From df44d7d29a81698bc3b93edee736eff81d0e3443 Mon Sep 17 00:00:00 2001
From: Jonathan Redpath <legoboyvdlp@gmail.com>
Date: Wed, 12 Dec 2018 16:16:25 +0000
Subject: [PATCH 1/8] Update ground reactions (2018.3+ only

---
 Systems/a320-ground-reactions.xml | 175 +++++++++++++++++++++++++++++-
 1 file changed, 173 insertions(+), 2 deletions(-)

diff --git a/Systems/a320-ground-reactions.xml b/Systems/a320-ground-reactions.xml
index 65aeae80..d1686ed5 100644
--- a/Systems/a320-ground-reactions.xml
+++ b/Systems/a320-ground-reactions.xml
@@ -14,14 +14,55 @@
 			<y> 0 </y>
 			<z> -4.31395 </z>
 		</location>
-		<static_friction> 0.4 </static_friction>
+		<static_friction>  1.4 </static_friction> <!-- arbitrarily high to help nose wheel steering - no effect on braking -->
 		<dynamic_friction> 0.6 </dynamic_friction>
 		<rolling_friction> 0.02 </rolling_friction>
 		<spring_coeff unit="LBS/FT"> 30935.5 </spring_coeff>
 		<damping_coeff unit="LBS/FT/SEC"> 16978.5 </damping_coeff>
 		<max_steer unit="DEG"> 70 </max_steer>
-		<brake_group> NOSE </brake_group>
+		<brake_group> NONE </brake_group>
 		<retractable>1</retractable>
+		<table name="CORNERING_COEFF" type="internal">
+			<tableData> <!-- jsbsim-pacejka.py 3.0 0.03 2.85 1.4 1.03 1.4 -->
+				-90.0   -0.6442985279209775
+				-85.0   -0.6580378487851597
+				-80.0   -0.6736754632353241
+				-75.0   -0.6914883537673698
+				-70.0   -0.7117913057097504
+				-65.0   -0.7349321210555212
+				-60.0   -0.7612744182399578
+				-55.0   -0.7911547958017066
+				-50.0   -0.8247883529765628
+				-45.0   -0.8620718432800372
+				-40.0   -0.9021873147129837
+				-35.0   -0.9428278649586711
+				-30.0   -0.9787491275521228
+				-25.0   -0.9992732579219031
+				-20.0   -0.9847198376682035
+				-15.0   -0.9036398486441547
+				-10.0   -0.7177075075244124
+				-5.0    -0.40543502538657494
+				 0.0     0.0
+				 5.0     0.40543502538657494
+				 10.0    0.7177075075244124
+				 15.0    0.9036398486441547
+				 20.0    0.9847198376682035
+				 25.0    0.9992732579219031
+				 30.0    0.9787491275521228
+				 35.0    0.9428278649586711
+				 40.0    0.9021873147129837
+				 45.0    0.8620718432800372
+				 50.0    0.8247883529765628
+				 55.0    0.7911547958017066
+				 60.0    0.7612744182399578
+				 65.0    0.7349321210555212
+				 70.0    0.7117913057097504
+				 75.0    0.6914883537673698
+				 80.0    0.6736754632353241
+				 85.0    0.6580378487851597
+				 90.0    0.6442985279209775
+			</tableData>
+		</table>
 	</contact>
 	<contact type="BOGEY" name="LEFT_MLG">
 		<location unit="M">
@@ -37,6 +78,71 @@
 		<max_steer unit="DEG"> 0.0 </max_steer>
 		<brake_group> LEFT </brake_group>
 		<retractable>1</retractable>
+		<table name="CORNERING_COEFF" type="internal">
+			<tableData> <!-- jsbsim-pacejka.py 3.0 0.015 2.85 1.8 1.03 1.4 -->
+				-90.0   -1.09606496421397
+				-87.0   -1.1118683102220852
+				-84.0   -1.1279939869815452
+				-81.0   -1.1443723877144338
+				-78.0   -1.1609117132073807
+				-75.0   -1.1774929052917256
+				-72.0   -1.1939635877720476
+				-69.0   -1.2101308791218273
+				-66.0   -1.2257529543525665
+				-63.0   -1.2405292688469396
+				-60.0   -1.2540894267913083
+				-57.0   -1.2659807976296544
+				-54.0   -1.2756551769084974
+				-51.0   -1.2824550784430755
+				-48.0   -1.2856006601971353
+				-45.0   -1.2841788499883087
+				-42.0   -1.2771369574269151
+				-39.0   -1.2632839100996072
+				-36.0   -1.241303148871315
+				-33.0   -1.2097819785116246
+				-30.0   -1.1672624879247084
+				-27.0   -1.112318583428734
