FS2004 To set the Autopilot to climb...

[BaiterOne]

Hi,

I am messing around with an autopilot of my own (for fun!) in the Bendix King KAP 140 style (using XML).

I want to get the AP to climb or descend the aircraft at a desired rate of FPM.

I have used "0 (>K:AP_VS_VAR_INC)" and "0 (>K:AP_VS_VAR_DEC)" to set the desired rate.

What is the command to tell it to climb/descend? I don't want to give it an altitude to reach, just climb until I tell it to stop!

What is the command then to tell it to stop at the altitude which the aircraft has reached now?

I have tried "0 (>K:AP_PANEL_ALTITUDE_HOLD)" (and_ON and _OFF) until I was blue in the face, and none appeared to achieve my purpose.

I think I have gotten FS2004, my Autopilot, and myself confused! (and it doesn't take much!)

Can anyone un-confuse me? Please?

Walter

 

[rcbarend]

As far as I know, FS9 has no V/S hold function like you want.

Here's what I used to switch the "current V/S Hold" on/off.

<Mouse>
   <Cursor Type="Hand"/>
   <Tooltip>Toggle Current V/S Hold</Tooltip>
   <Click Repeat="No">
     (L:F28_VH_State,bool)
     if{
       0 (&gt;L:F28_VH_State,bool)
       (&gt;K:AP_ALT_HOLD_OFF)
     }
     els{
       1 (&gt;L:F28_VH_State,bool)
       (A:VERTICAL SPEED,feet/minute) d 0 &gt;
       if{ 100 / int 100 * 100 max (&gt;K:AP_VS_VAR_SET_ENGLISH,feet/minute) 90000 }
       els{ 100 / int 100 * -100 min (&gt;K:AP_VS_VAR_SET_ENGLISH,feet/minute) 0 }
      (&gt;K:AP_ALT_VAR_SET_ENGLISH)
      (&gt;K:AP_ALT_HOLD_ON)
    }
  </Click>
</Mouse>

So: sets the AP AltHold ON, with target Altitude set to an extreme value ( 0 or 90000 ft) and set the required V/S to the actual value of V/S when you click it ON.

If you want to set the V/S to a predefined value instead of the actual V/S, just replace (A:VERTICAL SPEED,feet/minute) by an Lvar set another way .

Anyway, it gives you the right events to use....

Rob

 

[BaiterOne]

Very nice Rob, the idea works perfectly....

Thanks

Walter