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List of aircraft upset factors
The U.S. FAA lists factors of
aircraft upset
in the
Airplane Upset
Recovery Training Aid
as follows:
Turbulence
causes:
*
Clear air turbulence
*
Mountain wave
turbulence
*
Windshear
*
Thunderstorms
*
Microbursts
*
Wake turbulence
*
Aircraft icing
Systems anomalies:
*
Flight instruments
*
Autoflight systems
*
Flight control
and other anomalies
Pilot-Induced
* Instrument cross-check
* Adjusting attitude and power
* Inattention
*
Distraction
from primary cockpit duties
*
Vertigo
or
spatial disorientation
* Pilot incapacitation
* Improper use of airplane automation
* Pilot techniques
*
Pilot induced oscillation
avoidance and recovery
Combination causes:
*
Swept-wing
airplane fundamentals for pilots
*
Flight dynamics
*
Energy states
*
Load factor
*
Aerodynamic flight envelope
Aerodynamic
causes:
*
Angle of attack
and stall
*
Camber
*
Control surface
fundamentals
* Spoiler-type
devices
* Trim
* Lateral and
directional
aerodynamic considerations
*
Angle of sideslip
* Wing
dihedral
effects
* Pilot-commanded
sideslip
*
Crossover speed
*
Static stability
* Maneuvering in pitch
* Mechanics of turning flight
* Lateral and directional maneuvering
* Flight at extremely low airspeeds
* High-altitude factors
*
Stall
*
icing
* Automation during
high-altitude flight
*
Primary flight display
airspeed indications
*
Human factors
and
high altitude
upsets
Additional considerations:
* Multi-engine
flame out
*
Core lock
* Engine rollback
* Flight at extremely high speeds
* Defensive, aggressive maneuvers
*
Situation awareness
* Startle factor
*
Negative
G-force
* Use of full control inputs
* Counter-intuitive factors
* Previous training in non-similar airplanes
*
Engine performance
in upset situation
* Post-upset conditions