mischka wrote:can anyone explain whats the use of using TRK instead of heading?
skyop wrote:It's been a couple weeks, but I think I'll reply anyway, for any beginners who are looking for a 777 autopilot quick-start.
Autopilot controls, from left to right, top to bottom:
A/P - Autopilot engage/disengage button
F/D - Flight director (the pink lines that show up on your attitude indicator)
A/T ARM (L/R) - Arm/disarm autothrottle for left/right engines
CLB CON - Continue climbing using the vertical speed the plane was at when this setting was first engaged
A/T - Autothrottle engage/disengage button- unlike the real 777, the autothrottle is not independent from the main autopilot, so you'll have to activate this switch AND the main autopilot to use the autothrottle
IAS <> MACH - Switch between IAS speed mode and Mach number speed mode
IAS window - Set your desired IAS speed or Mach speed here
LNAV - Tells the autopilot to follow the Route Manager settings laterally (control the heading)- this has never worked for me, the autopilot just makes meaningless circles/goes north
VNAV - Same as LNAV, except vertically (control the altitude)- never tried this setting before
FLCH - Don't know what this does
A/P DISENGAGE - Dedicated autopilot disengage button- click twice
HDG <> TRK - Switch between heading bug and course track
HDG window - Set your desired heading or course track here
Bank limits (AUTO/5/25) - Define banking limits for turning- i.e. 5 for gentle turns at cruising altitude, 25 for good maneuverability at lower speeds; auto will be fine in most cases
HOLD - Engage/disengage heading or course hold mode
V/S <> FPA - Switch between vertical speed and (whatever FPA means goes here )
V/S window - Set your desired vertical speed or (whatever FPA means goes here) here
VS/FPA - Engage/disengage vertical speed/(whatever FPA means goes here) hold mode
ALTITUDE window - Set your desired altitude here
Altitude selection setting (AUTO/1000) - Switch between automatic incrementing (AUTO) and incrementing by the thousands (1000)- this setting only helps when selecting the altitude via the knobs, this won't apply if using the Autopilot Settings dialog
HOLD - Engage/disengage altitude hold mode
LOC - Track NAV1 VOR, flying by the heading given by the NAV1 radial
APP - Track an ILS glideslope, laterally and vertically- can be overriden by LOC, HDG, and ALT (i.e. you want to maintain a certain altitude until you capture the glideslope)
A/P - Engage/disengage autopilot
F/D - Flight director
Got it? Now you know your autopilot basics!
skyop wrote:You're welcome. IMO the 777 autopilot is the most stable and well-developed in FlightGear.
The 777 have big problems with it's AP
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