NIFE-AERO ELO's, Questions, & Equations || A+ Certified.
DEFINE - Vector correct answers Quantity that represents magnitude and direction. Resultant
vector may be divided into separate components
DEFINE - Air Density correct answers Air particles within a given volume.
DEFINE - Moment correct answers Created when a force is applied at some perpendicular
distance from a rotation point
STATE - Requirements for an airplane to be in equilibrium flight correct answers Sum of all
forces and moments is zero about CoG
STATE - Requirements for an airplane to be in trimmed flight correct answers Sum of all (just)
moments is zero - think of a constant turn rate
DESCRIBE - Relationship between temperature and altitude correct answers Decreases 2
degrees/1,000' up to 36,000' (Lapse Rate). P=pRT
DESCRIBE - Relationship between humidity and air density correct answers As humidity
increases, air density decreases. H2O < O2
STATE - General Gas Law correct answers P=pRT
DEFINE - Steady Airflow correct answers P, p, Temp, V stay constant at each particular point in
streamtube
EXPLAIN - Continuity Equation correct answers A1V1=A2V2
EXPLAIN - Bernoulli's Equation correct answers Pt = Ps + Pd, Pd = q = 1/2pV^2
EXPLAIN - Different Types of Airspeeds (I in ICE-TG) correct answers IAS - Indicated
Airspeed - Instrument airspeed for amount of aircraft dynamic pressure (q). Measured in KIAS.
EXPLAIN - Different Types of Airspeeds (C in ICE-TG) correct answers CAS - Calibrated
Airspeed - IAS corrected for position/instrument error.
EXPLAIN - Different Types of Airspeeds (E in ICE-TG) correct answers EAS - Equivalent
Airspeed - CAS corrected for compressibility error
EXPLAIN - Different Types of Airspeeds (T in ICE-TG) correct answers TAS - True Airspeed -
EAS corrected for density. Actual velocity through volume of air. TAS = sqrt(p0/p)*IAS
EXPLAIN - Different Types of Airspeeds (G in ICE-TG) correct answers GS - Ground speed -
TAS corrected for wind.
, DEFINE - Mean Camber Line (MCL) correct answers Line from the Leading Edge to Trailing
Edge that is halfway between upper and lower surfaces of the airfoil
DEFINE - Chord correct answers The straight line from the Leading Edge to the Trailing Edge.
DEFINE - Camber & Camber Types correct answers Curvature of the MCL. Max distance
between MCL and chord. Symmetric, Positive, Negative
DEFINE - Wingspan correct answers Wingtip to wingtip distance (b)
DEFINE - Wing Area correct answers Surface of wing. Wingspan * chord (S)
DEFINE - Chordwise Airflow correct answers Perpendicular to Leading Edge, accelerating over
the wing producing lift
DEFINE - Spanwise Airflow correct answers Parallel to Leading Edge, does not create lift
DEFINE - Pitch Attitude correct answers Angle between longitudinal axis and horizon
DEFINE - Flight Path correct answers Aircraft's CG movement through an air mass
DEFINE - Relative Wind correct answers Opposite direction of the flight path
DEFINE - Angle of Attack correct answers Angle formed between the relative wind and the
chord line of the airfoil (AOA, α)
DEFINE - Aerodynamic Center is ___ correct answers Point where all aerodynamic forces are
acting and the center of lift. Located ~25% aft (1/4 Chord) at max thickness of the airfoil. (AC)
STATE - Lift is the ____ correct answers Force that is perpendicular to the relative wind. (1 of 2
aerodynamic forces)
STATE - The component of aerodynamic force that acts parallel to the relative wind is ____
correct answers Drag (1 of 2 aerodynamic forces)
DESCRIBE - The pressure distribution around an airfoil given changes in AOA and camber
correct answers Top - High (LE) to Low (Max Thick) to High (TE)
QUESTION - Air density is ____ at 10,000' MSL compared to 5,000' MSL correct answers
Lower than
LIST - What components of the lift equation can the pilot control correct answers V, AOA,
camber
DEFINE - Vector correct answers Quantity that represents magnitude and direction. Resultant
vector may be divided into separate components
DEFINE - Air Density correct answers Air particles within a given volume.
