CH.3C Aerodynamics of Maneuvering Flight

Question 1

TORQUE

Answer 1

Newton’s 3rd law
‘for every action there is an equal and opposite reaction’
Torque effect is greatest at low airspeeds, high power settings and high angles of attack

Question 2

Explain left-turning tendencies

Answer 2

The force of torque gyroscopic precession, asymmetrical thrust and spiraling slipstream during high-power, low-airspeed flight conditions

Question 3

GYROSCOPIC PRECESSION

Answer 3

The resultant reaction when a force is applied to the rim of a rotating disc
The reaction to a force applied to a gyro acts in the direction of rotation and approximately 90º ahead of the point where force is applied

Question 4

ASYMMETRICAL THRUST

Answer 4

P-factor

The descending blade of the propeller takes a greater ‘bite’ of air than the ascending blade on the other side

Question 5

P-FACTOR

Answer 5

Causes airplane to ya to the left at high angles of attack
P-factor results from the descending propeller blade on the right producing more thrust than the ascending blade on the left

Question 6

SPIRALING SLIPSTREAM

Answer 6

Causes a change in airflow around the vertical stabilizer resulting in left yaw

Question 7

MAXIMUM LIFT-TO-DRAG RATIO

Answer 7

L/Dmax The best glide angle and the maximum gliding distance

Question 8

GLIDE RATIO

Answer 8

The distance an airplane will travel forward, without power, in relation to altitude loss

Question 9

GLIDE ANGLE

Answer 9

The angle between the actual glide path of y our airplane and the horizon. This increases as drag increases and decreases as drag decreases

Question 10

CENTRIPETAL FORCE

Answer 10

The horizontal component of lift creates a force directed inward toward the center of rotation

Question 11

CENTRIFUGAL FORCE

Answer 11

The opposing impetus (not a true force) force that results from the effect of inertia during the turn

Question 12

ADVERSE YAW

Answer 12

yawing tendency towards the outside of the turn

Question 13

OVERBANKING TENDENCY

Answer 13

caused by additional lift on the outside, or raised, wing - producing more lift and the airplane tends to roll beyond the desired bank angle
to correct for overbank - use that small amount of opposite aileron away from the turn

Question 14

RATE OF TURN

Answer 14

The amount of time it takes for an airplane to turn a specified number of degrees

Question 15

RADIUS OF TURN

Answer 15

The amount of horizontal distance an aircraft uses to complete a turn

Question 16

LOAD FACTOR

Answer 16

The ratio of the load supported by the airplane’s wings to the actual weight of the aircraft and its contents

Question 17

Accelerated turns

Answer 17

A stall that occurs wit g-forces

Question 18

Limit load factor

Answer 18

Stress that an airplane can withstand before structural damage

Question 19

V-g diagram

Answer 19

Graph that depicts limit load factor at different speeds (POH)

Question 20

Design maneuvering speed (Va)

Answer 20

Max speed where full, abrupt control movement before structural damage occurs