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legoboyvdlp / A320-family

A high-quality Airbus A320 simulation for the open source simulator, FlightGear
GNU General Public License v2.0
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Bug - NAV mode behaves oddly after landing #324

Closed linguisticmind closed 1 month ago

linguisticmind commented 1 month ago

Describe the bug You create a flightplan, fly it and land at the destination airport. Then, within the same session, you create a new flightplan, take off, engage the NAV mode and it behaves oddly.

To Reproduce Steps to reproduce the behaviour: Recorded a video to show exactly what is happening: https://youtu.be/I2shoi4N5mw But in a nutshell:

  1. Start up the aircraft (e.g. with the "Ready for Takeoff" preset)
  2. Create a flightplan
  3. Fly the route and land at the destination
  4. Without ending the session, INIT a new FROM/TO in the MCDU, and create a new flightplan
  5. Take off and try engaging the autopilot in the NAV mode to observe the odd behavior

Expected behaviour NAV mode working after landing, creating a new flightplan, and taking off again—all within the same session.

Screenshots Recorded a video: https://youtu.be/I2shoi4N5mw

System (please complete the following information):

Additional context I observed similar unexpected behavior when using DIR in the MCDU to go to an arbitrary waypoint while in flight. The aircraft starts flying in unexpected directions, not following the flightplan.

Octal450 commented 1 month ago

Use of the ROUTE MANAGER is not supported. I am surprised it's not disabled? I will have to disable it. The issue is due to the route manager does not handle waypoint sequencing properly. So the wrong waypoint is selected.

If you can demonstrate the problem using the MCDU ONLY, then I can reopen the issue.

Kind Regards, Josh

linguisticmind commented 1 month ago

@Octal450 Could you give me some pointers as to how to do it through the MCDU? That's what I wanted to do initially, and I tried following this tutorial (link to the place where he selects a SID), but no SIDs appear for me in the MCDU (see screenshot).

Same is true for approaches and airways. I can't select any of those in the MCDU, but in that tutorial he does.

Never mind. I was able to get it to work by installing the navdata from https://github.com/l0k1/fg-navaiddata as explained in the README. I only tried https://github.com/jojo2357/flightgear-star-sid-manager before, and it looks like there's only data for a limited number of airports in that repo.

Thanks for your great work!

linguisticmind commented 1 month ago

@Octal450 I tried reproducing the problem using the MCDU, and I was able to fly the route for the second time, but the route didn't display properly on the NAV display or in the FlightGear's built-in map. I created a new issue for this.