GTN and Autopilot

[DwaOhio]

I flew today using the GTN. I put the GTN into GPS mode and the autopilot into Nav mode. The plane wouldn’t follow the flight plan or the approach. Also the localizer on the approach with the GTN In the Nav mode wouldn’t stay on course but the GS was perfect. I don’t know what I am doing wrong or why the GTN wasn’t communicating with the autopilot. I noticed that when the I was on the approach the plane went off course and didn’t do the procedure turn and kept flying. Please Help

[Krazycolin]

This aircraft will not follow a flight plan. The AP is just not that sophisticated.

[Taguilo]

Hi,

The KAP140 comes with its own manual, please take a look. It is not capable to automatically follow a flight plan and/or complex procedures, some pilot input is always necessary.

Tomas

[Nirgal76]

My autopilot follows flightplan.
I just try a FP between PAPG and PAJN with RNAV Approach, Autopilot has followed FP and approach.
I used RXP GTN, not F1 one.

[BerndH]

Okay, I noticed that the standard GPS is not working properly, let's go, I wrote to the support and tried to describe, Answer:
Hi Bernd,
I believe the GPS is of a rather rudimentary sort.
All the best – Osh
*
I have now: Flight1 GTN 750 and GTN 650 (Euro 62,-)... built into the Otter, but with very good GPS software is not synonymous, I'm disappointed in this plane and I'm disappointed in Milviz! Without a GPS, a plane is junk, I ask it, how should one land in fog and without visibility? The DHC 3 Otter is beautifully designed, but with this plane you can only fly in good weather. Thanks, never again Milviz!
Best regards Bernd

[doodlebug]

Hi Bernd, I am disappointed that you edited out the parts of the my email where I direct you to the relevant forum topic and the programmers that can help you further.

[BerndH]

Hi Support, I have reproduced the lapidary answer from Milviz, sorry!
After hours of trying to land properly with P3Dv4 and DHC 3 Otter, nothing works, I'm almost desperate!
Yesterday, on my free Sunday, I flew all afternoon and late into the night with Milviz OTTER, I tried and tried, but nothing works.
All my other planes, like A2A (Cessna 182) work very well with ''Fight1 GPS'', also those of Carenado have no problems, only the DHC Otter of Milviz can not land, not even with simple standard GPS from Milviz!
The fact is, that this plane does not do what it should and must do, it does not fly its landing route, this plane breaks off a simple landing approach with GPS and flies a wrong way, the flight altitude does not hold this machine, she rising or falling, as she would like and is funny, a true disaster in the fog and absolutely pointless to make a landing approach in bad visibility.
I'm flying with Microsoft Flight Simulator since 2004, but sorry, I have not experienced anything like that yet.
Dear Support, I ask you, you can not sell half an aircraft, planes that can not even get a simple GPS! You should say that at least in your advertising, so that your customers are not disappointed by Milviz.
Sorry for my bad english, i can not do better.
Greetings Bernd

[Taguilo]

Sir,

With total respect, have you read the autopilot specific manual? Have you checked that GTN is using NAV1 for navigation?
If you expected the Otter to be a simple aircraft, in where you start the engines, take off, turn AP on and she flies alone up to landing, this is not the case, sorry.

Your comments are so generic that prevent us for giving proper help. Perhaps you could effort yourself a bit more and describe a complete sequence of modes that you selected on the AP to follow a flight plan.

Tomas

[BerndH]

Sir,
your answer speaks for itself, just as expected .....
they know for sure that this plane does not work reasonably well.
I speak too badly to continue here in a discourse, but one thing I'll tell you, never again Milviz.

[JonathanBleeker]

Sir,
your answer speaks for itself, just as expected .....
they know for sure that this plane does not work reasonably well.
I speak too badly to continue here in a discourse, but one thing I'll tell you, never again Milviz.

Bernd, Tomas is trying to help you. In order to help you however, he needs more information from you regarding how you have set up the aircraft (screenshots of the panel and autopilot can go a long way to helping us help you as well). Just assuming that the product is faulty and that we need to fix it isn't going to help us fix anything because we don't know the steps you have taken to get the problem. It might be working perfectly as designed and if we are forced to assume that you are following the proper procedure, we aren't going to see any problems.

[BerndH]

Dankeschön...
Okay, I have holidays from Tuesday, I'll make a video tomorrow for Youtube, from a landing approach in Frankfurt (EDDF) Runway 7L, I do with standard Milviz GPS, or with Flight1 GPS, as you wish. You'll see, I'm not just pressing AP like Tomas says.
I am not that stupid!
Bernd

[BerndH]

So, dear support, I made this video for you today to understand! I flew this route to Frankfurt EDDF, Runway 7 L and 25L several times, even with other planes without any problems, For example with an A2A Cessna 182, Milviz Beaver, Maule 7, PMDG737! But the DHC-3 is always a problem ... even with high-quality sat nav like the Flight1 GTN 750.
I would be glad if you find a solution
Greetings Bernd

https://www.youtube.com/watch?v=ox5cCCm ... e=youtu.be

[Taguilo]

Ok that is a good example.

First of all, Autopilot's 2D popup panel is currently not coupled with VC unit. DO NOT USE IT, to stay out of trouble. There is a proper 2D panel coming in the next service pack, soon I guess.

Regarding altitude deviation, I can see in your altimeter that it is 30.20". Did you check that AP baro had the same value? Otherwise AP will use its own baro setting to determine current altitude, not the aircraft's altimeter one. If those coincide then the 2D popup, even if not visible, could be interfering.

I also see wrong use of the AP lateral navigation.
At 0:0:7 you comment: Aircraft spin while adjusting the heading, even though the AP/GPS is on.
That is a correct behavior. Please check KAP140 manual page 12 :

Note: it is important to understand that in installations with a DG the Heading Bug is supplying the OBS signal to the autopilot. The CDI does not output the necessary signal strength for where the OBS card is set. Therefore, Heading Bug must correspond with desired VOR/LOC/GPS track. When following a GPS flight plan, the Heading Bug must be repositioned to the next waypoint course as soon as it is captured and the aircraft begins the turn towards the new track.


In the meantime you can try removing 2D autopilot from Milviz 530/430 variant by commenting gauge 03 in [Window01] :

Code: Select all

[Window01]
Background_color=0,0,0 
size_mm=1280,650
window_size_ratio=1.000  
position=2
visible=0
ident=GPS_PANEL
window_size= 0.710, 0.552
window_pos= 0.290, 0.480

gauge00=..\panel\DH3_XMLGauges!FBS_GNS430_2d,  640,0,640,268
gauge01=..\panel\DH3_XMLGauges!KR 87 ADF,  640,268,640,134
gauge02=..\panel\DH3_XMLGauges!FBS_GNS530_1d,  0,0,640,468
//gauge03=..\panel\DH3_XMLGauges!FBS_KAP140,  640,402,640,163
gauge04=..\panel\DH3_XMLGauges!FBS_GTX330,  0,468,640,170

Thanks!

Tomas

[BerndH]

Thank you Thomas,
I never work with D2 panel, even without D2 Otter always makes problems,
I just wanted to show them in the video that the GPS is not a decent ILS, the GPS can not do it properly without D2 panel,
it breaks out all the time his orbit and flees in a different direction!
I have tried the example very often the last days, at all airports or airfields with ILS frequency, but sometimes the DHC-3 does its job properly,
then I'm happy, but rarely does the otter make a proper apporach. If you want, I can record a complete flight from A to B for you!
Greetings Bernd

[Taguilo]

Bernd,

I´ll try to reproduce your example soon, and let you know.

Thanks

Tom