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β° = Breakover angle; C = Underside of chassis; W = Wheel; G = Ground; M = Midpoint of wheelbase Example of a vehicle at a significant breakover angle.. Breakover angle or rampover angle is the maximum possible supplementary angle (usually expressed in degrees) that a vehicle, with at least one forward wheel and one rear wheel, can drive over without the apex of that angle touching any point ...
Approach (α) and departure angle (β) of a vehicle. 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.
This diagram shows what a breakover angle is. It was created to be placed on the breakover angle page. β° = Breakover angle; C = Underside of chassis; W = Wheel; G = Ground; M = Midpoint of wheelbase: Date: 15 March 2014: Source: I made this diagram using Inkscape: Author: Rlboyce
Along with clearance, length of overhangs affects the approach and departure angles, which measure the vehicle's ability to overcome steep obstacles and rough terrain.The longer the front overhang, the smaller is the approach angle, and thus lesser the car's ability to climb or descend steep ramps without damaging the front bumpers. [1]
Suspension lifts can enable steeper approach, departure, and breakover angles, higher ground clearance, and helps accommodate larger wheels and tires. Due to the raised center of gravity , maximum safe operating angles can be reduced and roadholding is often significantly impaired.
The JLTV must be able to drive off an 18-inch vertical step at 15 mph and sustain no mechanical damage. It will be capable of traversing a 20-degree V-ditch that is 25 feet wide at an approach angle of 45-degree. It can 'jump' a 6-inch parallel curb at 15 mph and traverse a 20-foot flight of stairs at 5 mph.
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In Europe, aircraft usually join the pattern at a 45° angle to the downwind leg, in the beginning of the downwind leg. [citation needed] Fast aircraft, for example military jets, may enter the pattern with a run-and-break (in the US, overhead maneuver or overhead break). The aircraft flies at speed along the final leg, and makes a sharp, high ...