Saturday, June 11, 2011

Driving School. The all-terrain and overcome obstacles

Sub-terrain means the movement beyond the paved roads - but muddy or snowy country roads or even on virgin soil. In order to successfully move into off-road conditions, you must first make an exploration of ways. It must take into account clearance vehicle track width, turning radius, the base and corners of front and rear overhang car. There are some general rules to overcome the off-road sections. Sandy areas with a track overruled on track, if it allows the ground clearance vehicle. If the track deeper clearance, then - it should fill the branches or the ground. This is the best way, than going on a sandy powder. Wet clay sites are best to go around. If there is no detour, and the section of the paved track, but need to move it. Deep tread collapses hay, twigs, dry soil. Sites with no ruts or with fine-gauge, coated with a layer of water, after a preliminary test for the absence of wells are overcome with the move to the second and third gears. Arise in this case the car drifts are eliminated in the usual way - the termination of causing the skid and turn the steering wheel in the direction of the skid. Moving on unconsolidated ground wet, the road should be laid on the grass cover, avoiding places, deprived of their turf. Lowlands, covered with coarse grass, and with glimpses of water, it is necessary to go around, as they usually impassable. When driving a car off the road, especially on soft soil, mud, sand greatly increased rolling resistance of wheels, so car arrangements operate under high loads. To avoid breakage cardan gear and semi all management operations clutch and gearbox are performed effortlessly, smoothly. How best to overcome road obstacles and driving off-road? Minor road obstacles (rails, track) must be overcome at a certain angle so as to front-wheel moved them asynchronously, and in turn. To reduce the impact force on the wheels of obstruction should be reduced to limit vehicle speed, and at the time of the meeting with an obstacle off the clutch, then clutch smoothly switched to the final overcoming of obstacles. Major obstacles (excavation, ditches and mounds), not to create harmful distortions of the car body must be addressed only at a right angle. Approaching him, you must slow down, slow down and turn on a lower gear. When the front wheels sank into the groove, or climb a hill, we must add momentum of the motor shaft, opening the throttle valve carburetor, and transfer through the barrier rear-wheel drive vehicle. Drive over the hill becomes impossible if part of it between the front and rear wheels is higher than the ground clearance vehicle. Overcoming the recesses (channels) is limited to the value of the front and rear angles of approach. Overhang angle - the angle, a beam which is parallel to the earth's surface, while another concerns a time-wheel and bumper cars. The greater the angle of approach, especially in the deeper recess can go off the car without hitting the slopes for its bumpers. Sometimes because of the small ground clearance and lack of angles of approach may not be able freely to overcome obstacles. In such cases, should be cut with a spade steep slopes of ditches, craters, and the top of hillocks. For off-road, blurry, snowy roads often have to artificially raise the cross-car. The standard means of improving the patency of the vehicle (snow chains, jumper on the wheels, etc.) give good results only for their skillful use. On wet, clayey, sandy soil, snow chains and a jumper at high speeds the wheels, like the teeth of the cutter, cut out the track and the car "sits" at the bottom of the body or the bridges. The same pattern is observed when using one or two jumpers on the drive wheels. With most of the circumference of wheel slide on the ground, and momentary contact with the ground jumper just rips the ground from under the wheels, not allowing movement of the car. To prevent samozakapyvanie wheels, you can not give them great speed and prevent slippage. Need to provide a continuous tractive effort, moving to a lower gear. The number of jumpers in the absence of standard chains must be at least four on each wheel. Good effect gives braiding of drive wheels with a thick rope criss-cross the tread. The use of chains and jumpers on the particularly difficult areas shall not preclude the use of improvised material (sticks, straw, boards, stones, etc.) for tossing a stalled tire. And we should strive to lay the sticks in the way of traffic. When driving on sand and virgin snow are usually formed track. In that case, if the car will stop due to the accumulation of sand or snow in front of the front wheels or zabuksuet, you need to move off the old trail back, and then gradually tronuvshis away, overcome impassable section of the run. This operation must be repeated before leaving on a fairly dense cover.

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