+				-24.0   -1.0436616783866735
+				-21.0   -0.9602736563617875
+				-18.0   -0.8615596824460499
+				-15.0   -0.747505756009735
+				-12.0   -0.6188180555998167
+				-9.0    -0.47701565456488815
+				-6.0    -0.3244481548757079
+				-3.0    -0.1642176106221613
+				0.0     0.0
+				3.0     0.1642176106221613
+				6.0     0.3244481548757079
+				9.0     0.47701565456488815
+				12.0    0.6188180555998167
+				15.0    0.747505756009735
+				18.0    0.8615596824460499
+				21.0    0.9602736563617875
+				24.0    1.0436616783866735
+				27.0    1.112318583428734
+				30.0    1.1672624879247084
+				33.0    1.2097819785116246
+				36.0    1.241303148871315
+				39.0    1.2632839100996072
+				42.0    1.2771369574269151
+				45.0    1.2841788499883087
+				48.0    1.2856006601971353
+				51.0    1.2824550784430755
+				54.0    1.2756551769084974
+				57.0    1.2659807976296544
+				60.0    1.2540894267913083
+				63.0    1.2405292688469396
+				66.0    1.2257529543525665
+				69.0    1.2101308791218273
+				72.0    1.1939635877720476
+				75.0    1.1774929052917256
+				78.0    1.1609117132073807
+				81.0    1.1443723877144338
+				84.0    1.1279939869815452
+				87.0    1.1118683102220852
+				90.0    1.09606496421397
+			</tableData>
+		</table>
 	</contact>
 	<contact type="BOGEY" name="RIGHT_MLG">
 		<location unit="M">
@@ -52,6 +158,71 @@
 		<max_steer unit="DEG"> 0.0 </max_steer>
 		<brake_group> RIGHT </brake_group>
 		<retractable>1</retractable>
+		<table name="CORNERING_COEFF" type="internal">
+			<tableData>
+				-90.0   -1.09606496421397
+				-87.0   -1.1118683102220852
+				-84.0   -1.1279939869815452
+				-81.0   -1.1443723877144338
+				-78.0   -1.1609117132073807
+				-75.0   -1.1774929052917256
+				-72.0   -1.1939635877720476
+				-69.0   -1.2101308791218273
+				-66.0   -1.2257529543525665
+				-63.0   -1.2405292688469396
+				-60.0   -1.2540894267913083
+				-57.0   -1.2659807976296544
+				-54.0   -1.2756551769084974
+				-51.0   -1.2824550784430755
+				-48.0   -1.2856006601971353
+				-45.0   -1.2841788499883087
+				-42.0   -1.2771369574269151
+				-39.0   -1.2632839100996072
+				-36.0   -1.241303148871315
+				-33.0   -1.2097819785116246
+				-30.0   -1.1672624879247084
+				-27.0   -1.112318583428734
+				-24.0   -1.0436616783866735
+				-21.0   -0.9602736563617875
+				-18.0   -0.8615596824460499
+				-15.0   -0.747505756009735
+				-12.0   -0.6188180555998167
+				-9.0    -0.47701565456488815
+				-6.0    -0.3244481548757079
+				-3.0    -0.1642176106221613
+				0.0     0.0
+				3.0     0.1642176106221613
+				6.0     0.3244481548757079
+				9.0     0.47701565456488815
+				12.0    0.6188180555998167
+				15.0    0.747505756009735
+				18.0    0.8615596824460499
+				21.0    0.9602736563617875
+				24.0    1.0436616783866735
+				27.0    1.112318583428734
+				30.0    1.1672624879247084
+				33.0    1.2097819785116246
+				36.0    1.241303148871315
+				39.0    1.2632839100996072
+				42.0    1.2771369574269151
+				45.0    1.2841788499883087
+				48.0    1.2856006601971353
+				51.0    1.2824550784430755
+				54.0    1.2756551769084974
+				57.0    1.2659807976296544
+				60.0    1.2540894267913083
+				63.0    1.2405292688469396
+				66.0    1.2257529543525665
+				69.0    1.2101308791218273
+				72.0    1.1939635877720476
+				75.0    1.1774929052917256
+				78.0    1.1609117132073807
+				81.0    1.1443723877144338
+				84.0    1.1279939869815452
+				87.0    1.1118683102220852
+				90.0    1.09606496421397
+			</tableData>
+		</table>
 	</contact>
 	
