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Vocabulary practice flashcards covering pilot regulations, weather theory, aircraft systems, aerodynamics, V-speeds, and aviation physiology from private pilot ground instruction.
Flight Review (14 CFR 61.56)
A regulatory requirement to maintain pilot-in-command privileges, consisting of 1 hour of ground training and 1 hour of flight training completed every 24 calendar months.
Statement of Demonstrated Ability (SODA)
An authorization issued through the FSDO for a static medical condition (such as a missing limb or fingers), requiring a one-time flight test to demonstrate that the condition does not adversely affect piloting duties.
Special Issuance Medical
A medical certificate issued for progressive medical conditions (such as diabetes or heart disease) that could worsen over time, where the Aviation Medical Examiner (AME) determines the frequency of re-evaluation.
BasicMed (Part 68)
An alternative method for medical clearance requiring a valid U.S. driver's license, a medical held after July 14, 2006, an online course every 24 calendar months, and a Comprehensive Medical Examination Checklist (CMEC) completed every 48 calendar months.
Airworthiness Directive (AD)
A mandatory notification issued by the FAA to correct an unsafe condition found in an aircraft, engine, propeller, or appliance.
Special Flight Permit
A permit (also called a Ferry Permit) issued through a FSDO representative authorizing an aircraft that is safe to fly, but not in airworthy condition, to be operated with essential flight crew only and no passengers.
METAR
A surface aviation weather report of current conditions issued 55 minutes past the hour and typically valid for 1 hour.
Terminal Aerodrome Forecast (TAF)
A weather forecast for a specific airport area within a 5 statute mile radius, issued every 6 hours and valid for 24 to 30 hours.
Atmospheric Stability
The atmosphere's ability to resist vertical motion, which dictates cloud formation, precipitation type, visibility, and flight smoothness.
Standard Lapse Rate
The standard decrease in atmospheric temperature with altitude, defined as −2∘C per 1000 ft of elevation gained.
Advection Fog
Fog formed when warm, moist air is pushed horizontally over cool ground, causing the air to cool to its dew point and condense.
Radiation Fog
Fog that forms on calm, clear nights when terrestrial heat radiates away from the ground and the adjacent surface air cools to its dew point.
Upslope Fog
Fog formed when moist, stable air is forced up a mountain or sloping terrain, cooling adiabatically to its dew point as it rises.
Steam Fog
Fog produced when cold, dry air moves across warmer water, causing evaporating water to saturate the air above.
Mountain Wave Turbulence
A form of mechanical turbulence resulting from a stable air mass moving up and over a mountain ridge in an oscillating wave pattern, commonly producing lenticular and rotor clouds.
Clear Air Turbulence (CAT)
High-altitude wind shear turbulence that typically develops along the boundary between the high-velocity core of a jet stream and surrounding ambient air.
Microburst
An intense, localized downdraft occurring primarily in the dissipating stage of a thunderstorm, reaching vertical speeds up to 6000 fpm and lasting 5 to 15 minutes.
Angle of Attack (AOA)
The acute angle formed between the chord line of an airfoil and the direction of the relative wind.
Critical Angle of Attack
The maximum angle between the chord line and the relative wind beyond which airflow separates smoothly from the upper wing surface, producing an aerodynamic stall.
P-Factor
A left-turning tendency caused by the downward-moving propeller blade operating at a higher angle of attack and producing greater thrust than the upward-moving blade, inducing a left yaw.
Maneuvering Speed (VA)
The maximum airspeed at which full, abrupt control deflection will cause the wing to stall before inducing structural damage (98 to 113 kts in the Piper Archer III).
VSO
The stall speed or minimum steady flight speed in the landing configuration (dirty / full flaps), which is 45 kts in the Piper Archer III.
VS
The stall speed or minimum steady flight speed in a specified clean configuration (zero flaps), which is 50 kts in the Piper Archer III.
VX
The best angle of climb speed, providing the greatest altitude gain over a given horizontal distance (64 kts in the Piper Archer III).
VY
The best rate of climb speed, yielding the greatest altitude gain over a given amount of time (76 kts in the Piper Archer III).
ADAHRS
Air Data Attitude and Heading Reference System; an integrated avionics unit combining the functions of an Air Data Computer (ADC) and an Attitude and Heading Reference System (AHRS).
Differential Ailerons
Ailerons configured so that the upward-deflecting aileron moves through a greater angle (25∘) than the downward-deflecting aileron (12.5∘) to counteract adverse yaw.
Hypemic Hypoxia
A condition in which oxygen is present in the lungs but the blood's hemoglobin cannot bind or transport it to tissues, commonly caused by carbon monoxide poisoning.
Stagnant Hypoxia
Oxygen deficiency caused by inadequate blood circulation through the tissues, frequently experienced during high G-force maneuvers or cardiovascular impairment.
Coriolis Illusion
A vestibular illusion that occurs when a pilot tilts their head in a different plane while in a prolonged constant-rate turn, creating the sensation of turning or tumbling on an entirely different axis.
Somatogravic Illusion
An illusion produced when rapid linear acceleration acts on the otolith organs to create the sensation of pitching up, while rapid deceleration creates the sensation of pitching down.
Graveyard Spiral
An illusion where a pilot recovering from a prolonged coordinated turn falsely perceives a turn in the opposite direction, corrects back into the original turn, and pulls back on the yoke to correct perceived altitude loss, tightening the spiral.
Featureless Terrain Illusion
An optical illusion (also known as the Black Hole Effect) occurring over dark or unfeatured terrain that makes the aircraft appear higher than it is, enticing the pilot to fly a dangerously low approach.