If a theoretical marker pen was placed on the point of the vehicle furthest from the centre of the turn, it would draw a circle and the diameter of that circle would give the value of that vehicle's turning circle when measure using one's preferred units, imperial or metric.įor example the 2017 Audi A4 has a turning circle of 38.1 feet (11.6m). one or two or even four wheels at the front capable of steering), the vehicle's turning circle is a measure of the space needed to turn the vehicle around while the steering is set to its maximum displacement from the central 'straight ahead' position - i.e. With wheeled vehicles with normal steering (i.e. Most obviously boats can be turned in this way.
Taking a rectangular vehicle capable of doing this, its turning circle would in fact be equal to the diagonal length of the vehicle. The tightest turning circle possible for a vehicle is the one where the vehicle does not move either forwards or backwards while turning and effectively simply rotates on its own axis.
Turning circle refers to a theoretical minimal circle in which a vehicle or boat can be turned around. In addition, while the vehicle is moving dynamic forces will arise that will affect. The calculation is not precise because when a vehicle is cornering the perpendiculars through the centers of all wheels do not intersect at the curve center point (Ackermann condition). Turning radius of a passenger car - wall-to-wall radius / diameter at the top, taking the front overhang into consideration, and curb-to-curb radius / diameter at the bottom. The outer turning circle, or its radius, is the main subject of interest.
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