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370:(when flying in the atmosphere of the Earth or another body, such as Mars or Venus). The vehicle's attitude must be controlled during powered atmospheric flight because of its effect on the aerodynamic and propulsive forces. There are other reasons, unrelated to flight dynamics, for controlling the vehicle's attitude in non-powered flight (e.g., thermal control, solar power generation, communications, or astronomical observation).
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angle ("beta"). A sideslip angle will arise if an aircraft yaws about its centre of gravity and if the aircraft sideslips bodily, i.e. the centre of gravity moves sideways. These angles are important because they are the principal source of changes in the aerodynamic forces and moments applied to the
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The flight dynamics of spacecraft differ from those of aircraft in that the aerodynamic forces are of very small, or vanishingly small effect for most of the vehicle's flight, and cannot be used for attitude control during that time. Also, most of a spacecraft's flight time is usually unpowered,
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Spacecraft flight dynamics involve three main forces: propulsive (rocket engine), gravitational, and atmospheric resistance. Propulsive force and atmospheric resistance have significantly less influence over a given spacecraft compared to gravitational forces.
328:(AOA). The roll angle is also known as bank angle on a fixed-wing aircraft, which usually "banks" to change the horizontal direction of flight. An aircraft is streamlined from nose to tail to reduce
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with respect to the local air flow is represented by two critical angles, the angle of attack of the wing ("alpha") and the angle of attack of the vertical tail, known as the
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Depending on the vehicle's mass distribution, the effects of gravitational force may also be affected by attitude (and vice versa), but to a much lesser extent.
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making it advantageous to keep the sideslip angle near zero, though aircraft are deliberately "side-slipped" when landing in a cross-wind, as explained in
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Flight dynamics is the science of air-vehicle orientation and control in three dimensions. The critical flight dynamics parameters are the
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starting from a defined equilibrium state. The equilibrium roll angle is known as wings level or zero bank angle, equivalent to a level
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increases or decreases the lift generated by the wings when it pitches nose up or down by increasing or decreasing the
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about the center of gravity of the aircraft, and thus rotate the aircraft in pitch, roll, or yaw. For example, a
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Flightwise - Volume 2 - Aircraft
Stability And Control, Chris Carpenter 1997, Airlife Publishing Ltd.,
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Propulsive, aerodynamic, and gravitational force vectors acting on a space vehicle during launch
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is a vertical force applied at a distance forward or aft from the center of gravity of the
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Please expand the article to include this information. Further details may exist on the
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Roll, pitch and yaw refer, in this context, to rotations about the
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Study of the performance, stability, and control of flying vehicles
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This section focuses on fixed-wing aircraft. For other kinds see
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For flight dynamics of fixed-wing aircraft and spacecraft, see
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force exerted by the Earth and other celestial bodies; and
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force (usually provided by the vehicle's engine thrust);
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The forces acting on space vehicles are of three types:
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Pages displaying short descriptions of redirect targets
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about aircraft and spacecraft performance and control.
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440:Aircraft Flight Dynamics (MAE 331) course summary
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317:angle on a ship. Yaw is known as "heading".
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131:Learn how and when to remove this message
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374:leaving gravity as the dominant force.
238:Axes to control the attitude of a plane
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378:See also
304:aircraft
288:attitude
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230:Aircraft
219:sideslip
204:velocity
188:aviation
172:May 2020
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