 	<contact type="STRUCTURE" name="NOSE_1">

From 061a2677b32f488415b24bb2858e61e9ac5a6bcb Mon Sep 17 00:00:00 2001
From: Jonathan Redpath <legoboyvdlp@gmail.com>
Date: Wed, 12 Dec 2018 16:22:28 +0000
Subject: [PATCH 2/8] Restore nose chock-brake

---
 Systems/a320-ground-reactions.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Systems/a320-ground-reactions.xml b/Systems/a320-ground-reactions.xml
index d1686ed5..28da3f67 100644
--- a/Systems/a320-ground-reactions.xml
+++ b/Systems/a320-ground-reactions.xml
@@ -20,7 +20,7 @@
 		<spring_coeff unit="LBS/FT"> 30935.5 </spring_coeff>
 		<damping_coeff unit="LBS/FT/SEC"> 16978.5 </damping_coeff>
 		<max_steer unit="DEG"> 70 </max_steer>
-		<brake_group> NONE </brake_group>
+		<brake_group> NOSE </brake_group>
 		<retractable>1</retractable>
 		<table name="CORNERING_COEFF" type="internal">
 			<tableData> <!-- jsbsim-pacejka.py 3.0 0.03 2.85 1.4 1.03 1.4 -->

From 645aa5cc71d7794ab29e7c37857255f0cfe84cbd Mon Sep 17 00:00:00 2001
From: Jonathan Redpath <legoboyvdlp@gmail.com>
Date: Sat, 15 Dec 2018 12:37:13 +0000
Subject: [PATCH 3/8] Disable MLG

---
 Systems/a320-ground-reactions.xml | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/Systems/a320-ground-reactions.xml b/Systems/a320-ground-reactions.xml
index 331f661a..83911c6a 100644
--- a/Systems/a320-ground-reactions.xml
+++ b/Systems/a320-ground-reactions.xml
@@ -76,9 +76,9 @@
 		<spring_coeff unit="LBS/FT"> 59785 </spring_coeff>
 		<damping_coeff unit="LBS/FT/SEC"> 23957 </damping_coeff>
 		<max_steer unit="DEG"> 0.0 </max_steer>
-		<table name="CORNERING_COEFF" type="internal">
-			<tableData> <!-- jsbsim-pacejka.py 3.0 0.015 2.85 1.8 1.03 1.4 -->
-				-90.0   -1.09606496421397
+		<!--<table name="CORNERING_COEFF" type="internal">
+			<tableData>--> <!-- jsbsim-pacejka.py 3.0 0.015 2.85 1.8 1.03 1.4 -->
+				<!---90.0   -1.09606496421397
 				-87.0   -1.1118683102220852
 				-84.0   -1.1279939869815452
 				-81.0   -1.1443723877144338
@@ -140,7 +140,7 @@
 				87.0    1.1118683102220852
 				90.0    1.09606496421397
 			</tableData>
-		</table>
+		</table>-->
 		<brake_group> LEFT </brake_group>
 		<retractable> 1 </retractable>
 	</contact>
@@ -156,7 +156,7 @@
 		<spring_coeff unit="LBS/FT"> 59785 </spring_coeff>
 		<damping_coeff unit="LBS/FT/SEC"> 23957 </damping_coeff>
 		<max_steer unit="DEG"> 0.0 </max_steer>
-		<table name="CORNERING_COEFF" type="internal">
+		<!--<table name="CORNERING_COEFF" type="internal">
 			<tableData>
 				-90.0   -1.09606496421397
 				-87.0   -1.1118683102220852
@@ -220,7 +220,7 @@
 				87.0    1.1118683102220852
 				90.0    1.09606496421397
 			</tableData>
-		</table>
+		</table>-->
 		<brake_group> RIGHT </brake_group>
 		<retractable> 1 </retractable>
 	</contact>

