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# Yaw (rotation)

A yaw rotation is a movement around the yaw axis of a rigid body that changes the direction it is pointing, to the left or right of its direction of motion. [1]

## Accelerometer

An accelerometer is a device that measures proper acceleration.

Adverse yaw is the natural and undesirable tendency for an aircraft to yaw in the opposite direction of a roll.

## Aircraft principal axes

An aircraft in flight is free to rotate in three dimensions: yaw, nose left or right about an axis running up and down; pitch, nose up or down about an axis running from wing to wing; and roll, rotation about an axis running from nose to tail.

## Angular velocity

In physics, the angular velocity of a particle is the rate at which it rotates around a chosen center point: that is, the time rate of change of its angular displacement relative to the origin.

## Basic fighter maneuvers

Basic fighter maneuvers (BFM) are tactical movements performed by fighter aircraft during air combat maneuvering (also called ACM, or dogfighting), in order to gain a positional advantage over the opponent.

## Center of mass

In physics, the center of mass of a distribution of mass in space is the unique point where the weighted relative position of the distributed mass sums to zero, or the point where if a force is applied it moves in the direction of the force without rotating.

## Coriolis force

In physics, the Coriolis force is an inertial force that acts on objects that are in motion relative to a rotating reference frame.

## Damping ratio

Damping is an influence within or upon an oscillatory system that has the effect of reducing, restricting or preventing its oscillations.

## Directional stability

Directional stability is stability of a moving body or vehicle about an axis which is perpendicular to its direction of motion.

## Electronic stability control

Electronic stability control (ESC), also referred to as electronic stability program (ESP) or dynamic stability control (DSC), is a computerized technology that improves a vehicle's stability by detecting and reducing loss of traction (skidding).

## Flight dynamics

Flight dynamics is the study of the performance, stability, and control of vehicles flying through the air or in outer space.

## Frenet–Serret formulas

In differential geometry, the Frenet–Serret formulas describe the kinematic properties of a particle moving along a continuous, differentiable curve in three-dimensional Euclidean space ℝ3, or the geometric properties of the curve itself irrespective of any motion.

## Gyroscope

A gyroscope (from Ancient Greek γῦρος gûros, "circle" and σκοπέω skopéō, "to look") is a device used for measuring or maintaining orientation and angular velocity.

## Instability

In numerous fields of study, the component of instability within a system is generally characterized by some of the outputs or internal states growing without bounds.

## Moment (physics)

In physics, a moment is an expression involving the product of a distance and a physical quantity, and in this way it accounts for how the physical quantity is located or arranged.

## Moving frame

In mathematics, a moving frame is a flexible generalization of the notion of an ordered basis of a vector space often used to study the extrinsic differential geometry of smooth manifolds embedded in a homogeneous space.

## Six degrees of freedom

Six degrees of freedom (6DoF) refers to the freedom of movement of a rigid body in three-dimensional space.

## Steering

Steering is the collection of components, linkages, etc.

## Torque

Torque, moment, or moment of force is rotational force.

## Vehicle dynamics

For vehicles such as cars, vehicle dynamics is the study of how the vehicle will react to driver inputs on a given road.

## Wheelbase

In both road and rail vehicles, the wheelbase is the distance between the centers of the front and rear wheels.

## Yaw-rate sensor

A yaw-rate sensor is a gyroscopic device that measures a vehicle’s angular velocity around its vertical axis.

## References

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