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What do roll, pitch, and yaw describe in a vehicle’s movement?
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navigation
Officers on a passenger ship using charts for navigation.
In the context of navigation technology, roll, pitch, and yaw describe a vehicle's rotation about its three primary axes. These terms are essential for monitoring the orientation and movement of crafts such as airplanes, submarines, and missiles.1
The movements are defined as follows:
- Roll: Rotation about the longitudinal axis, which runs from the front to the rear of the vehicle.12
- Pitch: Rotation about the transverse (lateral) axis, which runs from the left side to the right side of the vehicle.12
- Yaw: Rotation about the vertical axis, which runs from the top to the bottom of the vehicle.12
These rotational motions are typically measured by gyroscopes within an inertial guidance system, allowing a computer to calculate the vehicle's current position and velocity relative to its intended course.1