AE102 Flashcards
In straight and level flight (constant lift), angle of attack and velocity have what relationship?
In straight and level flight, angle of attack and velocity are INVERSELY related in the production of lift
Which airfoil produces no lift at zero degrees angle of attack?
Symmetric airfoil
What is the benefit of geometric and aerodynamic twist on a wing?
The wing root stalls before the wing tip.
Parasite drag is defined as drag ____________
Caused by anything other than the creation of lift
Painting or cleaning the surface of a wing or aircraft will___________
Reduce friction drag
Induced drag is caused by?
The production of lift
In level flight an increase in velocity will___________
Decrease induced drag
Total drag is combined of____________
Induced and parasite drag
In relation to velocity, total drag _____________
Decreases until L/Dmax then increases
Ground effect is the phenomenon that reduces _______ due to a decrease in __________
Induced drag ; downwash
Thrust is the force that opposes _________
Drag
What happens to thrust on a propeller driven aircraft as velocity increase ?
It decreases
As velocity increases, a propeller’s PA will initially increase then ______.
Decrease
What happens to the ailerons if you wanna roll to the right?
right aileron rises decreasing lift, and the left aileron lowers increasing lift
For the nose of the airplane to pitch up, the ______.
trailing edge of the elevator must move up in relation to the horizontal stabilizer
What happens to lift if you increase the camber of a wing?
Increases lift
The T-6A has which kind of trailing edge flaps?
Split flaps
Lowering the landing gear causes an increase in ______.
Parasite drag
Aerodynamic force is the ______.
result of pressure and friction distribution over an airfoil
The component of aerodynamic force that acts parallel to the relative wind is ______
Drag
What airfoil produces lift at zero degrees angle of attack?
Positively cambered
L/D is the point where ______
the ratio of lift to drag is the greatest
Total drag is composed of ______.
Parasite and induced drag
Parasite drag is ______
made up of form, friction, and interference drag
Maximum excess power for a propeller-driven aircraft occurs at L/D
MAX. True or false?
True
As altitude increases, power available ______
Decreases
When lowering the flaps (full) during an approach. What happens to drag and visibility?
Drag increases, visibility improves
What is lift defined as?
The component of aerodynamic force that acts perpendicular to the relative wind
