Module 2 - You Airplane & Aerodynamics Flashcards
What are the primary flight controls
Ailerons
Elevator
Rudder
What are the secondary flight controls?
Flaps
leading edge devices
spoilers
trim
What is the purpose of the flaps?
To enable the pilot to make steeper approaches to landing without increasing airspeed.
What is the purpose of the rudder?
To control yaw.
Which of the following is true concerning primary flight controls?
The effectiveness of each control surface increases with speed because there is more air flowing over them.
What are the four forces acting on our aircraft in flight at all times?
Life, Weight, Thrust, Drag
What is accelerated flight?
When all four forces are equal we are in accelerated flight.
Air traveling over the curved upper surface of an airfoil causes low pressure on the upper surface.
Bernoulli’s Principle
Air traveling over the curved upper surface of an airfoil cuases low pressure on the upper surface.
Bernoulli’s Principle
The difference between the chord line and the relative win.
Angle of attack
Where all of the lift is concentrated on the wing.
Center of pressure
Where the aircraft will balance and relates to our stability.
Center of gravity. (CG)
What is a forward center of gravity great for?
Stability
Is a AFT CG more or less table?
Less
What force helps a aircraft through a turn?
Horizontal component of lift.
As altitude increases, the indicated airspeed at which a given airplane stalls in a particular configuration will?
A A/C can stall at any airspeed, but it will always stall at the same critical area of attack.
What flight condition must an aircraft be placed to spin?
Stalled
What is ground effect?
The result of interference of the surface of the earth with the airflow patterns about an airplane.
An aircraft said to be inherently stable will?
Require less effort to control.
P Factor is how many types of left turning tendencies?
P Factor is one of four left turning tendencies.
What does p-factor cause the airplane to the left?
When at high angles of attack. The descending propeller has a greater angle of attack.
Torque
for every action there is an opposite reaction.
Descending blade creates a larger angle of attack
P-Factor
A spinning disc has rigidity in space.
Gyroscopic preciession
Corkscrew airflow impacts the tail section.
Spiraling Slip Stream
The amount of excess load that can be imposed on the wing of an airplane depends on the ?
speed of the airplane
Which basic maneuver increases the load factor of and airplane as compared to straight and level flight?
Turns
What changes the basic aerodynamic shape of the wing, but the roughness of its surface spoils the smooth flow of air, thus causing an increase in drag and an early airflow separation over the wing, resulting in a loss of lift.
Frost
The greater the load (whether from gross weight or from centrifugal force), the more life is required. Therefore, and aircraft will _____ at higher airspeeds when the load and/or load factor is increased.
stall
Which V-speed represents maneuvering speed?
Va
Which V-speed represents maximum landing gear extended speed?
Vle
