GPS autopilot navigating with RXP GNS 530 units

[abz]

I have 2 RXP GNS 530 units installed in the King Air.

I also have the same 2 units in another plane - the RealAir Duke.

 

When I fly in the Duke the GPS is always dead on the line on autopilot when navigating using GPS.

However, flying the same exact flight in the King Air, it is always to the left (very noticeable -at least 3 bar widths) of the GPS navigation line. The autopilot does not track dead on the line. Same for approaches.

 

Anyone seen this? Any thoughts why this would be happening?

 

Thanks, Al

[ENergy]

Hi Al, I also have the Reality XP 530 in both the Real Air Duke and the Carenado B200 and I see that same thing. It tracks dead on in the Duke but a few degrees off in the King Air, Has me baffled. -- Jim

[abz]

Hi Jim, Well then I guess it must be a problem with the Caranedo King Air.

 

I went ahead and installed the RXP FLN autopilot system in the King Air and flew the same flight.

 

It almost flew the course dead on, very slightly off but not the same as when using the King Air Autopilot system.

 

So I can only imagine that it must be a bug with the King Air autopilot system.

 

Would love to see it fixed.

 

Al

[Anxu00]

Hi Jim, Well then I guess it must be a problem with the Caranedo King Air.

 

I went ahead and installed the RXP FLN autopilot system in the King Air and flew the same flight.

 

It almost flew the course dead on, very slightly off but not the same as when using the King Air Autopilot system.

 

So I can only imagine that it must be a bug with the King Air autopilot system.

 

Would love to see it fixed.

 

Al

Hi Al,

 

How did you fit the RXP FLN Stec? Modifying the Carenado Auto Pilot sounds like a job for the master tweaker: Bert Pieke.

[abz]

Hi Bert,

 

I did not actually fit the STEC autopilot into the main cockpit panel.

Your right, need a master tweaker to do that.

 

I just edited it into the panel.cfg and brought it up as as 2D popup gauge to test it.

 

Curious, have you also observed what I noted above that the B200 autopilot does not precisely tract the GPS course?

 

Thanks, Al

[Anxu00]

Hey Al,

 

I am not Bert. I was suggesting that he may be interested in fixing the issue. I have not jumped into this one yet, still debating between this one and the up coming Flight 1 B200:

 

http://www.simforums.com/forums/beechcraft-king-air-b200_forum50&SID=714611255bc656fa9478dazzfz5ca447025463.html

 

(not to be confused with this one from Carenado, sold by Flight 1 ). Btw, I heard that this one is very similar to the C90B. If you also own that one, how does the Autopilot in that one behave with the RXP GPS?

 

Regards,

 

Vu

[abz]

Sorry Wu. Read things too quickly. Presently, I do not have the C90B.

I assume then you also have observed the "off course" GPS navigation that I noted above with the B200.

 

Al

[fppilot]

Btw, I heard that this one is very similar to the C90B. If you also own that one, how does the Autopilot in that one behave with the RXP GPS?

 

The C90B exhibits no issues with the RXP GNS430 and tracking the autopilot. I have the C90B with RXP GPS and am also considering this B200. Just have not pulled the trigger yet for a variety of reasons. Just added TrackIR 5, have spent significant time attempting to reconcile difficulties with REX E+, and see a lot of tweaks needed for the B200 and do not have the available time to address those at present. Wonder if Carenado realizes the issues with each release either delay or cost them sales?

[Bert Pieke]

I have not seen the issue - but would start by trying the "D" key workaround to reset gyro drift.

 

Don't ask me why, but FSX can be touchy that way..

 

If anyone can get me a copy of the RW Pilot's Guide for the Collins autopilot,

I'll be happy to examine the code in more detail, but at this point I am not sure

how it is supposed to function.

[abz]

Last night, took the same flight I mentioned above and the B200 autopilot/GNS 530 was almost dead on the course line.

Did not do anything differently. Plan to try some different flights today and see the results. Al

[abz]

I have not seen the issue - but would start by trying the "D" key workaround to reset gyro drift.

 

Don't ask me why, but FSX can be touchy that way..

 

If anyone can get me a copy of the RW Pilot's Guide for the Collins autopilot,

I'll be happy to examine the code in more detail, but at this point I am not sure

how it is supposed to function.

 

Thanks Bert, Just wanted to report back that the "D" key works great to get me back on a dead on track with the GPS.

 

Al