Edit: for FS2020...

I've had PMDG's 737-600 for a couple of years and love the aircraft. However, it has a problem working out what to do with approaches based on an NDB: eg the Humberside KIM 1 onto R20. It miscalculates the outward leg and puts it somewhere 180° in the opposite direction.

It's meant to:

but does

Removing the Navigraph Hub link just results in out of date nav data...

Of course, it's easy to manually construct the same approach in the FMS, but that not the point. Every other aircraft I use works out NDB ILS DME approaches correctly. It's not just Humberside. As another example, the PMDG 737-600 gets approaches into Liverpool wrong too.

The plane is 100% fine with eg basic ILS approaches; it's the outbound leg from the NDB it gets wrong.

Is this a known fault or is it me?

FWIW, the Avsim PMDG forums seems a bit moribund, hence my posing here.

Edited August 28Aug 28 by The_Flying_Potato

I had a quick look and it looked ok : Navdata cycle 2608

EGLL ENCOD VEGUS and the NDB Appr.

Edited August 28Aug 28 by vonmar

Imgur not available in my region (Scunthorpe!): fire up the VPN! :-) VPNs have proper uses!

I'll try EGLL ENCOD VEGUS and the NDB Appr. and report back.

What specific approach are you flying? The KIM1?

Any idea why mine doesn't work?

18 minutes ago, The_Flying_Potato said:

What specific approach are you flying? The KIM1?

Yes.

NDB DME RWY 20 (EGNJ)

Edit: I could do a short video if needed.

Edited August 28Aug 28 by vonmar

FS2020 update... and... eventually...

EGLL DCT ENCOD DCT VEGUS DCT EGNJ/KIM1.I20 is the route.

First, here is what FlyByWire's A320N shows:

Now, PMDG's version:

It's KIM-9 that's in the wrong place.

19 minutes ago, vonmar said:

Edit: I could do a short video if needed.

Nah, I trust you :-)

47 minutes ago, The_Flying_Potato said:

It's KIM-9 that's in the wrong place.

Ok on my testing.

Kim8 Kim9 are approach transitions and appear correctly (just like the approach plates and your FBW A320) using current Navigraph navdata PMDG737-600 (MSFS2024).

I have not tested PMDG MSFS2020 (yet).

I've just stripped pretty much everything out of the community folder, apart from the aircraft itself, using the Addon Linker - got it back, now! - and doing so made no difference.

Edited August 28Aug 28 by The_Flying_Potato

1 hour ago, vonmar said:

Yes.

NDB DME RWY 20 (EGNJ)

Edit: I could do a short video if needed.

If you have the video done, please send me the link.

29 minutes ago, The_Flying_Potato said:

I've just stripped pretty much everything out of the community folder, apart from the aircraft itself, using the Addon Linker - got it back, now! - and doing so made no difference.

I do not use Addon-Linker.

Do you have any other PMDG aircraft that could be tested?

Nope, no other PMDG aircraft. As I said above, the FlyByWire A320N works fine - and so does every other aircraft. Addon-Linker just creates or doesn't items in the community folder.

FWIW, I bought a new PC about eight or nine months ago, and I was experiencing the same behaviour on the old one.

Edited August 28Aug 28 by The_Flying_Potato

10 minutes ago, The_Flying_Potato said:

FWIW, I bought a new PC about eight or nine months ago, and I was experiencing the same behaviour on the old one.

PMDG737-600 MSFS2020 has the same problem you reported.

I tested PMDG737-600 MSFS2024 and P3D5.4.9 and they are OK.

1 minute ago, vonmar said:

PMDG737-600 MSFS2020 has the same problem you reported.

That's what I'm using!