Performance

Question 1

TFLEX Limitations:-

Answer 1

FLEX takeoff is not permitted on contaminated runways.

Some items listed in the MEL and CDL do not permit a flexible takeoff.

Question 2

Takeoff performance on contaminated runways can be calculated with the benefit of thrust reversers. However, it is not allowed to take off at a weight higher than the weight on a dry runway.

For fluid contaminants, takeoff performance data are provided up to the following depths:

Dry snow: 100 mm (4 in)

Wet snow: 20 mm (4/5 in)

Standing water: 15 mm (3/5 in)

Slush: 15 mm (3/5 in).

Performance computations for depths above the real depth of contamination on the runway may provide results that are better than the real aircraft performance, because of the excess drag that improves the stopping distance.
Airbus recommends to retain the takeoff speeds and thrust setting of the…… MTOW(perf) resulting from two computations: one with the depth above the reported depth and one with the depth below.

Note:
The Airbus OIS TAKEOFF PERF application automatically makes this double computation.
L1 Derated takeoff is allowed on contaminated runways.

Answer 2

lower

Question 3

The aircraft can be dispatched with deferred MEL or CDL items.

MEL or CDL items that affect takeoff performance are:

Answer 3

MEL items that reduce braking capabilities (brakes, spoilers, thrust reversers)

MEL items that have an effect on thrust available (engine anti-ice valve stuck open)

MEL items that may lead to a reduced systems efficiency (rudder actuator, DFS, EDP)

CDL items that increase aircraft drag (seals, fairings).

Question 4

Turbulence speeds are recommended when the aircraft flies in a turbulent atmosphere.

The recommended turbulence speed is between…….

The MAX TURB function indicated on the MFD PERF CRZ page displays the maximal speed/Mach not to exceed according to this recommendation.

Answer 4

Green Dot and 300 kt/M 0.85.

Question 5

LOWEST SELECTABLE SPEED (VLS)

VLS is the lowest selectable speed. VLS is used to determine…..

Answer 5

the Final Approach Speed (VAPP) in normal conditions.

Question 6

REFERENCE SPEED (VREF)
VREF is equal to the VLS of CONF FULL. VREF is used to determine

Answer 6

the Final Approach Speed (VAPP) when a system failure affects the landing performance.

Question 7

FINAL APPROACH SPEED (VAPP)

VAPP is the speed of the aircraft when

Answer 7

crossing the runway threshold. The flaps/slats are in the landing configuration, and the landing gears are extended.

Question 8

GO-AROUND SPEED
In the case of a missed approach, the go-around climb gradient is calculated at the go-around speed.

The standard go-around speed is 1.23 VS1G of the go-around configuration. For approaches with a decision height at or above 200 ft, where approach climb performance is found restrictive, the go-around speed can be increased up to

Answer 8

1.3 VS1G of the go-around configuration.