From f92faef8a7d0c975e50eadb7105cf701fb727f19 Mon Sep 17 00:00:00 2001
From: Jonathan Redpath <legoboyvdlp@gmail.com>
Date: Sat, 15 Dec 2018 12:46:19 +0000
Subject: [PATCH 4/8] Add default JSBSIM ground reaction parameters for mlg

---
 Systems/a320-ground-reactions.xml | 208 ++++++++++++------------------
 1 file changed, 80 insertions(+), 128 deletions(-)

diff --git a/Systems/a320-ground-reactions.xml b/Systems/a320-ground-reactions.xml
index 83911c6a..c3d08f49 100644
--- a/Systems/a320-ground-reactions.xml
+++ b/Systems/a320-ground-reactions.xml
@@ -76,71 +76,47 @@
 		<spring_coeff unit="LBS/FT"> 59785 </spring_coeff>
 		<damping_coeff unit="LBS/FT/SEC"> 23957 </damping_coeff>
 		<max_steer unit="DEG"> 0.0 </max_steer>
-		<!--<table name="CORNERING_COEFF" type="internal">
-			<tableData>--> <!-- jsbsim-pacejka.py 3.0 0.015 2.85 1.8 1.03 1.4 -->
-				<!---90.0   -1.09606496421397
-				-87.0   -1.1118683102220852
-				-84.0   -1.1279939869815452
-				-81.0   -1.1443723877144338
-				-78.0   -1.1609117132073807
-				-75.0   -1.1774929052917256
-				-72.0   -1.1939635877720476
-				-69.0   -1.2101308791218273
-				-66.0   -1.2257529543525665
-				-63.0   -1.2405292688469396
-				-60.0   -1.2540894267913083
-				-57.0   -1.2659807976296544
-				-54.0   -1.2756551769084974
-				-51.0   -1.2824550784430755
-				-48.0   -1.2856006601971353
-				-45.0   -1.2841788499883087
-				-42.0   -1.2771369574269151
-				-39.0   -1.2632839100996072
-				-36.0   -1.241303148871315
-				-33.0   -1.2097819785116246
-				-30.0   -1.1672624879247084
-				-27.0   -1.112318583428734
-				-24.0   -1.0436616783866735
-				-21.0   -0.9602736563617875
-				-18.0   -0.8615596824460499
-				-15.0   -0.747505756009735
-				-12.0   -0.6188180555998167
-				-9.0    -0.47701565456488815
-				-6.0    -0.3244481548757079
-				-3.0    -0.1642176106221613
-				0.0     0.0
-				3.0     0.1642176106221613
-				6.0     0.3244481548757079
-				9.0     0.47701565456488815
-				12.0    0.6188180555998167
-				15.0    0.747505756009735
-				18.0    0.8615596824460499
-				21.0    0.9602736563617875
-				24.0    1.0436616783866735
-				27.0    1.112318583428734
-				30.0    1.1672624879247084
-				33.0    1.2097819785116246
-				36.0    1.241303148871315
-				39.0    1.2632839100996072
-				42.0    1.2771369574269151
-				45.0    1.2841788499883087
-				48.0    1.2856006601971353
-				51.0    1.2824550784430755
-				54.0    1.2756551769084974
-				57.0    1.2659807976296544
-				60.0    1.2540894267913083
-				63.0    1.2405292688469396
-				66.0    1.2257529543525665
-				69.0    1.2101308791218273
-				72.0    1.1939635877720476
-				75.0    1.1774929052917256
-				78.0    1.1609117132073807
-				81.0    1.1443723877144338
-				84.0    1.1279939869815452
-				87.0    1.1118683102220852
-				90.0    1.09606496421397
+		<table name="CORNERING_COEFF" type="internal">
+			<tableData> <!-- jsbsim-pacejka.py 3.0 0.06 2.8 0.4 1.03 0.4 -->
+				-90.0   -0.5760395836174765
+				-85.0   -0.5776440181093163
+				-80.0   -0.5803918992801416
+				-75.0   -0.584501031700121
+				-70.0   -0.5902476568617109
+				-65.0   -0.5979865464058901
+				-60.0   -0.6081793463286825
+				-55.0   -0.6214348494943271
+				-50.0   -0.6385661913510731
+				-45.0   -0.660670631169215
+				-40.0   -0.6892340269266316
+				-35.0   -0.7262408296125531
