Ground School: Aero

Question 1

Approach stall occurs at what AOA?

Answer 1

29-30 Units

Question 2

Clean stall occurs at what AOA?

Answer 2

26 Units

Question 3

Optimum AOA

Answer 3

17 Units

Question 4

Mach 0.92-0.95

Answer 4

Some wing heaviness, up to 3/4 lateral stick required to maintain level flight

Question 5

T/O roll with full flap, dry runway

Answer 5

3450 feet

Question 6

Ruder Shakers

Answer 6

Initiated front left; shakes pedals in both cockpits; 21.5 units

Question 7

BINGO

Answer 7

161 CAS

Question 8

45 degree, upright spin rate of descent is?

Answer 8

15,000 fpm

Question 9

Airspeed for -60 degree inverted spin?

Answer 9

50-120

Question 10

Thrust required curve shifts (blank) with weight addition

Answer 10

Up and to the right

Question 11

Thrust is affected by?

Answer 11

Temp, alt, RPM

Question 12

What improves transonic flight?

Answer 12

wing sweep, and low thickness-to-chord ratio

Question 13

Longer roll out on landing caused by…

Answer 13

density altitude increase, true airspeed increase, indicated airspeed remains constant

Question 14

Two pilots moves CG…?

Answer 14

Forward. Increases stability.

Question 15

CG moving aft…?

Answer 15

Decreases stability, increases maneuverability

Question 16

External stores decrease AOA by…

Answer 16

1 AOA for all configurations

Question 17

Spiral divergence

Answer 17

Strong directional, weak lateral

Question 18

Mach Tuckunder

Answer 18

0.8, AC moves aft, nose pitches down

Question 19

Max Abort

Answer 19

125 (not 129)

Question 20

Density altitude is high, pressure altitude is high, density of air is…?

Answer 20

LOW

Question 21

What shifts the aircraft CG?

Answer 21

Fuel burn, gear and flap movement

Question 22

Force divergent mach number

Answer 22

where the coefficient of drag and total drag increase rapidly due to wave drag; FIRST SHOCKWAVE

Question 23

Disadvantage of swept wing

Answer 23

High AOA stall decreased coefficient of lift

Question 24

Mach number (definition)

Answer 24

TAS with respect to local speed of sound

Question 25

The airspeed/AOA for (blank), (blank) and (blank) are found at L/D max

Answer 25

Max endurance, max climb angle, and max power off glide range

Question 26

Thrust is (blank) on longitudinal stability

Answer 26

Neutral

Question 27

Area rule

Answer 27

Not a T-45 design

Question 28

What reduces rudder "buzz"?

Answer 28

Rudder shock stabilization strips

Question 29

Vortex generators

Answer 29

improve stability, performance and/or flight control effectiveness. Forces wing downwash further below the stab, eliminating pitch up tendencies. Improves slow speed flight by redirecting wing airflow and re-energizing the boundary layer

Question 30

Stall strips

Answer 30

cause root to stall at lower AOA by inducing premature boundary layer separation

Question 31

Force to overcome rudder blowout?

Answer 31

greater than 250lbs

Question 32

Uncontrollable pitch up happens when?

Answer 32

AC moves in front of CG at stall (tip stall)

Question 33

Q

Answer 33

airmass flow in slugs per second

Question 34

Critical mach number (definition)

Answer 34

the free stream mach number at which a local mach number of 1.0 is attained at any point on the body under consideration (first hit supersonic flow)

Question 35

Dutch roll

Answer 35

low airspeed (below 220 knots), strong lateral, weak directional

Question 36

Nose pitch up 20 degrees

Answer 36

accelerated stall w/no external stores, second indication of impending stall

Question 37

Crosswind tendencies?

Answer 37

Nose will turn away from the crosswind

Question 38

Stall warning at 1/2 flaps

Answer 38

21.5 units

Question 39

Rudder opposite for which type of spins?

Answer 39

BOTH

Question 40

Inverted spin characterized by?

Answer 40

0 AOA, Neg Gs, Turn needle in the direction of spin

Question 41

Critical mach number? (for the T45)

Answer 41

0.8; slight nose down pitch

Question 42

CG forward

Answer 42

increases stability

Question 43

Thrust is neutral with respect to...?

Answer 43

longitudinal stability

Question 44

Aileron position for INVERTED spin recovery

Answer 44

away from turn needle

Question 45

Aileron position for UPRIGHT spin recovery

Answer 45

into the turn needle

Question 46

Force divergent mach number for T45?

Answer 46

0.85

Question 47

Approach configuration stall buffet happens when?

Answer 47

1 knot above stall speed

Question 48

High speed and low speed characteristics improved by?

Answer 48

Vortex generators

Question 49

How does the T45 react to flap extension?

Answer 49

Balloon, settle, reduced stability

Question 50

1100, 150, 10500 calm

Answer 50

300 220 80 500