From e7c4d83bce834decd1aa23c0749989659b243f59 Mon Sep 17 00:00:00 2001
From: aross <aross>
Date: Sat, 30 Nov 2002 07:20:41 +0000
Subject: [PATCH] Misc tweaks.  I honestly forget the reasoning behind some of
 these changes.

---
 Aircraft-yasim/747.xml  |  4 ++--
 Aircraft-yasim/a4.xml   | 11 +++++++----
 Aircraft-yasim/c172.xml |  4 ++--
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/Aircraft-yasim/747.xml b/Aircraft-yasim/747.xml
index 82ac7081e..4f39103da 100644
--- a/Aircraft-yasim/747.xml
+++ b/Aircraft-yasim/747.xml
@@ -24,7 +24,7 @@
 
 <wing x="-2" y="3.01" z="-1.45" length="33.72" chord="13.25" sweep="33"
       taper=".27" dihedral="7" camber="0.15" incidence="-0.7">
-  <stall aoa="15" width="2" peak="1.5"/>
+  <stall aoa="12" width="2" peak="2"/>
   <flap0 start="0" end=".56" lift="1.8" drag="1.2"/>
   <flap1 start=".64" end=".88" lift="1.3" drag="1.2"/>
   <slat start="0" end="1" aoa="2" drag="1.1"/>
@@ -43,7 +43,7 @@
 </wing>
 
 <hstab x="-38.13" y="1.81" z="1.81" chord="8.43" length="10.84" taper=".29"
-       sweep="28" dihedral="7" camber="-0.1" effectiveness="1.5">
+       sweep="28" dihedral="7" camber="-0.1" effectiveness="2.3">
   <stall aoa="15" width="2" peak="1.5"/>
   <flap0 start="0" end="1" lift="1.6" drag="1.2"/>
   <control-input axis="/controls/elevator" control="FLAP0"/>
diff --git a/Aircraft-yasim/a4.xml b/Aircraft-yasim/a4.xml
index fe345b68b..4735b1f87 100644
--- a/Aircraft-yasim/a4.xml
+++ b/Aircraft-yasim/a4.xml
@@ -23,7 +23,7 @@
       length="4.04" chord="3.95" sweep="28" dihedral="0" camber="0.02">
   <stall aoa="27" width="10" peak="1.3"/>
   <flap0 start="0.0" end="0.5" lift="1.3" drag="1.2"/>
-  <flap1 start="0.5" end="1.0" lift="1.25" drag="1.3"/>
+  <flap1 start="0.5" end="1.0" lift="1.2" drag="1.2"/>
   <control-input axis="/controls/flaps" control="FLAP0"/>
   <control-input axis="/controls/aileron" control="FLAP1" split="true"/> 
   <control-input axis="/controls/aileron-trim" control="FLAP1" split="true"/> 
@@ -55,7 +55,8 @@
 </vstab>
 
 <!-- P&W J52-P-6A turbojet, 8500 lbs sea level thrust -->
-<jet x="0.61" y="0" z="0.11" mass="1800" thrust="8500" n1-max="106">
+<jet x="0.61" y="0" z="0.11" mass="1800" thrust="8500" n1-max="106"
+     exhaust-speed="2000">
   <control-input axis="/controls/throttle[0]" control="THROTTLE"/>
 </jet>
 
@@ -69,7 +70,8 @@
 </gear>
 
 <!-- left main -->
-<gear x="-1.39" y="1.19" z="-1.89" retract-time="7" compression=".78">
+<gear x="-1.39" y="1.19" z="-1.89" retract-time="7" compression=".78"
+      damp="2">
   <control-input axis="/controls/brakes[0]" control="BRAKE"/>
   <control-input axis="/controls/gear-down" control="EXTEND"/>
   <control-output control="EXTEND" prop="/gear/gear[1]/position-norm"/>
@@ -78,7 +80,8 @@
 </gear>
 
 <!-- right main -->
-<gear x="-1.39" y="-1.19" z="-1.89" retract-time="7" compression=".78">
+<gear x="-1.39" y="-1.19" z="-1.89" retract-time="7" compression=".78"
+      damp="2">
   <control-input axis="/controls/brakes[1]" control="BRAKE"/>
   <control-input axis="/controls/gear-down" control="EXTEND"/>
   <control-output control="EXTEND" prop="/gear/gear[2]/position-norm"/>
diff --git a/Aircraft-yasim/c172.xml b/Aircraft-yasim/c172.xml
index 47bd9a052..d64026e39 100644
--- a/Aircraft-yasim/c172.xml
+++ b/Aircraft-yasim/c172.xml
@@ -35,9 +35,9 @@
   <control-speed control="FLAP0" transition-time="6"/>
 </wing>
 
-<hstab x="-7.16" y="0.08" z=".17" taper=".63"
+<hstab x="-7.16" y="0.08" z=".17" taper=".63" effectiveness="2"
        length="1.71" chord="1.36" sweep="0">
-  <stall aoa="16" width="4" peak="1.5"/>
+  <stall aoa="18" width="4" peak="1.5"/>
   <flap0 start="0" end="1" lift="1.7" drag="1.2"/>
   <control-input axis="/controls/elevator" control="FLAP0"/>
   <control-input axis="/controls/elevator-trim" control="FLAP0"/>