AE101 - Basic Theory Flashcards
Displacement is the _______ and _______ of a body’s movement
distance and direction
A vector is a quantity that represents _______ and _______
mass and direction
Density = _______ divided by _______
Mass divided by Volume
Work = ______ x _______
Force x Distance of displacement (s)
Power = _______ divided by _______
Work divided by time
Moment = _______ x _______
Force x Distance
Total Energy (T.E) = ________ + ________
Kinetic Energy (K.E.) + Potential Energy (P.E.)
Energy cannot be created or destroyed but may be transformed from one form (potential or kinetic) to the other. This principle is called __________
conservation of energy
What is Newton’s first law of motion?
“Law of Equilibrium” or Inertia
A body at rest tends to remain at rest and a body in motion tends to remain in motion in a straight line at a constant velocity unless acted upon by some unbalanced force.
What is Newton’s second law?
“Law of Acceleration”
An unbalanced force acting upon a body produces an acceleration in the direction of the force that is directly proportional to the force and inversely proportional to the mass of the body.
When thrust is greater than drag, the excess thrust will cause the aircraft to accelerate until the increasing drag equals thrust.
Acceleration = Force / Mass
What is Newton’s third law?
“Law of Interaction”
For every action, there is an equal and opposite reaction.
Air temperature decreases at a rate of __º C for every _____ feet.
2º C per 1000 feet
General Gas Law
Pressure = ___ x ___ x ___
P=p x R x T
Pressure = density x Universal Gas Constant x Temperature
_____ ______ _____ is a measurement of the weight of an air column over a specific area.
Ambient Static Pressure
_______ is the measure of the average kinetic energy of the air particles.
Temperature
________ ________ is the force that molecules of air exert on each other by their random movement.
Static Pressure (Ps)
_______ _______ is a measure of impact pressure of a large group of air molecules moving together.
Dynamic Pressure (Pd)
________ _______ is the sum of static and dynamic pressure.
Total Pressure
Pt = Ps + Pd
_______ _______ is the actual height above mean sea level (MSL)
True Altitude
_______ _______ is a height measured above a standard datum plane (29.92 in-Hg)
Pressure Altitude
_______ _______ is a pressure altitude corrected for temperature deviations from the standard atmosphere.
Density Altitude
_______ Airspeed is the actual speed at which an aircraft moves through an air mass.
True Airspeed
________ is the speed at which an aircraft moves relative to the ground. (TAS corrected for winds.)
Groundspeed
_______ Airspeed is the speed that the pilot reads of the airspeed indicator.
Indicated Airspeed
As a rule of thumb, at a constant IAS, TAS will increase approximately __ knots for each thousand foot increase in altitude.
3 knots
_______ airspeed is indicated airspeed corrected for either indicator error or for minor sensing errors caused by the location of the pitot-static system on the airplane.
Calibrated airspeed
_______ airspeed is calibrated airspeed corrected for errors caused by compressibility effects.
Equivalent airspeed
What is the line drawn from the leading edge to the trailing edge, halfway between the upper and lower surface of the airfoil?
Mean Camber Line (MCL)
The _______ is an infinitely long straight line drawn through the leading and trailing edges of the airfoil.
The _______ is the segment of the chordline measured from the leading edge to the trailing edge.
Chordline
Chord
_______ is measured by finding the maximum distance between the mean camber line and the chord line.
Camber
________ ______ is airflow that travels along the span of the wing parallel to the leading edge.
Spanwise Flow
_______ ______ is air that flows at right angles to the leading edge of the airfoil.
Chordwise flow (the only airflow that produces lift)
_______ _______ is defined as the angle between the longitudinal axis of an airplane and the horizon.
Pitch Attitude
_______ _____ is the apparent motion of the air with respect to the motion of the aircraft and is in the direction opposite the flight path.
Relative Wind
What is the angle between the chordline of the airfoil and the relative wind.
Angle of Attack (AOA)
What is the Angle of Incidence?
The angle between the airplane’s longitudinal axis and the chordline of its wing.
The wingspan of the T-6A wing is _____ feet ____ inches.
33 feet 5 inches
______ ______ is the apparent surface area of a wing within a n outline of the wing on the plane of its chords and is approximated by multiplying the wingspan by the average chord.
Wing Area
_____ _______ is the ration of an aircraft’s weight to the surface area of the wings.
Wing Loading
_______ _______ is the reduction in the chord for a given airfoil from the root to the tip, and is measured by dividing the tip chords by the root chord.
Wing Taper
______ ______ is the angle between the quarter chord line and a line parallel to the lateral axis of the aircraft.
Sweep Angle
_______ _______ is the ratio of the wingspan to the average chord.
Aspect ratio
_______ ___ _______ is the point from which movements in all 3 axes are measured.
Center of Gravity
The center of lift is also known as the _______ ______.
Aerodynamic Center
