4 hours ago, MartinRex007 said:

My Yaw Damper seems to be connected with the AP switch, that is probably why you can't map it to a key? With the AP on I can't turn yaw off without turning the AP off, maybe that is how it works in the RW?

 

Cheers

Martin

The RW KFC-300 AP/YD switch is designed such that turning on the AP switch automatically turns on the YD switch.  There is a little tab on the top side of the YD switch that protrudes over the top of the AP switch.  Push up on the AP switch and it physically pushes up the YD switch.  The condition that can't physically happen in the RW is the AP to be on and the YD to be off.  Turning the YD off also turns the AP off.  The following are the RW possibilities.

AP off - YD off, AP on - YD on,  AP off - YD on. 

The error in the simulation is that it allows AP on -YD off. 

 

Edit:  Post seems redundant now that I saw Bert's fix.  Sorry........

My fix only addresses the AP off - YD on situation.

Depending on how fancy or simple you want to make it, you can program the combinations to your liking.

What I wanted to happen, is for the YD to turn off, if I turn off the AP using a yoke button.

OK,  that's what I want as well.  Your fix didn't work for me but that's not your fault.  I have an older serial PFC yoke that had the autopilot disconnect button hard-coded (it's the only button on the rig I can't change with FSUIPC).  I am going to look at the P3D SDK in an effort to figure out what key parameter it is actually sending.  It seems to work fine for pretty much all other airplanes but it won't deselect the YD in the Cheyenne as it should. 

1 hour ago, whamil77 said:

OK,  that's what I want as well.  Your fix didn't work for me but that's not your fault.  I have an older serial PFC yoke that had the autopilot disconnect button hard-coded (it's the only button on the rig I can't change with FSUIPC).  I am going to look at the P3D SDK in an effort to figure out what key parameter it is actually sending.  It seems to work fine for pretty much all other airplanes but it won't deselect the YD in the Cheyenne as it should. 

Does it turn off the AP in the Cheyenne?

Try the Z key on the keyboard as a test..

If so, my fix should work.. you may have to retrace your steps..  You can check in the external view if anti-skid is working..

If the wheels seize up during braking, the anti skid is not active.

Yes, it turns off the autopilot just like the Z Key does.  It just doesn't turn off the yaw damper just like my Z key doesn't turn off the yaw damper.  I know it sounds strange, but this particular button on my yoke is very different from anything else I have seen.  It is driven through FSUIPC by FPC (a companion program also written by Mr. Dowson for this very thing, that is, making the Precision Flight Controls serial interface work with FSX/P3D).  PFC somehow hard-coded this button and it can't be changed even through the PFC interface.  It has always worked fine in all my other planes.  Something about the coding in the Cheyenne makes it different.

I am a little suspect that its the dummy switch showing still on and not actually the yaw damper.  I am going to use a "varwatcher" to verify.   

I'm going to keep at it.  I'll report back if I come up with something that works for the yaw damper.  Your anti-skid works just fine. 

2 hours ago, whamil77 said:

Yes, it turns off the autopilot just like the Z Key does.  It just doesn't turn off the yaw damper just like my Z key doesn't turn off the yaw damper.  I know it sounds strange, but this particular button on my yoke is very different from anything else I have seen.  It is driven through FSUIPC by FPC (a companion program also written by Mr. Dowson for this very thing, that is, making the Precision Flight Controls serial interface work with FSX/P3D).  PFC somehow hard-coded this button and it can't be changed even through the PFC interface.  It has always worked fine in all my other planes.  Something about the coding in the Cheyenne makes it different.

I am a little suspect that its the dummy switch showing still on and not actually the yaw damper.  I am going to use a "varwatcher" to verify.   

I'm going to keep at it.  I'll report back if I come up with something that works for the yaw damper.  Your anti-skid works just fine. 

I'm afraid I mixed up two airplanes.. try this:

<Gauge Name="AntiSkid" Version="1.0">
   
<Element>    <Select>    <Value>

<!-- Activate Anti-skid -->
   
  (A:ANTISKID BRAKES ACTIVE,bool) !  if{ (>K:ANTISKID_BRAKES_TOGGLE) }   

<!-- Toggle Yaw Damper -->   

(A:AUTOPILOT MASTER,bool) !  (L:YAW_DAMPER_TOGGLE_DUMMY, bool) and if{
  0 (>L:YAW_DAMPER_TOGGLE_DUMMY, bool) }

      
</Value>   </Select>   </Element>
</Gauge>

 

BINGO!  Works like a charm.  Thank you very much. 

Thanks Bert, as always you have a solution, I will try it !

