IF in the 737 you need to arm LOC before APP then you should do it early since the principle is to capture LOC before GS (but my best guess is you can arm APP and it will arm both LOC and GS) Some wait until aircraft is within 90* of final approach course to arm, some just arm it whenever they are clear for the approach. When you are clear for the approach, you can arm APP and still following the STAR until the aircraft capture LOC and then GS. ILS - The plane captures after the satellite-based waypoints of the STAR the two "guiding beams° of the runway for lateral and vertical guidance and could perform theoretically an automatic landing. Sorry if my english is not so good, I am originally from Germany □ Besides autoland which keep AP until vacating the runway, turning the AP off depends on company policy and/or pilot favor. If the aircraft/pilots capability can do all of them, we will use the best one of all if available. It would be nice if you could add some information or correct me where I am wrong! before the Minima turn of the AP and fly by hand Fly the Descend with AP and LNAV/VNAV active reduce the ALT before the FAF to the Minima to allow the Airplane to descend The waypoints lead at the approach to the minima where the pilot has to see the runway und fly the last part by hand RNP makes a statement about the accuracy of navigation performance.Ġ.3 stands for maximum deviation of 0.3 NM, RNAV - Satellite-supported area navigation with freely selectable waypoints. switch of the AP before Minima or at 2000 ft (?) and fly by hand hopefully the Airplane will descend to the RWY before the FAF reduce the ALT to the Minima tune in the RWY Course at the Course Knobs tune in the LOC Frequency at NAV 1 and 2 To get the vertical alignment of the approach. The DME shows the distance to the runway and corresponding charts with distance / altitude help the pilot LOC/DME - the localiser provides lateral orientation, but no glideslope for vertical guidance, VOR/DME - a non-precision approach where the directional beacon VOR provides lateral guidance,īut does not provide any information about the glide path. NDB approach - a non-precision approach where an omnidirectional beacon is displayed on theĪDF display, often in conjunction with DME, which indicates the distance to the Runway deactivate the Autopilot at 2000 ft (?) above ground and landing by hand or do an Autoland Airplane will hopefully descend to the runway along the ILS glide path. shortly before capturing the Glideslope, push LOC and than APP turn in the ILS Course at both Course knobs turn in the ILS Frequencies at NAV 1 and 2 get a "logical" flight path in the FMC, reduce the programed speed at the FAF (Final Approach Fix) to Flap 15 Speed (VREF +15) where the ILS will be captured program the STAR and ILS Approach in the FMC, select a Flap/Speed (40/145) setting at the REF Page ILS - The plane captures after the satellite-based waypoints of the STAR the two "guiding beams° of the runway for lateral and vertical guidance and could perform theoretically an automatic landing. Sorry if my english is not so good, I am originally from Germany :-) "How long is the pilot flying the respective approach by autopilot, from what point does he have to turn of the AP and have to fly by hand? "What approach procedure (ILS/LOC/RNAV) does the crew use and who decide it?" I use the PMDG 737 NG in P3DV4 and trying to get the procedures as realistic as possible.
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