33

The flight director is related to the autopilot system. It displays a guide on the artificial horizon, which shows the attitude of the airplane, but does nothing to control the plane. The guide represents a reference of an airplane attitude that will follow the parameters set for the autopilot. The pilot can manually fly the plane directly where the flight ...


9

It lets the pilot know what the autopilot would do if it were flying instead, by displaying an indicator, usually a miniature pink plane or line, on the artificial horizon. The difference between the autopilot and flight director is that the autopilot flies the plane, the flight director gives the pilot an idea of what the autopilot would like to do if it ...


8

It's mostly up to points 2 and 3 on your list rather than personal preference: Note that most ATC instructions (beit on departure,cruise or initial approach) will ask of you to fly a specific heading and/or a specific climb rate (v/s). This makes the hdg/vs mode the 'standard' mode to be used durring flight. This is also the mode where the F/Ds provide an ...


7

curious to know if other jets set their pitch attitude to a different value. 747-100/200 aircraft didn't have a TOGA button to press, but at the two 747 carriers I flew for in the 1990s, the flight engineer filled out a data card for takeoff and later for landing that listed the pitch attitude target for takeoff and go-arounds, both for 3-engines and 4-...


6

For a jetliner, the 'why early' is to test the auto flight system. Turning on the F/D also turns on the Flight Mode Annunciator (FMA) and displays the armed modes. So it's an early check that all systems are go. From a 777 manual, any fault will be indicated on the FMA as it reads above. Here are the flow checks pertaining to the F/D and FMA during the ...


5

It's the traditional flight instruments, integrated to work in a complementary way. For example the steering bars moving across the face of the compass so as to give the pilot visual ques for turning onto a desired heading and/or altitude. The flight director gives a visual display of the overall aircraft attitude in space. The flight director display ...


5

Some autopilots found on advanced aircraft can be engaged on selected axis only, for example Boeing 737, 747-200 & MD-11. There are three autopilot indicators on the Boeing autopilots: auto throttle, roll and pitch. Each can be in a different mode. Here a Boeing 737's autopilot roll mode is set to Heading Select (HDG SEL) while the Pitch is flown ...


4

On the Boeing 737 NG: ALT ACQ is always armed when flight directors and/or autopilot is engaged in a climb/descent mode (V/S, VNAV, LVL CHG, TO/GA, CWS P), it is however, as you suggest, inhibited in G/S and G/P (glide slope, glide path) modes. On a typical ILS, I would typically set the missed approach altitude (which would be captured during missed ...


3

The standard-operating mode for lateral navigation is the NAV mode, where the aircraft is tracked inbound RNAV-Waypoints, heading mode is of no use because you would always have to correct for the wind. ATC clearances may assign a heading to the aircraft, then the HDG mode is used for lateral navigation, how would you fly that with the TRK & FPA mode ...


2

High speed protection is still available (in normal law) in SRS (check FCOM DSC 27 20-10-20). What you will not have is the reversion mode of the autothrust to Speed. You will get the protection (THS freeze, spiral stability to 0deg, max 40 deg bank, nose up order) but thrust will remain in THR CLB. I suspect the reasoning was that SRS mode implies you ...


2

On some autopilots it is clearly possible to disconnect each axis separately as evidenced by the accident of Aeroflot flight 593. On others, including the ones used on later Airbus models (A320+; the accident was A310), it is not.


2

I don't know if you can check or set the WAAS channel number directly (and I couldn't find anything about it in the C172 G1000 manual) but even if you can there's really no point. When you load the approach, the G1000 gets the WAAS channel number from the database as part of the general approach definition and configures everything automatically. I heard or ...


2

If the airway is too far away to accurately determine which leg you are going to intercept, why would you let the G1000 pick the leg you are going to intercept? You know best what you want and, as you say, ATC may change your heading anyway. So you shouldn't intercept automatically until you are fairly sure where you are intercepting. Instead you remain ...


2

Simply: Flight Director is a system that computes desired pitch and roll from parameters like heading, altitude, vertical speed. Then an autopilot computes control surfaces deflection from given parameters: pitch and roll. So: Pilot sets altitude, heading for Flight Director. Flight director then computes pitch and roll for Autopilot (and human pilot, too). ...


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