Continuing on Cheyenne info, I found this :

https://www.pilotundflugzeug.de/store/max

On that page you will find (left, first link ) : "operational documents, manual, checklists", there you will find, among other useful docs, an online perf calculator and an complete POH, unfortunately it's for a PA31T2 (Cheyenne II XL) , but it's close enough on most systems. Main differences as far as I understand :

• Max Prop RPM is 1900rpm instead of 2200
• Condition levers have a low idle/high idle position instead of just cutoff/max
• Of course weights are different

Elsewhere on the site you will find interesting info on the PT6, as well as complete articles on the Cheyenne, unfortunately for me it's all in German...

Best regards...

Hi Folks,

Good stuff...

One other resource I highly recommend is Fltplan.com - they have an advanced fuel burn profile for the Cheyenne II (I and IIXL as well) built into their site - so if you want some ballpark time/distance/fuel estimates on your flight plan - it's a good place to get it... For those unaware - it also has the best moving map EFB tablet app for Flightsim as well - all totally free and includes free georeferenced approach plates (only free source on the planet I'm aware of)...  I used to take the data from there and create FSBuild profiles but as of a couple months ago I finally retired my FSBuild and moved to Alex's Little Navmap which doesn't do any advanced fuel burns yet...

 

https://fltplan.com/

 

Regards,
Scott

Hi all,

Ftplan works for US/Canada, but for Europe  I recommend https://www.autorouter.aero, if you create an account you can, for free, get a routing done compliant with Eurocontrol, calculate fuel etc if your aircraft profile is right, export the flight plan to all kinds of formats (including FSX!) and get all the official IFR plates from pretty much all of europe/north africa and some countries like ukraine/azerbaijan/kazakhstan...

Sorry to be a pain but I do not understand Bert's proposed solution. Does it actually enable assigning a key to the Yaw Damper, or is it simply a fix to the fact that the YD does not come off when the AP is switched off ? If it's the latter, any ideas how to achieve the key assignment ?

Cheers!

4 hours ago, sinonquoi said:

Hi all,

Ftplan works for US/Canada, but for Europe  I recommend https://www.autorouter.aero, if you create an account you can, for free, get a routing done compliant with Eurocontrol, calculate fuel etc if your aircraft profile is right, export the flight plan to all kinds of formats (including FSX!) and get all the official IFR plates from pretty much all of europe/north africa and some countries like ukraine/azerbaijan/kazakhstan...

Sorry to be a pain but I do not understand Bert's proposed solution. Does it actually enable assigning a key to the Yaw Damper, or is it simply a fix to the fact that the YD does not come off when the AP is switched off ? If it's the latter, any ideas how to achieve the key assignment ?

Cheers!

It is the latter.

Carenado does not actually turn on the flightsim YD function, but just activates a dummy variable that results in the visuals that you see in the cockpit.

5 hours ago, sinonquoi said:

Sorry to be a pain but I do not understand Bert's proposed solution. Does it actually enable assigning a key to the Yaw Damper, or is it simply a fix to the fact that the YD does not come off when the AP is switched off ? If it's the latter, any ideas how to achieve the key assignment ?

As I noted in my previous post did you see J35OE comments from a previous thread :-

quote "   The yaw damper key doesn't work because it's disabled in the cfg file (apparently built into the FDE)

You can enable it by changing the 0 to 0.1 in the cfg file.

[autopilot]
yaw_damper_gain=            0.1   "

bob

 

1 hour ago, onebob said:

As I noted in my previous post did you see J35OE comments from a previous thread :-

quote "   The yaw damper key doesn't work because it's disabled in the cfg file (apparently built into the FDE)

You can enable it by changing the 0 to 0.1 in the cfg file.

[autopilot]
yaw_damper_gain=            0.1   "

bob

 

That may be so, but the coding in this airplane does not actually turn on the yaw damper, but "fakes it"..

You can turn on YD by using the FS command - but the AP key in the cockpit only turns on a dummy YD variable.

10 hours ago, Bert Pieke said:

That may be so, but the coding in this airplane does not actually turn on the yaw damper, but "fakes it"..

You can turn on YD by using the FS command - but the AP key in the cockpit only turns on a dummy YD variable.

Thanks for confirming that Bert, I didn't  know what to expect from switching it on in the Aircraft file but to me it appears to have to much control with the FD and the YD, on the couple of flights so far it fly's straight and level, is this right. I prefer to just use your mod without the alteration to the Aircraft file.

bob

Hi all,

The aircraft.cfg modification (changing "yaw_damper_gain" to "0.1") does not work on my system, i.e using Ctrl+D or any other assignment does not move the Yaw Damper switch nor lights up the YD sign in the plane. I did raise a ticket to Carenado who basically responded "moron, use you mouse, just click the bloody button, and move on..."

So I guess that's what I'll do unless somebody with the same need and enough FSX knowledge comes up with a trick...

I like this plane but I really hate fiddling around looking down to click some out of the way switch right after take off or on short final. Too bad !