the second flap to deploy. The second flap, which is oriented at 180 degrees, makes sure that the car continues to kill the lift as it rotates. After the car has spun around once, it has usually slowed to the point that it no longer produces lift.
The roof flaps keep the cars on the ground as they spin. This allows the skidding tires to scrub off some of the speed, hopefully allowing the driver to regain control. If not, at least the speed is reduced before the crash.
I'm thinking more than that.Originally posted by: SmoochyTX
I'll guess we'll hear it at least 15 times. *sigh*
Originally posted by: SmoochyTX
The roof flaps are to help keep the car on the ground in cases like this so that they don't go airborne.Originally posted by: tasmanian
Originally posted by: ultimatebob
Originally posted by: tasmanian
SPIN OUT!!!!!!!!!!!!!!!!!!
Aren't those roof flaps neat? Ten years ago, that boy would have went for a wild ride.
No they made it so he didnt slam into the wall...
Originally posted by: tasmanian
Originally posted by: SmoochyTX
The roof flaps are to help keep the car on the ground in cases like this so that they don't go airborne.Originally posted by: tasmanian
Originally posted by: ultimatebob
Originally posted by: tasmanian
SPIN OUT!!!!!!!!!!!!!!!!!!
Aren't those roof flaps neat? Ten years ago, that boy would have went for a wild ride.
No they made it so he didnt slam into the wall...
Flipping and going airborne compared to slamming in a wall. Bolth are awsome.
Originally posted by: heathertre
Originally posted by: tasmanian
Originally posted by: SmoochyTX
The roof flaps are to help keep the car on the ground in cases like this so that they don't go airborne.Originally posted by: tasmanian
Originally posted by: ultimatebob
Originally posted by: tasmanian
SPIN OUT!!!!!!!!!!!!!!!!!!
Aren't those roof flaps neat? Ten years ago, that boy would have went for a wild ride.
No they made it so he didnt slam into the wall...
Flipping and going airborne compared to slamming in a wall. Bolth are awsome.
Man..I miss the good old days when a car would hit the infield grass and flip over and over again until nothing was left of the car but the roll cage. Wrecks use to be often and awesome before all the safety precautions.
Originally posted by: heathertre
Originally posted by: tasmanian
Originally posted by: SmoochyTX
The roof flaps are to help keep the car on the ground in cases like this so that they don't go airborne.Originally posted by: tasmanian
Originally posted by: ultimatebob
Originally posted by: tasmanian
SPIN OUT!!!!!!!!!!!!!!!!!!
Aren't those roof flaps neat? Ten years ago, that boy would have went for a wild ride.
No they made it so he didnt slam into the wall...
Flipping and going airborne compared to slamming in a wall. Bolth are awsome.
Man..I miss the good old days when a car would hit the infield grass and flip over and over again until nothing was left of the car but the roll cage. Wrecks use to be often and awesome before all the safety precautions.
Originally posted by: ultimatebob
Originally posted by: heathertre
Originally posted by: tasmanian
Originally posted by: SmoochyTX
The roof flaps are to help keep the car on the ground in cases like this so that they don't go airborne.Originally posted by: tasmanian
Originally posted by: ultimatebob
Originally posted by: tasmanian
SPIN OUT!!!!!!!!!!!!!!!!!!
Aren't those roof flaps neat? Ten years ago, that boy would have went for a wild ride.
No they made it so he didnt slam into the wall...
Flipping and going airborne compared to slamming in a wall. Bolth are awsome.
Man..I miss the good old days when a car would hit the infield grass and flip over and over again until nothing was left of the car but the roll cage. Wrecks use to be often and awesome before all the safety precautions.
Yeah, you don't see a lot of wrecks like this anymore.
Originally posted by: tasmanian
Originally posted by: ultimatebob
Originally posted by: heathertre
Man..I miss the good old days when a car would hit the infield grass and flip over and over again until nothing was left of the car but the roll cage. Wrecks use to be often and awesome before all the safety precautions.
Yeah, you don't see a lot of wrecks like this anymore.
Awsome.
Originally posted by: SmoochyTX
The first NASCAR race I saw was that Dayton 500 (I think it was 1979) that had the fight between the Alison brothers and Cale. Been hooked ever since.
Caution's out.
Originally posted by: LS20
ernie irvan from salinas > *
.....when i used to watch nascar
Originally posted by: JulesMaximus
Boogity Boogity Boogity? WTF... That is perhaps the dumbest thing I've ever heard a sports broadcaster say...really. If NASCAR is ever going to shake the Cletus the Slackjawed Yokel image they need to get rid of the moron who says that...or make him stop.
Originally posted by: KLin
Holy crap, Montoya's moved up to 32!!
Originally posted by: jmebonner
Originally posted by: JulesMaximus
Boogity Boogity Boogity? WTF... That is perhaps the dumbest thing I've ever heard a sports broadcaster say...really. If NASCAR is ever going to shake the Cletus the Slackjawed Yokel image they need to get rid of the moron who says that...or make him stop.
Won't happen.
Originally posted by: ultimatebob
Originally posted by: jmebonner
Originally posted by: JulesMaximus
Boogity Boogity Boogity? WTF... That is perhaps the dumbest thing I've ever heard a sports broadcaster say...really. If NASCAR is ever going to shake the Cletus the Slackjawed Yokel image they need to get rid of the moron who says that...or make him stop.
Won't happen.
DW is always good for some one liners during the race. My favorite so far has been "Look at Dale Jr's hands going to from right to left... That's how I play golf!"