Stability and Load Factor Quiz

Question 1

What determines the longitudinal stability of an airplane?

Answer 1

The location of the CG with respect to the center of lift.

Question 2

Changes in the center of pressure of a wing affect the aircrafts -

Answer 2

aerodynamic balance and controllability.

Question 3

The amount of excess load that can be imposed on the wing of an airplane depends upon

Answer 3

speed of the airplane

Question 4

An airplane has been loaded in such a manner that the CG is located aft of the aft CG limit. One undesirable flight characteristic a pilot might experience with this airplane would be -

Answer 4

difficulty in recovering from a stalled condition.

Question 5

Loading an airplane to the most aft CG will cause the airplane to be

Answer 5

less stable at all speeds

Question 6

During an approach to a stall, an increased load factor will cause the airplane to

Answer 6

stall at a higher airspeed

Question 7

Wingtip vortices are created only when an aircraft is

Answer 7

developing lift

Question 8

The greatest vortex strength occurs when the generating aircraft is

Answer 8

heavy, clean, and slow.

Question 9

The wind condition that requires maximum caution when avoiding wake turbulence on landing is a

Answer 9

light, quartering wind

Question 10

When departing behind a heavy aircraft, the pilot should avoid wake turbulence by maneuvering the aircraft

Answer 10

above and upwind from the heavy aircraft.

Question 11

What are the two types of stability?

Answer 11

Static and Dynamic

Question 12

What are the three sub-types of static stability?

Answer 12

Positive, Neutral, Negative

Question 13

Which type of static stability must one have in order to have any dynamic stability?

Answer 13

Positive Static Stability

Question 14

Describe positive dynamic stability.

Answer 14

Over time, the motion of the displaced object decreases in amplitude and, because it is positive, the object displaced returns toward the equilibrium state

Question 15

What is a wing dihedral?

Answer 15

The wing tip is higher than the wing root.

Question 16

How does dihedral increase roll stability?

Answer 16

the lower wing has a higher AOA.

Question 17

How does dihedral increase roll stability?

Answer 17

Air that is trapped between the wing and the landing surface. It reduces induced drag.

Question 18

What effect does ground effect have on landing round out and flare?

Answer 18

Ground effect may make the aircraft float down the runway and fly at a slower airspeed compared to cruise

Question 19

When is an aircraft producing wing tip vortices?

Answer 19

Wing tip vortices are produced when the wing is creating lift

Question 20

What are the conditions that would create the largest wake turbulence?

Answer 20

The conditions are heavy, clean, and slow

Question 21

What is the procedure for avoiding wake turbulence from a large aircraft departing before you?

Answer 21

We need to rotate prior to the point at which the preceding aircraft rotated when taking off behind another aircraft, continue to climb and stay above their flight path, or wait 2-3 minutes

Question 22

What is a load factor?

Answer 22

Load factor is a ratio of the total load supported by the wings to the actual weight of the aircraft and its contents. Load factor is expressed in “Gs.”