Approach and departure angles

Approach angle is the maximum angle of a ramp onto which a vehicle can climb from a horizontal plane without interference. ^[1] It is defined as the angle between the ground and the line drawn between the front tire and the lowest-hanging part of the vehicle at the front overhang.^[2][3] Departure angle is its counterpart at the rear of the vehicle – the maximum ramp angle from which the car can descend without damage. Approach and departure angles are also referred to as ramp angles.^[4]

Approach (α) and departure angle (β) of a vehicle

Approach and departure angles are indicators of off-road ability of the vehicle: they indicate how steep of obstacles, such as rocks or logs, the vehicle can negotiate according to its body shape alone.^[2]

See also

• Breakover angle
• Overhang (automotive)
• Ride height