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-   -   Dynon AP improvements posted (https://vansairforce.net/community/showthread.php?t=62042)

Brantel 09-16-2010 06:37 PM

I have flown GPS approaches with it. Works like and dream. Holds the course to 0.0 cross track error most of the time. But these are way different than localizer approaches...

You need to tune the AP before you will get max performance out of it.

By the nature of how a localizer works, most AP's struggle to keep it super smooth. This is really evident close in on some AP's. The closer you get, the more sensitive the localizer gets....

Some of the older certified analog AP's will take you on a wild ride close in!!!!

Chris Hill 09-19-2010 09:01 PM

I did some more testing on the AP with ILS and just like the book says, you gotta wait until youre established on the localizer (which is what I didnt do before) and it will fly you right down the Localizer.

Brantel,

You are flying some GPS approaches? I have been trying to fly an RNAV approach, but I'm not getting the GS/vertical guidance on the dynon. I have the AP74 and HS34 with a Garmin 430W tied into a D-100 efis. If you have any info on what I'm doing wrong, I sure would appreciate it.

Brantel 09-20-2010 05:47 AM

Dynon does not support vertical steering commands yet (the AP will not couple to the vertical guidance). The AP76 is suppose to enable this function. This unit is on hold at the moment. Talk to Dynon about when or if this will be released.

Do you get the GS indicator on the HSI? Not sure if that works or not at this time....(Dynon sez the GS indicator should work if you have VNAV data available)

The GPS approaches I have flown are fake ones out of my 510...no vertical. (But I do get a VNAV/GS indicaton on the HSI)

Chris Hill 09-20-2010 09:10 PM

Yeah, when I fly the ILS, I get GS/Loc on the "hud". The AP will fly the LOC nicely, but like you said, no vertical steering for GS.

When I fly the GPS approach, I get the "Loc" but no GS on the "hud". The AP flies the "loc" fine in GPS mode as well.

I have the 430W simulator from garmins site and when I fly the RNAV approach for the local airport on it, it shows GS on the HSI. I guess I can post in Dynons support forum and see what they say

rvmills 09-21-2010 01:56 AM

Brian, gang:

Quick PIREP: Just flew a short X-C this weekend with 5.4 installed, and the pitch mode was the best behaved I've seen, right out of the "box" with no tweaking to the new parameters yet.

Pretty short flights (Reno-Bay Area and back), so not much time to play with it...but this first go-round was notibly smoother. More testing to go, and I did see one slightly early level off from a climb, so I may play with that (after re-studying the gouge). Almost don't want to mess with it...but I...just...can't...help...myself...:rolleyes: (little steps, little steps! ;))

Roll modes (NAV, TRK, HDG), and now pitch modes were all very smooth this time. Initial impressions are great for the continued progress Dynon has made with the AP! (Just as you described Brian! Kewl!! :D) Thanks D!

Cheers,
Bob

dynonsupport 09-22-2010 12:44 PM

Vertical Guidance in Dynon EFIS
 
In response to Post 23, that information is not correct.

Dynon EFIS devices do provide vertical guidance, both Glideslope from SL30 and GNS430/530, and VNAV from WAAS capable GPS (GNS430/530, CNX80/GNS480).

Currently the Dynon autopilot does not follow any vertical guidance. Using our SkyView EFIS system, however, the autopilot will follow a vertical speed bug for both climbs and descents.

Kirk Kleinholz
Dynon Technical Support.

Brantel 09-22-2010 12:51 PM

What part is not correct??? I did not say the Dynon would not show a GS indication on the HSI. I did say the AP would not couple to vertical steering commands which it won't..

You just said what I said...and a few more things about the Skyview which we were not discussing here.

We were discussing current AP coupling capability in the D?? products, not Skyview.

Please do not take post out of context...

Quote:

Originally Posted by dynonsupport (Post 469529)
In response to Post 23, that information is not correct.

Dynon EFIS devices do provide vertical guidance, both Glideslope from SL30 and GNS430/530, and VNAV from WAAS capable GPS (GNS430/530, CNX80/GNS480).

Currently the Dynon autopilot does not follow any vertical guidance. Using our SkyView EFIS system, however, the autopilot will follow a vertical speed bug for both climbs and descents.

Kirk Kleinholz
Dynon Technical Support.


Brantel 09-22-2010 01:01 PM

Chris,

I would say that you may have an approach loaded that does not have any vertical component to it. Which airport are you talking about?

Quote:

Originally Posted by Chris Hill (Post 469037)
When I fly the GPS approach, I get the "Loc" but no GS on the "hud". The AP flies the "loc" fine in GPS mode as well.


Chris Hill 09-22-2010 08:02 PM

Hey dynonsupport! thanks for dropping in

Brantel and gang

I'll post my setup here first incase I didnt post it here already.

Dynon D100+EMS120, AP74, and HS34.

These are wired via ARINC to a GNS430W.

The approach I'm trying to fly is the KMOT RNAV(GPS) 31. On the 430W, I have LPV guidance.

I understand that the AP74 will not fly the verical guidance and thats fine. The thing I would like to see (but I am not seeing) is a magenta GS on the RNAV approach. I DO have a magenta "localizer" that works very well.

Any suggestions, I'm all ears. Thanks!

RV10inOz 09-23-2010 04:40 AM

Maybe you need to turn it on.......refer the manual. Or it should be on the RHS of the HSI.


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