Re: [Jsbsim-devel] turbine rotation on spawning

[Simon J. M. <sim...@go...>]

Surely mode can only be determined based on whether the vehicle is on the
ground or not ?


On Sat, 14 Nov 2020, 21:01 GNU, <uri...@gm...> wrote:

> This ground trim initialization does not consistently work in Outerra
> unfortunately. This is no fault of either OT or JSB, but it has not been
> properly implemented in the engine.
>
> On Sat, Nov 14, 2020 at 1:24 PM dave <dav...@co...> wrote:
>
>> 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...> 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...> 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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>>>
>>
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