Off Tracking:

Off tracking refers to the difference in the paths followed by the front and rear axles of a vehicle while negotiating a horizontal curve. It is caused by the fact that the rear axle follows a shorter path compared to the front axle due to the shorter wheelbase of the vehicle. This difference in paths can lead to various issues such as vehicle instability, tire wear, and increased risk of accidents.

Causes of Off Tracking:

There are several factors that contribute to off tracking:

1. Wheelbase: The wheelbase is the distance between the front and rear axles of a vehicle. If the wheelbase is shorter, the rear axle will follow a tighter path compared to the front axle, resulting in off tracking.

2. Curve Radius: The radius of the curve also affects off tracking. If the curve radius is smaller, the difference in paths between the front and rear axles will be more pronounced.

3. Vehicle Design: The design of the vehicle, including the placement of the axles and the position of the center of gravity, can affect off tracking. Vehicles with a higher center of gravity are more prone to off tracking.

4. Tire Characteristics: The type and condition of the tires can also influence off tracking. Worn-out or unevenly inflated tires can exacerbate the difference in paths between the front and rear axles.

Effects of Off Tracking:

Off tracking can have several negative effects on vehicle performance and safety:

1. Instability: The difference in paths between the front and rear axles can lead to vehicle instability, especially at higher speeds or when making sharp turns.

2. Tire Wear: Off tracking puts additional stress on the tires, causing uneven wear and reducing their lifespan. This can result in increased maintenance costs for the vehicle owner.

3. Increased Risk of Accidents: Off tracking can make the vehicle more difficult to control, increasing the risk of accidents, especially when the driver is not aware of the vehicle's off tracking behavior.

Conclusion:

Off tracking is the difference in paths followed by the front and rear axles of a vehicle while negotiating a horizontal curve. It can be caused by factors such as wheelbase, curve radius, vehicle design, and tire characteristics. Off tracking can lead to vehicle instability, tire wear, and increased risk of accidents. Therefore, it is important for vehicle manufacturers and drivers to be aware of off tracking and take appropriate measures to minimize its effects.