August 13, 20214 yr The following happens when I try to use GPS Steering mode with a Laminar Cessna 172 and an S-TEC 55 autopilot: • Use GNS 530 to created flight plan in GNS 530: for example: KBOS->KPVD • DTRK=221 • Set heading bug to 220 • Set CDI to GPS • Set nav/gps toggle on instrument panel to GPS • Take off • GNS 530 nav display show KPVD as GPS destination • Set auto pilot to maintain heading=220 / altitude=4500 • Press NAV twice: AP indicates “GPSS” • DTK=221 / TRK=231 • The 231 heading intersected the GPS track, but, after intersecting GPS line, it held the 231 TRK as plane went further and further off course I wonder whether that this may have something to do with the Gauge Options and/or the Settings Panel – my current settings are below. Gauge Options GPS Source option • currently set et on “Auto” Settings panel • Connect gps to autopilot • Connect gps to HSI • Connect CDI mode to nav/gps switch (sync=gps->sim) • Note: switch does nothing when I press CDI button on 530 • “Use Simulator GPS Commands” NOT CHECKED • RXP VERSION: 2.4.21.3 / “UP TO DATE” • X-PLANE VERSION: 11.55 • WINDOWS VERSION Edition Windows 10 Home Version 20H2 Installed on 2021-04-22 OS build 19042.1110 Experience Windows Feature Experience Pack 120.2212.3530.0 Many thanks.
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