DEFINE - Moment correct answers Created when a force is applied at some perpendicular
distance from a rotation point
STATE - Requirements for an airplane to be in equilibrium flight correct answers Sum of all
forces and moments is zero about CoG
STATE - Requirements for an airplane to be in trimmed flight correct answers Sum of all (just)
moments is zero - think of a constant turn rate
DESCRIBE - Relationship between temperature and altitude correct answers Decreases 2
degrees/1,000' up to 36,000' (Lapse Rate). P=pRT
DESCRIBE - Relationship between humidity and air density correct answers As humidity
increases, air density decreases. H2O < O2
STATE - General Gas Law correct answers P=pRT
DEFINE - Steady Airflow correct answers P, p, Temp, V stay constant at each particular point in
streamtube
EXPLAIN - Continuity Equation correct answers A1V1=A2V2
EXPLAIN - Bernoulli's Equation correct answers Pt = Ps + Pd, Pd = q = 1/2pV^2
EXPLAIN - Different Types of Airspeeds (I in ICE-TG) correct answers IAS - Indicated
Airspeed - Instrument airspeed for amount of aircraft dynamic pressure (q). Measured in KIAS.
EXPLAIN - Different Types of Airspeeds (C in ICE-TG) correct answers CAS - Calibrated
Airspeed - IAS corrected for position/instrument error.
EXPLAIN - Different Types of Airspeeds (E in ICE-TG) correct answers EAS - Equivalent
Airspeed - CAS corrected for compressibility error
EXPLAIN - Different Types of Airspeeds (T in ICE-TG) correct answers TAS - True Airspeed -
EAS corrected for density. Actual velocity through volume of air. TAS = sqrt(p0/p)*IAS
EXPLAIN - Different Types of Airspeeds (G in ICE-TG) correct answers GS - Ground speed -
TAS corrected for wind.
, DEFINE - Mean Camber Line (MCL) correct answers Line from the Leading Edge to Trailing
Edge that is halfway between upper and lower surfaces of the airfoil
DEFINE - Chord correct answers The straight line from the Leading Edge to the Trailing Edge.
DEFINE - Camber & Camber Types correct answers Curvature of the MCL. Max distance
between MCL and chord. Symmetric, Positive, Negative
DEFINE - Wingspan correct answers Wingtip to wingtip distance (b)
DEFINE - Wing Area correct answers Surface of wing. Wingspan * chord (S)
DEFINE - Chordwise Airflow correct answers Perpendicular to Leading Edge, accelerating over
the wing producing lift
DEFINE - Spanwise Airflow correct answers Parallel to Leading Edge, does not create lift
DEFINE - Pitch Attitude correct answers Angle between longitudinal axis and horizon
DEFINE - Flight Path correct answers Aircraft's CG movement through an air mass
DEFINE - Relative Wind correct answers Opposite direction of the flight path
DEFINE - Angle of Attack correct answers Angle formed between the relative wind and the
chord line of the airfoil (AOA, α)
DEFINE - Aerodynamic Center is ___ correct answers Point where all aerodynamic forces are
acting and the center of lift. Located ~25% aft (1/4 Chord) at max thickness of the airfoil. (AC)
STATE - Lift is the ____ correct answers Force that is perpendicular to the relative wind. (1 of 2
aerodynamic forces)
STATE - The component of aerodynamic force that acts parallel to the relative wind is ____
correct answers Drag (1 of 2 aerodynamic forces)
DESCRIBE - The pressure distribution around an airfoil given changes in AOA and camber
correct answers Top - High (LE) to Low (Max Thick) to High (TE)
QUESTION - Air density is ____ at 10,000' MSL compared to 5,000' MSL correct answers
Lower than
LIST - What components of the lift equation can the pilot control correct answers V, AOA,
camber
