On 1.4.3
Avionics bus does not turn on TDS GTN750 nor the transponder and lights do not work. I'm completely unable to even switch the nav and strobe lights on.
When starting the plane from the runway, the avionics are all turned on fine but as soon as I hit "Ready to Fly" they shut themselves off and will not turn back on.

6 hours ago, happydappyman said:

Hey Sender, I've got the files from the discord and it seems to be working for me with the PMS50 GTN750. But it didn't solve the problem where the plane sometimes descends a little too quick and loses the slope. If you haven't grabbed the files from discord, grab em and let me know if it's fixed for you.

I downloaded the systems.cfg and flight_model.cfg from Discord and tried the ILS 08 ACZES transition.  For the very first time when I switched from GPS to VLOC the aircraft didn't start descending.  It intercepted the localizer as expected and I was able to configure without losing any altitude.  On intercepting the GS I configured full flaps and set the power and the aircraft (PMS50 version) maintained localizer and glide slope all the way down for the very first time without any intervention on my behalf.

Update.  I did a flight this time with the GNS version of the aircraft and while it didn't descend when I switched from GPS to VLOC on the GNT 530 the aircraft did not intercept the glidepath.  The ALT selector remained illuminated.  After turning off the ALT selector and manually correcting down to glidepath the aircraft did not follow the glidepath and I had to intervene.  This is with the two files listed above installed.  

Edited April 11, 20224 yr by jfwharton

6 hours ago, Sender46 said:

This is what works for me the PMS50 GTNs (with Beta 1.4.3_Hotfix).

TO CLIMB:

In level flight, set required altitude on the Alt Alert,

Arm the Alt Alert (yellow light comes on),

Select VS and set required FPM,

Plane climbs and captures (green CPLD light comes on).

To DESCEND:

Select ALT to uncouple the Alt Alert (green CPLD light goes off) otherwise you won't be able to arm it,

Arm the Alt Alert (yellow light comes on),

Select VS and set required FPM,

Plane descends and captures (green CPLD light comes on).

IN LEVEL FLIGHT:

Once captured and level, selecting 0 VS, LVL or ALT all keep me in level flight.

I use the TDS Sim GTNs. I use and have used for quite some time these same procedures with one small exception. For descent I first set the desired altitude just as I do for climb. That is the only difference and I suspect Sender46 does too and his is just an error of omission. 

Thanks Sender46 for putting together this simple procedure set. I would suggest anyone having VNAV issues read and try these. I think you will find they solve your issues completely

-B

Edited April 11, 20224 yr by btacon

1 hour ago, jfwharton said:

On intercepting the GS I configured full flaps and set the power and the aircraft (PMS50 version) maintained localizer and glide slope all the way down for the very first time without any intervention on my behalf.

Just as a point of interest, last night I asked Joe, the owner of the C414, how he flies an ILS. He said he usually flies it at 130 Kts with one notch of flaps until he breaks out, at which point he will throttle back and add more flaps for landing. His reasoning is he does not want to reach minimums "low and dirty" (at low speed and full flaps) if he has to initiate a missed approach. For those who may not be aware, Joe is an ATP rated pilot (and flight simmer) who flies Learjet and Gulfstream biz jets around the world for a living.

Al

Edited April 11, 20224 yr by ark

48 minutes ago, ark said:

Just as a point of interest, last night I asked Joe, the owner of the C414, how he flies an ILS. He said he usually flies it at 130 Kts with one notch of flaps until he breaks out, at which point he will throttle back and add more flaps for landing. His reasoning is he does not want to reach minimums "low and dirty" (at low speed and full flaps) if he has to initiate a missed approach. For those who may not be aware, Joe is an ATP rated pilot (and flight simmer) who flies Learjet and Gulfstream biz jets around the world for a living.

Al

That makes sense but should that be reflected somewhere in the checklists?  The before landing states to set flaps 45 and approach doesn't state anything about flaps or gear.  When I flew Lear 35's and C-130's the procedure was to set flaps 20 for the lear on approach before the FAF (flap selections 8, 20, DN) and flaps 50 percent on approach before the FAF for the C-130.  Then flaps as required or Full down when landing is assured.  But then again, there were two pilots on board so there was someone not flying doing the configuring. Is there anywhere I could download chart, table showing the approach speeds for different flap configurations?

Edited April 11, 20224 yr by jfwharton

36 minutes ago, jfwharton said:

That makes sense but should that be reflected somewhere in the checklists? 

I assume that's just Joe's preferred technique.  My understanding is the checklists came mainly from the POH.

Al

13 hours ago, Sarcasmx1 said:

Same issue here with the TDS in 1.4.3. The autopilot can't seem to hold an altitude. 

Strange been having no issues such as this with altitude or ILS that others state. I did notice the the TDS has an update to 1.0.1.3 now. Sadly no info on the TDS forums about what it does.

