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A single-track vehicle is a vehicle that leaves a single ground track as it moves forward. Single-track vehicles usually have little or no lateral stability when stationary but develop it when moving forward or controlled. In the case of wheeled vehicles, the front and rear wheel usually follow slightly different paths when turning or when out of alignment.
Single-track vehicles have unique dynamics that, in the case of wheeled vehicles, are discussed at length in bicycle and motorcycle dynamics, that usually require leaning into a turn, and that usually include countersteering. Single-track vehicles can roll on wheels, slide, float, or hydroplane.
- bicycle, tandem bicycle, tall bike, and recumbent bicycle
- motorcycle, scooter, and feet forward motorcycle
- gyrocar and gyro monorail
- kick scooter
- unicycle, self-balancing unicycle, Uno (dicycle), and monowheel
- inline skate and roller ski (when only one is in contact with the ground or when the second follows behind the first)
Intermittent contact Edit
Narrow-track vehicle Edit
A vehicle is approximately single-track when the axle track is small enough with respect to the center of mass height to require leaning into a turn. Countersteering may or may not be required.
See also Edit
- Wilson-Jones, R. A. (1951-01-01). "Steering and Stability of Single-track Vehicles". Proceedings of the Institution of Mechanical Engineers: Automobile Division. 5 (1): 191–213. doi:10.1243/PIME_AUTO_1951_000_023_02. ISSN 0367-8822.
- Sharp, R. S. (2007-07-27). "The Dynamics of Single Track Vehicles". Vehicle System Dynamics. 5 (1–2): 67–77. doi:10.1080/00423117508968406. ISSN 0042-3114.