Re: [Jsbsim-devel] turbine rotation on spawning

[dave <dav...@co...>]

That depends on how JSBSim is incorporated into Outerra.  The 
initialization process is described on page 80 of the reference manual: 
http://jsbsim.sourceforge.net/JSBSimReferenceManual.pdf

Note the line:  FDMExec->DoTrim(mode);

For ground trim set mode=1


Note:  The documentation in the source code conflicts, but I believe 1 
is the correct value for ground trimming.

(FGInitialCondition.h lines 168,169 conflicts with FGFDMExec.h lines 
432-440)



Dave


On 11/14/20 2:32 AM, Simon Julie Morley via Jsbsim-devel wrote:
> how do I specify ground trim ?
>
> On Sat, 14 Nov 2020 at 00:51, David Culp <dp...@gm... 
> <mailto:dp...@gm...>> wrote:
>
>     Make sure you use ground trim rather than in-air trim.  I'm
>     assuming you start off on the ground.
>
>     Dave
>
>     On Fri, Nov 13, 2020, 2:38 PM Simon Julie Morley via Jsbsim-devel
>     <jsb...@li...
>     <mailto:jsb...@li...>> wrote:
>
>         When spawning in Outerra the turbine is rotating.
>
>         We can initialise with the fuel cutoff to 1 but this seems to
>         be after the fact that the engine was running,so it's on the
>         slow down, from 6000 rpms that's quite a long slow down
>
>         Is there a way to spawn without the engine having ever started ?
>
>         regards
>
>         Simon
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