Definitions

Question 1

Angle of Attack

Answer 1

The angle, Measured in degrees between the chord and the relative wind.

Question 2

Adverse Yaw

Answer 2

Asymmetry of lift, therefore drag caused by the displacement of the ailerons.

Question 3

Gyroscopic Precession

Answer 3

A force applied to a rotating disc (propeller) acts 90 degrees downstream, in the directions of rotation.

Question 4

Torque

Answer 4

Newton’s 3rd law: for every action there is a equal and opposite reaction reaction. The fuselage rotates counterclockwise imparting an increased load on the left wheel, causing more drag on the main wheel.

Question 5

P-Factor

Answer 5

A yawing tendency at high power settings and a high angle of attack caused by asymmetric thrust due to a asymmetric angle of attack of the upward rotating propeller and the downward rotting propeller.

Question 6

Relative Wind

Answer 6

The direction of the airflow with the respect to the wing i.e. When you stick your hand out the window of a car you feel the relative wind.

Question 7

Chord Line

Answer 7

An imaginary straight line formed from the vortex of the leading edge to the vortex of the trailing edge of an airfoil.

Question 8

Root

Answer 8

The end of the wing closest to the fuselage, the inboard sections

Question 9

Span

Answer 9

The length of the wing between the wingtips.

Question 10

Tip (Wing Tip)

Answer 10

The end of the wing farthest from the fuselage.

Question 11

Trailing Edge

Answer 11

The part of the wing or other flying surface that is most aft.

Question 12

Leading Edge

Answer 12

The part of the wing or other flying surface that is farthest forward.

Question 13

Trim Speed

Answer 13

For every power setting there two speeds an airplane can fly, except one. The two speeds: One speed is low angle of attack, one speed is at a high angle of attack.
Exception: the speed at maximum LOD (Lift over drag)

Question 14

Lift

Answer 14

The recipe for lift = Relative wind + angle of attack.