Aircraft Genenral Flashcards
Kích thước dài rộng sải cánh mbay
CEO: Dài 44.51m Rộng 3.95m
Sải cánh 34.1m Horizontal Stabilize 12.45m
Cửa xuống đến đất 3.46m
Đuôi xuống đến đất 11.75m
NEO: Sải cánh 35.8m
Sharklet 2.43m
Unpressurized compartments of aircraft
- nose gear bay
- nose aircraft
- air condition comp.
- main gear bay
- tail cone
Minimum turning radius
- Slow conditions turning
- Symmetrical thrust
- No differential barking
- Dry SurfaceMinimum turn từ cánh tà đến mũi mbay 28.3m
Recommended 180turn technique, on dry RW, turn width 30m without margin
RNAV
A navigation system which permits aircraft operation on any desired flight plan within the coverage of ground stations (ILS, VOR, DME, etc.) or space-based navigation aids (GNSS/GPS) or within the limits of the capability of self-contained aids, or a combination of these
RNP approach and advance compared to Non-precision approach
RNP procedures allow crews to fly approaches using internal and very accurate nav tools, instead of traditionally using external guidance aids.
Advance in technology have modified the way non-precision approach can be flown: from traditional step down approach to the CDFA concept
CDFA concept
- Stabilized final approach
- Smooth transition from instrument to visual flying
Different between RNP and RNP AR approach
RNP and RNP AR approach are basically defined as RNAV approach within a performance based navigation concept
The main difference is that They do not require ground facilities for nav. AR approach might have “curved” final segments, allow to reduce obstacle clearance compared to RNP approach
RNP approac
- Safety benefit: RNP replace circling and visual appr. RNP with value down to 0.3 allow aircraft to follow precise 3D curved flight paths. Stabilized appr with smooth and constant descent slope. Align with RW axis. Reduce workload
- Operation benefit: time and fuel saving. Reduce on radar vectoring, speed assign. More efficient use of airspace
Takeoff surveillance function
Check the takeoff data that crew enters and selects on the FMS pages; that are associated with the active flight plan only
Optimum FLT
Rec Max altitude
OPT FLT: require a 5 min minimum cruise at a minimum cruise flight level of FL 100
REC Max: provide with a 0.3g buffet margin, a minimum rate of climb at Max CL thrust, and level flight at Max CRZ thrust
Back up Nav
Provide simplified point-to-point GPIRS and IRS based navigation incase of a dual FMGC failure
MCDU continuously memorizes the active flight plan in its memory
MCDU message
Display 2 types in 2 colors
- Type I : a direct result of a pilot action
- Type II : infor about a situation, or a call for pilot action
Amber: Important (Nav, EFIS repeat, Data entry)
White: Less important (advisory only)
Energy Circle
It is displayed on the NDs during descent, when HDG or TRK mode is selected.
It represents the required distance to land from the aircraft’s position down to airport elevation at VAPP
Perf Factor
Idle Factor
Perf Factor: use to correct the predicted fuel flow that is used for computation of the fuel predictions. The correction is applied throughout the entire flight, and modifies the performance predictions and the Econ speed
Idle Factor: FMGS use to adjust the computation of the vertical profile during the descent phase (Idle segment)
Alpha Floor
Is a protection that commands TOGA thrust, regardless of thrust levers’ positions. Available from lift-off to 100 ft RA on approach (when the aircraft reaches a very high angle of attack)
Go around soft mode
Engaged when crew set thrust levers to TOGA then back to FLX/MCT during go around:
- both engines are operative
- slats/flaps are extended
- aircraft below go around thrust reduction altitude, and below 1600ft
- aircraft in flight and not perform a touch and go
AP/FD remain engaged during a Non precision approach at?
- minimum minus 50ft, or
- 400 ft AGL (if no minimum entered)
Alpha-floor is lost when?
- SFCC 1 and FAC 2, or
- SFCC 2 and FAC 1, or
- both FCU channels, or
- 1 EIU, or
- both FMGCs
- is lost under alternate or direct flight control law
- is lost in engine-out, when slats/flaps are extended
Windshear detection function
Provide by FAC in takeoff and approach phase in following conditions:
- at takeoff 3s after liftoff up to 1300ft RA
- at landing, from 1300 ft RA to 50ft RA
- with at least Conf 1 selected
CVR is energized automatically when
- on ground during the first 5 min after aircraft electrical network is energized
- on ground with 1 engine running
- in flight
