Vertical axis An imaginary line running vertically through the center of gravity of an aircraft.
Vector A direction and altitude assigned to an aircraft by air traffic control.
Vertical Axis: Is the normal upright axis when the longitudinal and lateral axes of an aeroplane are horizontal.
Viscosity: The stiffness of a fluid, or the converse of fluidity.
Rotary kites--vertical axis rotary, spanwise rotary (aerodynamic basis), mixed rotary, streamwise axially rotary UFO and Rotor Kite Information; Classic Rotor (Meat Tray); Koool Kites.
Rotation about the vertical axis is called yaw and is controlled by the rudder. This rotation is referred to as directional control or directional stability.
It provides lateral support to prevent oscillations in the vertical axis.
It maintains parallelism between the engine and prop shaft.
The vertical axis is labeled in feet AGL, or Above Ground Level. This represents how high above the ground the helicopter is.
The traditional units for the vertical axis in this figure would be horsepower, but I have used feet per second instead. This is intended to clarify the equivalence of all four forms of energy by measuring them in a common set of units.
Vertical guidance: Calculations for the vertical axis, rather than the longitudinal axis.
Calculations for the vertical axis, rather than the longitudinal axis. The control law vertical axis input data are: Desired Altitude, Altitude Integral, Altitude Integral Gain, Altitude Integral Limit, Altitude Error Scale Factor, ...
Stability about the vertical axis of an aircraft, whereby an aircraft tends to return, on its own, to flight aligned with the relative wind when disturbed from that equilibrium state.
YAW RATE
The rate of movement about the vertical axis of a aircraft.
YOKE CUE
A vertical flight director cue for fixed-wing aircraft, primarily to control altitude, by changing pitch; Compare: collective cue; Symbols: Gamma sub ...
In the air, rudder is valuable for "yawing" the aircraft (rotating it on its vertical axis; also called the yaw axis) to a slightly different heading. As a general rule, use a few strokes of rudder for a heading change of 30 degrees or less.
yaw axis
The imaginary vertical axis about which an aircraft yaws
ZULU
Greenwich Mean Time, also known as Universal Coordinated Time ...
HELICOPTER - A wingless aircraft acquiring its lift from revolving blades driven by an engine about a near-vertical axis.
A 'side-to-side' rotation of an aircraft around the vertical axis. This effect is produced by the rudder.
Yaw Control
Yaw control is provided by the rudder.
YAW - Movement of an aircraft about its vertical axis, representing movement of its tail unit to port or starboard, to change the aircraft's heading.
All the World's Rotorcraft ...
Yaw Rate The rate of movement about the vertical axis of a model.
Z-Bend A type of linkage point using a bend in the control rod which resemble a Z.
Rudder - The movable vertical control surface used to rotate the airplane about its vertical axis. The pilot operates the rudder by the movement of the foot pedals in the cockpit.
YAW One of the three axes in flight, specifying the side-to-side movement of an aircraft on its vertical axis.
YOKE The control wheel of an aircraft, akin to an automobile steering wheel.
Aviation Insider ...
LAAS will yield the extremely high accuracy, availability, and integrity necessary for Category II, and III precision approaches. Its demonstrated accuracy is less than 1 meter in both the horizontal and vertical axis. Also see GBAS.
These arc named as follows: (1) directional stability, with reference to the vertical axis; (2) lateral stability with reference to the longitudinal (or fore and aft) axis; (3) longitudinal stability, ...
 See also: Aircraft, Direct, Flight, Speed, Dynamic
  
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