FSXA Mixture contol 10% to 100% only

[TiAr]

Now I am back at home again. I changed my last post... thanks Bill.

Rob, your code is just working - I did no changes on it. As you wrote 0 will switch mixture to 100 Percent. But I need 0 = mixture around 10 % or better less than 10 % (over the engine shut down point) and 1 = 100 % mixture.

Again - the Soloy Mark 1 has no separate mixture or condition control lever.

What I did. My control gauge:

<Gauge Name="ground_flight_idle" Version="1.0">
<Element>
  <Select>
  <Value>
  (A:GENERAL ENG COMBUSTION:1,bool)
  (A:GENERAL ENG MIXTURE LEVER POSITION:1,percent) 0.1 &gt; &amp;&amp;
  if{
  100 (L:GroundIdle,number) 90 * - s10 (A:GENERAL ENG MIXTURE LEVER POSITION:1,percent) - abs 0.1 &gt;
  if{ l10 163.84 * (>K:MIXTURE1_SET) }
  }
  </Value>
  </Select>
</Element>
</Gauge>

My modeldev to control Ground/Flight Idle switch

  <PartInfo>
  <Name>switch_throttleset_gf</Name>
    <AnimLength>100</AnimLength>
      <Animation>
         <Parameter>
         <Code>
            (L:GroundIdle, bool) 100 *
         </Code>
         <Lag>400</Lag>
         </Parameter>
    </Animation>
  <MouseRect>
  <Cursor>Hand</Cursor>
  <HelpID>HELPID_GAUGE_SWITCH_GROUND_FLIGHT_SET</HelpID>
  <ToolTipText>GROUND FLIGHT SET</ToolTipText>
  <CallbackCode>(L:GroundIdle, bool) ! (>L:GroundIdle, bool)</CallbackCode>
  </MouseRect>
  </PartInfo>

Perhaps there is a solution.

Thomas

 

[rcbarend]

Rob, your code is just working - I did no changes on it. As you wrote 0 will switch mixture to 100 Percent. But I need 0 = mixture around 10 % or better less than 10 % (over the engine shut down point) and 1 = 100 % mixture

Not sure what you mean exactly, but if you just want the Lvar inversed:, replace

100 (L:GroundIdle,number) 90 * - 
by
10 (L:GroundIdle,number) 90 * +

Rob

 

[TiAr]

Thank you all with your very useful tipps. Rob, at least this was the solution. The main problem to cover a turboprop engine without having a condition leveler is now solved. This is really special to the real Soloy Mark 1. There you only have a simple contoller switch for only Ground and Flight Idle. As I know it controls only the fuel injection rate.

The Mark 1 comes with floats too, and I had the problem that aircrafts are not stopping after landing on water because idle was too high. To go with mixture control was the best way to solve it.

Thomas

 

[TiAr]

My working to cover Soloy´s Rolls-Royce engine for both FSX and P3DV4 comes soon to an end. All is working extremely real like the real bird including all the non-linear stuff with airfiles and engine displays.

Now Auto-Start is working very well, but manually starting the engine is really weird.

After pushing starter switch, engine first is running normal with ignition, but than it spools very quickly to an extreme high value (like full throttle). And the aircraft is running some hundred feet over the field with brakes are on. With Auto-Start all is fine. I am using the default switch_starter in modeldef.

I have no idea to solve it. Any suggestions are welcome.

Thomas

 

[rcbarend]

Not sure what the default switch starter does, but try this (for each engine):

When you push the starter switch, it should generate one ToggleStarter event to set the starter on.
When the Combustion Avar becomes true, give another ToggleStarter event to set the starter off, and set mixture to 10%.

Rob

 

[taguilo]

After pushing starter switch, engine first is running normal with ignition, but than it spools very quickly to an extreme high value (like full throttle). And the aircraft is running some hundred feet over the field with brakes are on. With Auto-Start all is fine. I am using the default switch_starter in modeldef.

What you describe does not seem to be strictly related to Mixture values. If it spools to 100 % N1 and is running over with brakes that sounds more like a power (throttle) issue.

Tom

 

[Kekelekou]

I have experienced such a start-up runout with many a turboprop in FSX. Don't know what causes that though...

 

[Heretic]

Lionheart's Kodiak also suffers from a runaway engine, but setting the mixture to just above engine cutout during startup usually works around this. I think fuel_flow_gain in the aircraft.cfg may also have something to do with this.

 

[Roy Holmes]

If the engine with the throttle shut, goes to what looks like full throttle, it is probably because the box for "reverse" was checked.
At least that is a very simple cause.
Roy

 

[chris]

If it's anything like the King Air, I need to wait until N1 is 20% before opening the fuel, otherwise I get the same problem.