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and the distance between where it is applied and the aircraft's center of mass that tends to cause the aircraft to rotate about its roll axis. The roll axis is usually defined as the longitudinal axis, which runs from the nose to the tail of the aircraft. A roll moment can be the result of wind
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refers to an offset from normal on this axis that is intentional or expected, as caused by wind pressure on sails, turning, or other crew actions.
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refers to an unintentional or unexpected offset, as caused by flooding, battle damage, shifting cargo, etc.
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In two-axle vehicles, such as cars and some trucks, the roll axis may be found by connecting the
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With the effective rolling arm Hr defined, it is possible to calculate the roll moment
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175:(4). J. Braz. Soc. Mech. Sci. & Eng. vol.33 no.4 Rio de Janeiro: 437–444.
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whatever lateral acceleration that the vehicle is experiencing, usually
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Brazilian Society of Mechanical Sciences and Engineering
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applied to the vehicle due to the lateral acceleration imposed:
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the vertical distance between the vehicle's roll axis and its
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