General Category > Unofficial F/A-18 Acceleration Pack board

FA/18 CTD with SEQ button

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chupaflier:
It always works for me when I create a flight plan before I my flight. No need to reloaded once in the cockpit. The only times when it does not work is when I do NOT create a flight plan at all. Have yet to try to create plan after sitting in the cockpit. I'll try it and post results.

Great Ozzie:
Virtuali,
 
If an Aircraft/Flight Plan is saved then:

If Free Flight > Load... > "Select Flight" > FLY NOW! then:

GPS screen will be blank (no waypoints).  However when selecting WPT in the DDI the Waypoint Bearing Pointer appears along with waypoint info in upper right of DDI and in HUD (waypoint info from the flight plan that was saved with the flight).

if SEQ is selected CTD WILL OCCUR.

If Freeflight > Flight Planner (then Flight Plan is loaded or created from this screen) > Free Flight (select aircraft etc...) > FLY NOW!

CTD WILL NOT OCCUR after SEQ select.

So the difference is how the "Flight" itself is loaded (from Free Flight > Load... = crash)

Also the tip to preventing CTD is...

Before selecting WPT (certainly before selecting SEQ) select GPS in the DDI and verify that there are Waypoints listed.  If yes you're good to go.

If not > display toolbar > Flights > Flight Planner... > Select Flight Plan (why you have to "resave" the flight plan after clicking OK is beyond me) and then this "should" cause the actual Waypoints to be displayed in the DDI.

At least this is what I "stumbled" upon and I hope it "resolves" the issue.

Rob O.

virtuali:
Rob,

thank you for giving a precise repro case. Now I've finally realized what's going on:

The HSI relies on a Simconnect notification event that is fired up when a flight plan is loaded, to update its waypoints list from the internal gps (The F/A-18 uses the FSX default GPS engine).

Unfortunately, it looks like Simconnect notifies the program that a flight plan has been loaded only when the *user* manually load it, not when the flight plan is automatically loaded together with a flight, that is the case if the flight was saved with a flight plan active.

So, without that notification, the F/A-18 gauges lose its synchronization between the gps flight plan and its internal data list, and that creates a crash.


The workaround for this is:

- As a general rule, do not save a flight when a flight plan is active. Load the flight, then load the flight plane afterwards when the airplane is ready to fly.

- If you already have flights saved with a flight plan active, before pushing the SEQ button, load the same flight plan again from the flight planner menu. This will trigger the flight plan loaded notification correctly, and the SEQ button will now work.

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