FSX - 737 - PM - Waypoints

[Ray Proudfoot]

Just to be sure, did you have Gyro Drift enabled or disabled in Aircraft Realism? I know it shouldn't have an effect, but I'd like to see it proven.

Pete

I remember your discussion on this and I checked. The two GYRO settings in FSX.CFG are: -

GyroEffect=0.41
GyroDrift-False

Is the GyroEffect value ignored if Drift=False?

[JonathanRichardson]

Hi

Hmm - I see it. Did you enter each waypoint manually? And what is the navdata cycle?

Regards
Jonathan Richardson
Project Magenta

[JonathanRichardson]

Hi Ray

Just my two pence worth, don't know the answer to the question for Pete - but if you can switch it off completely do it - you don't get gyro drift on a 737, even the mechanical standby HSI won't drift.

Regards
Jonathan Richardson
Project Magenta

[Ray Proudfoot]

Hi

Hmm - I see it. Did you enter each waypoint manually? And what is the navdata cycle?

Regards
Jonathan Richardson
Project Magenta

Hi Jonathan,

I've shut things down for the night. I'll reply in full tomorrow around 1700GMT.

The waypoints were loaded from a saved plan in the CDU. I think the NavData cycle is 2 behind the current release. Either 0810 or 0811.

More tomorrow.

[Ray Proudfoot]

Hi Ray

Just my two pence worth, don't know the answer to the question for Pete - but if you can switch it off completely do it - you don't get gyro drift on a 737, even the mechanical standby HSI won't drift.

Regards
Jonathan Richardson
Project Magenta

Okay, wilco. Thanks. Better still, give me your FSX entries and I'll use those.

[JonathanRichardson]

>he waypoints were loaded from a saved plan in the CDU.

Hi Ray

If possible could you send it to me via e-mail at some stage so I can load it? Or / and when you have time please try a manual entry of the route - that would be ideal.

>I think the NavData cycle is 2 behind the current release. Either 0810 or 0811.

Should be fine. I have most recent and also some tests with the July 08 data and they all appear the same re result.

Regards
Jonathan Richardson
Project Magenta



More tomorrow.[/QUOTE]

[abril]

Ray, you have the same problem that I.
You have reproduced EXACTLY what it happens to me. I observe in addition that the configuration of the ND is TRK MAG (the same that I use). Jonathan has always talked about configuration HDG MAG could this have some incidence in the reproduction of the error?
I introduce the Wpts of form manual, but using VIA… TO (ex. VIBAS, UM985 SOPET…), and the CDU appears the Wpts included between VIBAS and SOPET (BAZAS, YES, ASTRO, VLC). It could influence this in the appearance of the error?
Greetings.

Israel Abril Fernández

[Ray Proudfoot]

Ray, you have the same problem that I.
You have reproduced EXACTLY what it happens to me. I observe in addition that the configuration of the ND is TRK MAG (the same that I use). Jonathan has always talked about configuration HDG MAG could this have some incidence in the reproduction of the error?
I introduce the Wpts of form manual, but using VIA… TO (ex. VIBAS, UM985 SOPET…), and the CDU appears the Wpts included between VIBAS and SOPET (BAZAS, YES, ASTRO, VLC). It could influence this in the appearance of the error?
Greetings.

Israel Abril Fernández

Abril,

Jonathan has already discounted the possibility of the heading type being responsible. In any case I use the same builds for FSX and FS9 so if it was wrong for FSX it should also be wrong for FS9 and it isn't.

How the plan is entered into the CDU could be a factor. I will enter the waypoints / airways manually when I next test this and see if that has any bearing.

I will also send (or upload here) my stored plan from last night's test.

I think it would be helpful to Jonathan to concentrate on one plan at this stage rather than lots of different ones. When you're trying to find a problem the fewer variables you have the better. The EGCC-EIDW is a very simple straight-line route that quickly shows if there's a problem or not.

The extra waypoints created when you enter a jet route are quite normal and I wouldn't expect that to cause the problem. You could always just enter them without a jet route and see if it makes any difference.

The important thing when trying to identify a problem is to change one, and only one, thing at a time.

[JonathanRichardson]

> Jonathan has always talked about configuration HDG MAG could this have some incidence in the reproduction of the error?

Hi

Just to confirm, I understand your point, but I have tested in both HDG TRU and HDG MAG - I just did not post every single combination of tests. I think the problem is elsewhere. The only time I can create a off-track condition is for a very short time after making a very steep (let us say 90degree turn at a waypoint at 305kts) there is a short time where the ND and CDU are updating (about 30seconds) and then the direct track is re-drawn to the next waypoint from the a/c. This is pretty normal for such a sharp / fast turn, and I think acceptable.

Interested to hear any reports re a direct entra point by point route - this I think is the main difference in procedures.

Regards
Jonathan Richardson
Project Magenta

[Ray Proudfoot]

Hi Jonathan,

I am trying to create a new route for EGCC-EIDW in the CDU but after adding the SID - WAL1R and pressing LSK5L to select the waypoints from the jet route the CDU fails with Run-time error 55. Screenshot attached.

Any idea what is causing this? I remember getting it with other routes in the past and reluctantly have resorted to building plans using other software and then loading them into the CDU. It is very frustrating when this happens.

Here is the plan I used for last night's test. See if you can replicate my problem.