I've been trying IFR flight plans without a runway and approach planned, and waiting for an assignment from the approach ATC.

I recall this was a problem in the past, where the plane does a U-Turn after loading the approach to go back to the last waypoint to begin the approach, rather than just intersecting it at the most convenient point.

I thought this was fixed in a recent patch, but obviously not.  Is there some way to load an approach that won't cause this behaviour?

Edited October 15, 20205 yr by Virtual-Chris

Not that I know of.  I had one IFR low Altitude plan try to route me back 60+ miles back because it was the last waypoint in the flight plan prior to the airport.

To mitigate that I try to choose a fix fairly close to the destination airport and insert that into the IFR flight plan.  Then once I get the approach info, I wait until I pass THAT fix until I activate the approach.  Then the circle back isn't as painful.

The only thing to eliminate it I know is to enter the approach and arrival information in the flight planner, and that's not entirely accurate given how field conditions can change over the length of a flight.

I found this... which seems like a workaround... I don't relish having to do this on the G1000 though. 😞

 

 

 

1 hour ago, Virtual-Chris said:

I've been trying IFR flight plans without a runway and approach planned, and waiting for an assignment from the approach ATC.

I recall this was a problem in the past, where the plane does a U-Turn after loading the approach to go back to the last waypoint to begin the approach, rather than just intersecting it at the most convenient point.

I thought this was fixed in a recent patch, but obviously not.  Is there some way to load an approach that won't cause this behaviour?

This is a very well publicized problem.  The cure is to have at least one flight plan nav point left before you load and then activate the approach.  

Say you are headed to KSTP and you have the RNAV (GPS) 32 approach loaded, but not activated.   The end of your flight plan looks like this:

→ GEP →  LDASH →  FOMRU → RULDE → KSTP

LDASH is the IAF of the already loaded approach.  GEP is the last fix before that IAF.  In order to avoid the 180° turnaround, go into PROC and Activate the approach before you reach GEP.

Edited October 15, 20205 yr by fppilot

The problem is if you have no approach loaded and wait for ATC to assign you one - it's very likely you'll be past that last waypoint before ATC assigns you the approach, which means guaranteed U-turn.

Edited October 15, 20205 yr by marsman2020

Hahaha....  Wouldn't it be nice if these approaches just worked?

7 minutes ago, ryanbatcund said:

Hahaha....  Wouldn't it be nice if these approaches just worked?

Update 9....assuming they don't miss that promise and decide it was "a typo".

51 minutes ago, fppilot said:

This is a very well publicized problem.  The cure is to have at least one flight plan nav point left before you load and then activate the approach.  

This is why I insert a final waypoint very close to the arrival airport.  This gives ATC a chance for me to get my approach and transition information PRIOR to reaching that waypoint.  And if I don't get it until after, the U turn isn't terrible.

Edited October 15, 20205 yr by wthomas33065

By the way Working Title has a G1000 mod that I believe solves this issue.

https://forums.flightsimulator.com/t/release-working-title-g1000-v0-3-1-9-3-0-compatible-updated-to-v0-3-1-on-5-oct/288944

13 minutes ago, fppilot said:

By the way Working Title has a G1000 mod that I believe solves this issue.

https://forums.flightsimulator.com/t/release-working-title-g1000-v0-3-1-9-3-0-compatible-updated-to-v0-3-1-on-5-oct/288944

Interesting, I thought I had that loaded when flying and testing this yesterday. I better double check that it's actually loading up.  Although I noted it saved my G1000 settings from previous sessions which is a good clue that it is loading (I think).  Hmm... I wonder if the mod is broken too.

Edited October 15, 20205 yr by Virtual-Chris

I've been using the WT G1000 for my around the world flight.  Instant U-turns upon loading the ATC-assigned approach on both Leg 1 and Leg 2.  So it may be fixed in some instances, but not in others.

Asobos flight planning code is apparently very...."fragile" (probably being generous), so we probably just need to wait for the mod makers to dig in further and rip it all out and replace it.

Edited October 15, 20205 yr by marsman2020

48 minutes ago, marsman2020 said:

I've been using the WT G1000 for my around the world flight.  Instant U-turns upon loading the ATC-assigned approach on both Leg 1 and Leg 2.  So it may be fixed in some instances, but not in others.

For the WT G1000, make sure to select "activate", not "load".   It's in their instructions but easily overlooked (as I did at first).

Hope this helps.  

3 hours ago, tyrodes said:

For the WT G1000, make sure to select "activate", not "load".   It's in their instructions but easily overlooked (as I did at first).

I flew the Baron into KAVL this afternoon with the WT G1000 mod. Not aware of the activate, not load, I did load as soon as I selected the approach.  Was 200 nm out.  Later did activate, still before the last waypoint prior to the approach procedure and the approach was flown perfectly.  I have not yet attempted waiting to activate the approach after the final waypoint.  Will try that with practice approaches, not with one at the end of a 2 1/2 hour flight.

The approach and landing were spot on.

Edited October 15, 20205 yr by fppilot

4 hours ago, tyrodes said:

For the WT G1000, make sure to select "activate", not "load".   It's in their instructions but easily overlooked (as I did at first).

Hope this helps.  

I was not aware of that, will double check the documentation.