On Sun, 2007-04-29 at 17:33 +0000, Martin Spott wrote:
> "Csaba Hal?sz" wrote:
>
> > Two patches today:
> >
> > 1) fix source property for mach display
> > 2) added 6 structure contact points, no more falling through the
> > ground hopefully ;) (I just made up some spring coefficients)
>
> Did someone already merge these patches ?
>
> Martin.
Not yet.
I modified Csaba's spring coefficients slightly (see attachement) so the
aircraft will rest on the ground without jumping around.
Ron
? contacts.diff
Index: T38.xml
===================================================================
RCS file: /var/cvs/FlightGear-0.9/data/Aircraft/T38/T38.xml,v
retrieving revision 1.15
diff -u -r1.15 T38.xml
--- T38.xml 5 Mar 2007 18:27:44 -0000 1.15
+++ T38.xml 29 Apr 2007 18:12:23 -0000
@@ -119,6 +119,72 @@
<brake_group> RIGHT </brake_group>
<retractable>1</retractable>
</contact>
+ <contact type="STRUCTURE" name="NOSE">
+ <location unit="IN">
+ <x> -22 </x>
+ <y> 0 </y>
+ <z> -4 </z>
+ </location>
+ <static_friction> 0.80 </static_friction>
+ <dynamic_friction> 0.50 </dynamic_friction>
+ <spring_coeff unit="LBS/FT"> 5000.00 </spring_coeff>
+ <damping_coeff unit="LBS/FT/SEC"> 500.00 </damping_coeff>
+ </contact>
+ <contact type="STRUCTURE" name="LEFT_WINGTIP">
+ <location unit="IN">
+ <x> 330 </x>
+ <y> -157 </y>
+ <z> -15 </z>
+ </location>
+ <static_friction> 0.80 </static_friction>
+ <dynamic_friction> 0.50 </dynamic_friction>
+ <spring_coeff unit="LBS/FT"> 5000.00 </spring_coeff>
+ <damping_coeff unit="LBS/FT/SEC"> 500.00 </damping_coeff>
+ </contact>
+ <contact type="STRUCTURE" name="RIGHT_WINGTIP">
+ <location unit="IN">
+ <x> 330 </x>
+ <y> 157 </y>
+ <z> -15 </z>
+ </location>
+ <static_friction> 0.80 </static_friction>
+ <dynamic_friction> 0.50 </dynamic_friction>
+ <spring_coeff unit="LBS/FT"> 5000.00 </spring_coeff>
+ <damping_coeff unit="LBS/FT/SEC"> 500.00 </damping_coeff>
+ </contact>
+ <contact type="STRUCTURE" name="CANOPY">
+ <location unit="IN">
+ <x> 178 </x>
+ <y> 0 </y>
+ <z> 54 </z>
+ </location>
+ <static_friction> 0.80 </static_friction>
+ <dynamic_friction> 0.50 </dynamic_friction>
+ <spring_coeff unit="LBS/FT"> 5000.00 </spring_coeff>
+ <damping_coeff unit="LBS/FT/SEC"> 500.00 </damping_coeff>
+ </contact>
+ <contact type="STRUCTURE" name="VSTAB">
+ <location unit="IN">
+ <x> 450 </x>
+ <y> 0 </y>
+ <z> 114 </z>
+ </location>
+ <static_friction> 0.80 </static_friction>
+ <dynamic_friction> 0.50 </dynamic_friction>
+ <spring_coeff unit="LBS/FT"> 5000.00 </spring_coeff>
+ <damping_coeff unit="LBS/FT/SEC"> 500.00 </damping_coeff>
+ </contact>
+ <contact type="STRUCTURE" name="ENGINES">
+ <location unit="IN">
+ <x> 525 </x>
+ <y> 0 </y>
+ <z> 5 </z>
+ </location>
+ <static_friction> 0.80 </static_friction>
+ <dynamic_friction> 0.50 </dynamic_friction>
+ <spring_coeff unit="LBS/FT"> 5000.00 </spring_coeff>
+ <damping_coeff unit="LBS/FT/SEC"> 500.00 </damping_coeff>
+ </contact>
</ground_reactions>
<propulsion>
<engine file="J85-GE-5">
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