Performance

Question 1

The maximum altitude for speed brakes extension ?

Answer 1

No limitations

Question 2

WING ANTI-ICING supplied by APU AIR BLEED is allowed. True or False ?

Answer 2

False

Question 3

Is flex take off thrust allowed on contaminated runway ?

Answer 3

No

Question 4

An AUTOLAND procedure can be conducted with one engine failure provided procedure is completed before 1000ft AGL and DH set to 50ft. True or False ?

Answer 4

True

Question 5

When a VOR approach is performed in SELECTED MODE, with AP ON, the AP disconnects automatically when reaching MDA minus 50 ft. True or False ?

Answer 5

False, the aircraft continues to descent according to the selected rate of descent

Question 6

In descent, with the FMA reading SPD / DES / NAV, if the HDG KNOB on FCU is pulled, the FMA will turn to which modes ?

Answer 6

SPD/ VS / HDG

Question 7

Take off and landing performance calculation: what are the coefficient applied to wind parameters ?

Answer 7

Headwind: 50%
Tailwind: 150%

Question 8

Do you take into account reverses in take off performance calculations on dry runways ?

Answer 8

No

Question 9

Do you take into account reverses in take off performance calculations on wet runways ?

Answer 9

Yes but it should not improve TOW compared to a dry runway computation

Question 10

Do you take into account reverses in take off performance calculations on contaminated runways ?

Answer 10

Yes, provided TOW is not increased compared to a dry runway computation

Question 11

A fluid contamination is equivalent to wet, up to a maximum depth of 3 mm (1/8 in). True or False ?

Answer 11

True

Question 12

Definition of LRC ?

Answer 12

99 % of max range

Question 13

Definition of REC MAX ?

Answer 13

The lower of:
- Max certified altitude
- Maximum altitude at maximum cruise thrust in level flight
- Maximum altitude at maximum climb thrust with 300 ft/min vertical speed
- 1.3 g buffet limited altitude.

Question 14

Definition of RLD ?

Answer 14

Required Landing Distance
At dispatch
- Maximum manual braking initiated immediately after main gear touchdown
- Prompt selection of max reverse thrust, maintained to 70 kt, and idle thrust to full stop (when reverse thrust is taken into account)
- Antiskid system and all ground spoilers operative
- MEL/ CDL
- The regulatory dispatch factor.

Question 15

Definition of In flight Landing Distance (LD) and Factored Landing Distance (FLD)?

Answer 15

• An airborne phase of 7 s from threshold to touchdown
  -In the case of manual braking: maximum manual braking initiated immediately after main gear touchdown
  -In the case of autobrake: normal system delays in braking activation
  -Antiskid system and all ground spoilers operative
  -Prompt selection of max reverse thrust, maintained to 70 kt, and idle thrust to full stop (when reverse thrust is taken into account).
  -MEL/CDL/ECAM

Factored is to take into account possible deviations of parameters and flying techniques.

Question 16

Dispatch landing distance computation on dry runways takes into account reversers. True or False ?

Answer 16

False

Question 17

Dispatch landing distance computation on wet runways takes into account reversers. True or False ?

Answer 17

False. Wet distance is dry distance x 1.15

Question 18

Dispatch landing distance computation on contaminated runways takes into account reversers. True or False ?

Answer 18

True. But landing weight on contaminated cannot exceed the landing weight on wet runway

Question 19

How is Vapp computed ?

Answer 19

Vapp = max ( VMCL+5kt, 1,23 VS1g + correction)

Correction, highest of :
- ATHR ON = 5 kt
- Wind = 1/3 headwind ( max 15kt)
- Icing : FULL= 5 kt, 3=10kt

Question 20

When you should compute again inflight landing performance computation according to FCTM ? (Manex A request to compute at every approach preparation).

Answer 20

• Runway change (or diversion)
• Intended use of autoland or autobrake
• Intended use of reverse idle
• Degradation of runway conditions
• Inflight failure

Question 21

How do you compute inflight landing performance if you plan to use reverse idle only on a wet runway ?

Answer 21

(Airbus recommends max reverse on wet or contaminated runways.)

Check unfactored LD < LDA with:
- no reverse
- RWYCC2 ( medium to poor)

Question 22

What is the distance of 90° alignment on the runway taken into account by EFB for take off perf computations ?

Answer 22

~ 12 m (see FAQ on Ops Lib )

Question 23

What do you have to check if you do not want to use autobrake MED but that FLD with autobrake LO > LDA ?

Answer 23

1/ RWYCC 6 or 5
2 / LD autobrake LO < LDA
3 / FLD manual < LDA

Question 24

Why is there a margin between the CG operational envelope and the certified envelope ?

Answer 24

To take into account the real variations: pax weights, pax distribution, true loading location, gear and flaps retraction, crew movements…

Question 25

How much thrust reduction represents Tmax flex ?

Answer 25

-25%

Question 26

What is the recommended take off configuration in case of high altitude terrain or short runways ?

Answer 26

CONF 2 or 3, to reduce take off roll

Question 27

What is the ratio between max cruise range and LRC ?

Answer 27

LRC = 99% max range

Question 28

Definition of Vref ?

Answer 28

Vref = 1.23xVs1g conf full

Question 29

What is the minimum go around gradient in Fly Smart?

Answer 29

2,1% = minimum GA gradient (CS25) (air) (2,5% = minimum GA gradient Air-Ops (ground))

Question 30

You may disregard FLD in emergency situations. True or False ?

Answer 30

True provided LD > LDA

Question 31

What is the recommended take off configuration on high altitude airports ? On badly paved runways ?

Answer 31

CONF 2 or 3

Question 32

What is the AEO take off climb gradient at CDG in standard conditions ?

Answer 32

10 %

Question 33

What kind of GA gradient is to be inserted in Fly Smart parameters ? Air or ground ?

Answer 33

Air gradient. This is why you should convert LIDO ground GA gradient into an air gradient before insertion in Fly Smart. (Pilot tools or FCOM table).

Question 34

What is the typical difference between air and ground GA gradient in case of tailwind ?

Answer 34

10kt Tw = -0,5% for standard gradients (2,5 - 4%)

Question 35

TO PERF application takes into account RWY CC for xwind limitations. True or False ?

Answer 35

False. It takes into account RWY COND. Thus if RWY CC is lower than expected (vs RWY COND), refer to FCOM xwind limitations. (source: PilotLib Operation, Informations techniques, GRF)

Question 36

How is the wind direction changing with altitude ?

Answer 36

Turning to the right. E.g 180° at TO, 230° during climb