[quote name=Andrew Comrie-Picard
]
SLIDING FRICTION: The thing that sets rallying apart from most other types of driving is that we are racing under conditions of dynamic (sliding) friction instead of static (gripping) friction. This means that the fast way to drive on a slippery gravel or snowy road is very different than on a sticky race track, or even on the street. For example, if you stand on the brakes on a gravel road or on asphalt, a lot of the cars weight will transfer to the front wheels and all four wheels may lock up. On asphalt with gripping friction, the best technique is to brake as hard as possible while not locking up the wheels, using the tire within its (static) friction circle and maintaining directional control. But on gravel the static friction circle is very small (theres not much traction) and threshold braking in a straight line is not very effective. On gravel, it is much more effective to throw the car sideways, use the sidewalls of the tires as one part of the braking force, and feather the brakes for the other part of the braking force then youre using the tires in two directions simultaneously, and youre misaligning the rear wheels from the fronts as you slide so that they get more bite on a fresh surface too. So we dont just slide around to look cool sliding is, among other things, an effective traction tool under conditions of dynamic friction.
ולאלה שלא כל כך מסתדרים עם אנגלית (או פשוט אין להם כוח לקרוא):
מסתבר שזריקת תחת היא הדבר הטוב ביותר שקרה לנהגי ראלי ומי שאמר לכם אחרת טועה..
מכוון ש..
א. נותנת יותר אחיזה לנהג בכך שיש יותר מגע של הצמיג עם השטח.
ב. זה גורם לכך שלבלמים תיהיה יותר אפקטיביות.
ג. נותנן תחושת היגוי טובה יותר.
מאור.