Performance Flashcards
The maximum altitude for speed brakes extension ?
No limitations
WING ANTI-ICING supplied by APU AIR BLEED is allowed. True or False ?
False
Is flex take off thrust allowed on contaminated runway ?
No
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 ?
True
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 ?
False, the aircraft continues to descent according to the selected rate of descent
In descent, with the FMA reading SPD / DES / NAV, if the HDG KNOB on FCU is pulled, the FMA will turn to which modes ?
SPD/ VS / HDG
Take off and landing performance calculation: what are the coefficient applied to wind parameters ?
Headwind: 50%
Tailwind: 150%
Do you take into account reverses in take off performance calculations on dry runways ?
No
Do you take into account reverses in take off performance calculations on wet runways ?
Yes but it should not improve TOW compared to a dry runway computation
Do you take into account reverses in take off performance calculations on contaminated runways ?
Yes, provided TOW is not increased compared to a dry runway computation
A fluid contamination is equivalent to wet, up to a maximum depth of 3 mm (1/8 in). True or False ?
True
Definition of LRC ?
99 % of max range
Definition of REC MAX ?
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.
Definition of RLD ?
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.
Definition of In flight Landing Distance (LD) and Factored Landing Distance (FLD)?
- 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.
Dispatch landing distance computation on dry runways takes into account reversers. True or False ?
False
Dispatch landing distance computation on wet runways takes into account reversers. True or False ?
False. Wet distance is dry distance x 1.15
Dispatch landing distance computation on contaminated runways takes into account reversers. True or False ?
True. But landing weight on contaminated cannot exceed the landing weight on wet runway
How is Vapp computed ?
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
When you should compute again inflight landing performance computation according to FCTM ? (Manex A request to compute at every approach preparation).
- Runway change (or diversion)
- Intended use of autoland or autobrake
- Intended use of reverse idle
- Degradation of runway conditions
- Inflight failure
How do you compute inflight landing performance if you plan to use reverse idle only on a wet runway ?
(Airbus recommends max reverse on wet or contaminated runways.)
Check unfactored LD < LDA with:
- no reverse
- RWYCC2 ( medium to poor)
What is the distance of 90° alignment on the runway taken into account by EFB for take off perf computations ?
~ 12 m (see FAQ on Ops Lib )
What do you have to check if you do not want to use autobrake MED but that FLD with autobrake LO > LDA ?
1/ RWYCC 6 or 5
2 / LD autobrake LO < LDA
3 / FLD manual < LDA
Why is there a margin between the CG operational envelope and the certified envelope ?
To take into account the real variations: pax weights, pax distribution, true loading location, gear and flaps retraction, crew movements…
