diff --git a/Aircraft-yasim/p51d.xml b/Aircraft-yasim/p51d.xml
index eacd12d38..bd55c7f96 100644
--- a/Aircraft-yasim/p51d.xml
+++ b/Aircraft-yasim/p51d.xml
@@ -32,8 +32,8 @@ The reference datum for measurements is the nose.
 <airplane mass="7390">
 
 <!-- Approach configuration -->
-<approach speed="150" aoa="6.6">
-  <control-setting axis="/controls/engines/engine[0]/throttle" value="0.5"/>
+<approach speed="87" aoa="13">
+  <control-setting axis="/controls/engines/engine[0]/throttle" value="0.2"/>
   <control-setting axis="/controls/engines/engine[0]/mixture" value="1.0"/>
   <control-setting axis="/controls/engines/engine[0]/propeller-pitch" value="0.5"/>
   <control-setting axis="/controls/flight/flaps" value="1.0"/>
@@ -61,8 +61,8 @@ The reference datum for measurements is the nose.
 stall aoa not available
 flap drag not available
 -->
-<wing x="-3.96" y="0.49" z="-0.67" taper="0.466" incidence="1" 
-      length="5.16" chord="2.845" sweep="3.5" dihedral="5">
+<wing x="-3.96" y="0.49" z="-0.67" taper="0.466" incidence="-1" 
+      length="5.16" chord="2.845" sweep="3.5" dihedral="5" camber=".1">
   <stall aoa="14" width="4" peak="1.5"/>
   <flap0 start="0.024" end="0.543" lift="1.2" drag="1.4"/>
   <flap1 start="0.543" end="0.97" lift="1.2" drag="1.4"/>
@@ -73,17 +73,17 @@ flap drag not available
   <control-input axis="/controls/flight/aileron-trim" control="FLAP1" split="true"/>
 </wing>
 
-<hstab x="-8.62" y="0.18" z="0.35" taper="0.639" effectiveness="1.0"
+<hstab x="-8.62" y="0.18" z="0.35" taper="0.639" effectiveness="4.0"
        length="1.834" chord="1.256" sweep="0" incidence="2">
   <stall aoa="15" width="4" peak="1.5"/>
-  <flap0 start="0.0" end="1.8" lift="1.5" drag="1.2"/>
+  <flap0 start="0.0" end="1.8" lift="1.65" drag="1.2"/>
   <control-input axis="/controls/flight/elevator" control="FLAP0"/>
   <control-input axis="/controls/flight/elevator-trim" control="FLAP0"/>
   <control-output control="FLAP0" prop="/surface-positions/elevator-pos-norm"/>
 </hstab>
 
 <!-- rudder has to be able to counteract aileron drag -->
-<vstab x="-9.30" y="0" z="-0.37" taper="0.432" effectiveness="1.5"
+<vstab x="-9.30" y="0" z="-0.37" taper="0.432" effectiveness="4.0"
        length="1.971" chord="2.65" sweep="25">
   <stall aoa="15" width="4" peak="1.5"/>
   <flap0 start="0" end="1" lift="1.3" drag="1.2"/>
@@ -110,11 +110,12 @@ flap drag not available
   <control-input axis="/controls/engines/engine[0]/boost" control="BOOST"/>
 </propeller>
 
-<gear x="-7.90" y="0" z="-1.03" compression="0.8" spring="1.0" damp="2">
+<!-- Tail wheel -->
+<gear x="-7.90" y="0" z="-1.03" compression="0.2">
 </gear>
 
  <!-- left main -->
-<gear x="-2.79" y="1.81" z="-2.20" compression="0.8" spring="1.0" damp="3">
+<gear x="-2.79" y="1.81" z="-2.20" compression="0.8" spring="1.0">
   <control-input axis="/controls/gear/wheel[0]/brake" control="BRAKE"/>
   <control-input axis="/controls/gear/parking-brake" control="BRAKE" split="true"/>
   <control-input axis="/controls/gear/gear-down" control="EXTEND"/>
@@ -123,7 +124,7 @@ flap drag not available
 </gear>
 
  <!-- right main -->
-<gear x="-2.79" y="-1.81" z="-2.20" compression="0.8" spring="1.0" damp="3">
+<gear x="-2.79" y="-1.81" z="-2.20" compression="0.8" spring="1.0">
   <control-input axis="/controls/gear/wheel[1]/brake" control="BRAKE"/>
   <control-input axis="/controls/gear/parking-brake" control="BRAKE" split="true"/>
   <control-input axis="/controls/gear/gear-down" control="EXTEND"/>