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Performance > The descent, Landing, SEP part 1 (04-06-18) > Flashcards

The descent, Landing, SEP part 1 (04-06-18) Flashcards

1
Q

How does NGM relate to NAM?

A

NGM = NAM x GS/TAS

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2
Q

What happens to IAS when descending at a constant M?

A

It increases

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3
Q

What happens to AoA when descending at a constant M?

A

It decreases

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4
Q

What happens to CL when descending at a constant M?

A

It decreases

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5
Q

What happens to Gradient % when descending at a constant M?

A

It increases

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6
Q

What happens to TAS when descending at a constant M?

A

it increases

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7
Q

What happens to Pitch when descending at a constant M?

A

it decreases

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8
Q

What happens to RoD when descending at a constant M?

A

it increases

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9
Q

What happens to AoA when descending at a constant IAS?

A

It remains constant

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10
Q

What happens to CL when descending at a constant IAS?

A

it remains constant

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11
Q

What happens to gradient % when descending at a constant IAS?

A

it remains constant

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12
Q

What happens to TAS when descending at a constant IAS?

A

It decreases

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13
Q

What happens to pitch when descending at a constant IAS?

A

It remains constant

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14
Q

What happens to RoD when descending at a constant IAS?

A

it decreases

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15
Q

Why does pitch decrease when descending at constant M?

A

in the descent we must speed up as an IAS by pitching down.

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16
Q

Why does gradient of descent remain constant when descending at constant IAS?

A

thrust remains constant and weight is assumed to also remain constant.

Drag remains constant with decreasing altitude and therefore gradient.

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17
Q

What determines RoD?

A

Thrust or power deficit

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18
Q

What is the speed for best range in the descent?

A

Vmd

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19
Q

What speed is best for obstacle avoidance?

A

Best range speed (Vmd)

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20
Q

What is the speed for best endurance?

A

Vmp

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21
Q

What is the effect of increased mass on the range of a glide?

A

There is no effect as long as Vmd is still flown

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22
Q

What is the effect of increased flap on the range of a glide?

A

Range decreases, due to clean wings having the best range.

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23
Q

What is the effect of changes in AoA from Vmd on the range of a glide?

A

Range decreases

24
Q

What is the effect of wind on the range of a glide?

A

HWC reduces range

TWC increases range

25
Q

What is the effect of increased mass on the endurance of a glide?

A

It decreases

26
Q

What is the effect of increased flap on the endurance of a glide?

A

It decreases, due to clean wings being best.

27
Q

What is the effect of flying an AoA different to Vmp on the endurance of a glide?

A

It decreases

28
Q

What is the effect of wind on the endurance of a glide?

A

There is no effect

29
Q

What are the benefits of a continuous descent approach?

A

more economical

less noisy

more comfortable

30
Q

What is the general rule of thumb for altitude and distance from runway?

A

Altitude = 3 x distance from altitude x 100

31
Q

What distance if required for a significant deceleration?

32
Q

What is VLO?

A

The fastest speed for landing gear operation.

33
Q

What is VLE?

A

The fastest speed with landing gear extended

34
Q

What is Vapp?

A

Approach speed (1.33Vs)

35
Q

What is Vref?

A

Landing reference speed (AKA VAT - V at threshold)

Class A - 1.23VSRO

Class B - 1.3VSO

36
Q

When can a baulked landing occur?

A

below decision height

37
Q

What are the considerations for a missed approach?

A

OEI

Gear Up

Flaps in approach position

Climb speed >= 1.2VS1

MCT

38
Q

What are the considerations for a baulked landing?

A

AEO (but can be done on OEI)

gear down

flaps in landing position

TOGA (but only 8 seconds after selection)

Climb speed = Vref

39
Q

What are the gross climb gradients required for a missed approach for class A aircraft?

A

2 eng - 2.1%

3 eng - 2.4%

4 eng - 2.7%

40
Q

What is the gross climb gradient required for a missed approach for class B aircraft?

A

OEI - 0.75%

41
Q

What are the gross climb gradients required for a baulked landing for class A aircraft?

A

OEI - 2.5%

AEO - 3.5%

42
Q

What is the gross climb gradient required for a baulked landing for class B aircraft?

A

AEO - 2.5%

43
Q

What is the approach profile with any go around conditions.

44
Q

What is commital height?

A

the last height at which you can do a OEI go around procedure on a class B aircraft.

45
Q

At what point does the landing profile begin?

A

50ft

35ft for a steep class A approach (>4.5deg)

46
Q

What is Vref limited by?

A

It cant be less than Vmcl

47
Q

How much can be added to Vref for ice accretion?

48
Q

How much can be added to Vref for gusty wind?

49
Q

At what point is a go around prohibited?

A

once reverse thrust is selected

50
Q

What makes up LDR?

A

LD plus public safety factor

51
Q

What is the public safety factor for a jet?

52
Q

What is the public safety factor for a prop?

53
Q

What are the class B TO performance factors?

A

Paved wet - 1

Grass dry - 1.2

Grass wet - 1.3

Upslope - 5% for every 1% slope

Downslope - don’t care

54
Q

What is the class B TO regulation factor for a balanced airfield?

A

TODR = TOD x 1.25

55
Q

What are the class B TO regulation factors for an unbalanced airfield?

A

the most limiting of:

TORR = TOD x 1

TODR = TOD x 1.15

ASDR = TOD x 1.3

56
Q

When choosing a runway, what are the most important factors?

A

length of runway

surface type

Performance (12 decks)

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