Steady Eddie
The characteristic of an airplane in flight that causes it to return to a condition of equilibrium, or steady flight, after it has been disturbed.
What is stability?
Determined by an airplanes size, weight, flight control system, structural strength and thrust--the characteristic of an airplane that permits you to maneuver it easily.
What is maneuverability?
Vertical, longitudinal, lateral.
What are the three axes of flight?
Mushy feeling in the flight controls, less flight control effectiveness, loss of RPM in fixed propeller airplanes, buffeting.
What are signs of impending stall/stall recognition?
The stability maintained by the vertical stabilizer.
What is directional stability?
The initial tendency to return to the position from which it was displaced.
What is positive static stability?
A combination of rolling/yawing oscillations, caused by pilot inputs or wind gusts.
What is Dutch Roll?
Movement about this axis is called roll.
What is the longitudinal axis?
Normally caused by poor stall recovery technique, such as attempting flight prior to attaining sufficient flying speed.
What is a secondary stall?
Exceeding the critical angle of attack while performing an uncoordinated maneuver.
What is the primary cause of a spin?
The tendency of an airplane to return to the position from which it was displaced over time.
What is positive dynamic stability?
When the airplane is loaded properly, the CG remains forward of the center of lift (pressure), making the airplane slightly nose heavy. This is offset by____.
What is tail down force?
The common reference point for the three axes of an airplane.
What is the center of gravity?
A prerequisite for a spin.
What is a stall?
Loading the aircraft with a CG (center of gravity) too far aft.
What will make the aircraft very unstable in pitch?
This involves the pitching motion or tendency of the aircraft to move around the lateral axis.
What is longitudinal stability?
The most common design for lateral stability.
What is wing dihedral?
Movement of an airplane around the lateral axis.
What is pitch?
Erect, inverted and flat.
What are types of spins?
Although the airplane may seem to make the airplane more stable, adverse side effects include longer takeoff distance and higher stalling speeds.
What is loading the aircraft with the CG too far forward?
Stability around an airplanes longitudinal axis, which extends nose to tail.
What is lateral stability?
The capability of an airplane to respond to control inputs.
What is controlability?
Movement of an airplane around the vertical axis.
What is yaw?
Throttle to idle, neutralize ailerons, full rudder in opposite direction of rotation, elevator forward to approximately neutral position (relax back pressure), as rotation stops neutralize rudder, gradually apply aft elevator to return to level flight , adjust power.
How to recover from a spin?
You can control the location of this by what you load into the airplane and where you put it.
What is the CG location?