APLA Flashcards

1
Q

For a jet needing LDR to not exceed 60% of LDA and a prop not exceeding 70% of LDA. How do you calculate the LDA needed for the LDR?

A

Divide LDR by the %
Eg jet LDR of 1500m needs an LDA of 2500m
1500/0.6 = 2500

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2
Q

Rearward CG advantages and disadvantages

A

ADVANTAGES:
Lower drag
Lower stall speed
Less power required
Increased range

DISADVANTAGES:
Higher Vmca
Reduced longitudinal stability

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3
Q

Forward CG advantages and disadvantages

A

ADVANTAGES:
Lower Vmca
Increased longitudinal stability

DISADVANTAGES:
More drag
Higher stall speed
More power required
Reduced range

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4
Q

What is the result of ram temperature rise

A

Thrust output from ram is less at very high speeds

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5
Q

What happens to best range speed with less weight and more TW

A

Decreases

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6
Q

What happens to best range speed with less weight and more TW

A

Decreases

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7
Q

Does AOA vary for minimum thrust in level flight with weight changes

A

No

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8
Q

Is MLRC faster or slower than max range and what happens to thrust with fuel burnt weight reduction

A

The same but has a reduction in thrust as fuel is burnt and weight reduces

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9
Q

Where is CP generally located

A

33%MAC

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10
Q

What is MAC

A

Mean aerodynamic chord is the average chord of wing accounting for sweep, washout and taper

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11
Q

Speed certification is based on the most adverse CG
What CG is Vs based on

A

Forward CG

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12
Q

Speed certification is based on the most adverse CG
What is the CG of Vmca

A

Rear CG

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13
Q

Average TAS in a climb formula

A

TAS average = ANM / ETI x 60

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14
Q

Average rate of climb formula

A

ROC = PA climbed / ETI

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15
Q

SAR formula

A

SAR= TAS / FF

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16
Q

SGR formula

A

SGR = GS / FF
Eg 450kts and FF of 4500kg per hour
450 / 4.5 = 100nm per T of fuel

17
Q

On the intergrated range tables what do you need to do to TAS with temperature

A

Increase TAS by 1kt per C above ISA
Decrease TAS by 1kt per C below ISA

18
Q

V1 is:
Vef plus ________
Atleast Vmcg plus________
Max of _______

A

Vef plus 1 second
Atleast Vmcg plus 1 second
Max of Vr

19
Q

Vr musnt be less than V1 or _____

A

1.05 Vmca

20
Q

V2:
Is reached before____
Not less than______
Not less than_______

A

Is reached before 35ft
Not less than 1.1Vmca
Not less than 1.2Vs

21
Q

If V1 is not changed what will a wet runway do to the accelerated stop limited BRW

A

Reduce it

22
Q

What will adding a stopway to ASDR do to gross weight

A

Allow a higher gross weight with a higher V1 speed

23
Q

In cruise at constant Mach and altitude , what will an increase in OAT do to TAS and SAR

A

TAS will increase and SAR will not change

24
Q

Where is the B727 CG datum

A

Just in front of the main landing gear

25
Q

What will adding a clear way to TODA do to gross weight

A

Permit a higher gross weight amd a lower V1 speed

26
Q

What will adding a clear way to TODA do to gross weight

A

Permit a higher gross weight amd a lower V1 speed

27
Q

px altitude calculation

A

PA = elevation + ((1013 - QNH) x 30’

28
Q

MTOW is the least of 3 weights

A

MBRW
Runway limit weight
Climb limit weight

29
Q

EOL is determined by deducting 45m line up allowance from the most limiting of the following three

A

ASDA
TODA
STODA (1.9%) (if applicable-only if TODA exceeds 1.9% gradient

30
Q

What is the TODR

A

115% of the distance required to reach 35ft above the runway at a speed of greater than v2 from a standing start with all engines operating

31
Q

What happens if you don’t rotate at Vr

A

Longer take off run and take of distance required

32
Q

What happens if you don’t rotate at Vr

A

Longer take off run and take of distance required

33
Q

TODR 1 inop or engine out accelerate go distance is

A

On a dry runway to accelerate from standing start with all engines,have a critical engine (1 or 3) failure at Vef,continue and reach 35 ft at not less than v2

34
Q

What happens to TODR one a wet runway

A

Height required to reach at v2 is reduced to 15ft

35
Q

What happens to TODR one a wet runway

A

Height required to reach at v2 is reduced to 15ft

36
Q

ILS allowance for landing

A

Reduce landing distance available by the greater of 300m or 13% before entering the chart

37
Q

Landing distance correction for slope

A

If runway slope exceeds 1% down, reduce LDA by 10% per 0.5% of downslope in excess of 1%

38
Q

V2 must be atleast

A

1.2vs
1.1vmca

39
Q

V2 must be atleast

A

1.2vs
1.1vmca