2 hours ago, jfwharton said:

Is there anywhere I could download chart, table showing the approach speeds for different flap configurations?

Not that I know of, maybe someone else can help with this.

Al

14 hours ago, Sender46 said:

This is what works for me the PMS50 GTNs (with Beta 1.4.3_Hotfix).

TO CLIMB:

In level flight, set required altitude on the Alt Alert,

Arm the Alt Alert (yellow light comes on),

Select VS and set required FPM,

Plane climbs and captures (green CPLD light comes on).

To DESCEND:

Select ALT to uncouple the Alt Alert (green CPLD light goes off) otherwise you won't be able to arm it,

Set required altitude on the Alt Alert (THIS LINE PREVIOUSLY OMITTED IN ERROR)

Arm the Alt Alert (yellow light comes on),

Select VS and set required FPM,

Plane descends and captures (green CPLD light comes on).

IN LEVEL FLIGHT:

Once captured and level, selecting 0 VS, LVL or ALT all keep me in level flight.

Now corrected (see above) to include omitted step.  Thanks btacon for your correction.

Edited April 11, 20224 yr by Sender46

5 hours ago, jfwharton said:

......  Is there anywhere I could download chart, table showing the approach speeds for different flap configurations?

Not what you are asking for but this stall speeds chart helps to stay safe (from the POH).

https://www.dropbox.com/s/o2z8p60smuifmpi/STALL SPEEDS.png?dl=0

Link for the POH: https://redcliffeaeroclub.com.au/index.php/download/c414a-poh-pdf/

Edited April 11, 20224 yr by Sender46

13 hours ago, happydappyman said:

Hey Sender, I've got the files from the discord and it seems to be working for me with the PMS50 GTN750. But it didn't solve the problem where the plane sometimes descends a little too quick and loses the slope. If you haven't grabbed the files from discord, grab em and let me know if it's fixed for you.

Thanks, happydappyman.  Got the systems.cfg and flight_model.cfg files and flew the ILS into EGJB Guernsey and APR worked perfectly all the way down to the runway.  Then flew the ILS into EGHI Southampton and it dropped below the glide slope.  I switched off APR and corrected to got back on glide slope then switched APR back on but it dropped below glideslope again.  So yes, I'm still seeing an issue there too.

Edited April 11, 20224 yr by Sender46

10 hours ago, abartos said:

On 1.4.3
Avionics bus does not turn on TDS GTN750 nor the transponder and lights do not work. I'm completely unable to even switch the nav and strobe lights on.
When starting the plane from the runway, the avionics are all turned on fine but as soon as I hit "Ready to Fly" they shut themselves off and will not turn back on.

Maybe the battery is flat?  Have you tried connecting the GPU on the EFD?

12 hours ago, jfwharton said:

I downloaded the systems.cfg and flight_model.cfg from Discord and tried the ILS 08 ACZES transition.  For the very first time when I switched from GPS to VLOC the aircraft didn't start descending.  It intercepted the localizer as expected and I was able to configure without losing any altitude.  On intercepting the GS I configured full flaps and set the power and the aircraft (PMS50 version) maintained localizer and glide slope all the way down for the very first time without any intervention on my behalf.

Update.  I did a flight this time with the GNS version of the aircraft and while it didn't descend when I switched from GPS to VLOC on the GNT 530 the aircraft did not intercept the glidepath.  The ALT selector remained illuminated.  After turning off the ALT selector and manually correcting down to glidepath the aircraft did not follow the glidepath and I had to intervene.  This is with the two files listed above installed.  

There is another issue with the autopilot in the GNS model using those files.  When the altitude is captured there is both an amber light and a green light on the ALT ALERT.  There should only be a green light.  Also, I tried flying a different ILS this morning with the GNS version and it wouldn't fly the approach.  So I restored the original files and will try flying that ILS again at KCOS.

Edited April 11, 20224 yr by jfwharton

Turning off the altitude alerter armed light has been fixed for the next update.

Al

I'm struggling to understand the operation of the pressurization controls from the description in the POH and I'm not at all sure I'm doing it correctly.  

I'm eventually cruising at 20,000', with the cabin altitude reading 6,300'.  Pulling the RAM DUMP valve manually dumps the cabin pressure, as it should.  However, as I understand it from the POH, the DEPRESSURIZE position on the pressurization switch should operate the RAM DUMP valve to dump the cabin pressure.  But if I switch to DEPRESSURIZE, the cabin altitude stays at 6,300' on the gauge.

Regarding the CABIN RATE CONTROL knob, I can see that changes the reading on the cabin rate-of-climb indicator gauge (but only sometimes).  Other times it only changes the reading one way or not at all but I may well be doing something wrong.  I don't understand how or when that control should be used and I can't find can't find anything in the POH to explain that.

I haven't got my head around operating the pressurization controls properly.  If anybody has a simple procedure to follow, that would be much appreciated.