+				-30.0   -0.7741813043425955
+				-25.0   -0.8355026710967954
+				-20.0   -0.9097416834082445
+				-15.0   -0.9818532434458515
+				-10.0   -0.9824937511496707
+				-5.0    -0.7127565569007204
+				 0.0     0.0
+				 5.0     0.7127565569007204
+				 10.0    0.9824937511496707
+				 15.0    0.9818532434458515
+				 20.0    0.9097416834082445
+				 25.0    0.8355026710967954
+				 30.0    0.7741813043425955
+				 35.0    0.7262408296125531
+				 40.0    0.6892340269266316
+				 45.0    0.660670631169215
+				 50.0    0.6385661913510731
+				 55.0    0.6214348494943271
+				 60.0    0.6081793463286825
+				 65.0    0.5979865464058901
+				 70.0    0.5902476568617109
+				 75.0    0.584501031700121
+				 80.0    0.5803918992801416
+				 85.0    0.5776440181093163
+				 90.0    0.5760395836174765
 			</tableData>
-		</table>-->
+		</table>
 		<brake_group> LEFT </brake_group>
 		<retractable> 1 </retractable>
 	</contact>
@@ -156,71 +132,47 @@
 		<spring_coeff unit="LBS/FT"> 59785 </spring_coeff>
 		<damping_coeff unit="LBS/FT/SEC"> 23957 </damping_coeff>
 		<max_steer unit="DEG"> 0.0 </max_steer>
-		<!--<table name="CORNERING_COEFF" type="internal">
-			<tableData>
-				-90.0   -1.09606496421397
-				-87.0   -1.1118683102220852
-				-84.0   -1.1279939869815452
-				-81.0   -1.1443723877144338
-				-78.0   -1.1609117132073807
-				-75.0   -1.1774929052917256
-				-72.0   -1.1939635877720476
-				-69.0   -1.2101308791218273
-				-66.0   -1.2257529543525665
-				-63.0   -1.2405292688469396
-				-60.0   -1.2540894267913083
-				-57.0   -1.2659807976296544
-				-54.0   -1.2756551769084974
-				-51.0   -1.2824550784430755
-				-48.0   -1.2856006601971353
-				-45.0   -1.2841788499883087
-				-42.0   -1.2771369574269151
-				-39.0   -1.2632839100996072
-				-36.0   -1.241303148871315
-				-33.0   -1.2097819785116246
-				-30.0   -1.1672624879247084
-				-27.0   -1.112318583428734
-				-24.0   -1.0436616783866735
-				-21.0   -0.9602736563617875
-				-18.0   -0.8615596824460499
-				-15.0   -0.747505756009735
-				-12.0   -0.6188180555998167
-				-9.0    -0.47701565456488815
-				-6.0    -0.3244481548757079
-				-3.0    -0.1642176106221613
-				0.0     0.0
-				3.0     0.1642176106221613
-				6.0     0.3244481548757079
-				9.0     0.47701565456488815
-				12.0    0.6188180555998167
-				15.0    0.747505756009735
-				18.0    0.8615596824460499
-				21.0    0.9602736563617875
-				24.0    1.0436616783866735
-				27.0    1.112318583428734
-				30.0    1.1672624879247084
-				33.0    1.2097819785116246
-				36.0    1.241303148871315
-				39.0    1.2632839100996072
-				42.0    1.2771369574269151
-				45.0    1.2841788499883087
-				48.0    1.2856006601971353
-				51.0    1.2824550784430755
-				54.0    1.2756551769084974
-				57.0    1.2659807976296544
-				60.0    1.2540894267913083
-				63.0    1.2405292688469396
-				66.0    1.2257529543525665
-				69.0    1.2101308791218273
-				72.0    1.1939635877720476
-				75.0    1.1774929052917256
-				78.0    1.1609117132073807
-				81.0    1.1443723877144338
-				84.0    1.1279939869815452
-				87.0    1.1118683102220852
-				90.0    1.09606496421397
+		<table name="CORNERING_COEFF" type="internal">
+			<tableData> <!-- jsbsim-pacejka.py 3.0 0.06 2.8 0.4 1.03 0.4 -->
+				-90.0   -0.5760395836174765
+				-85.0   -0.5776440181093163
+				-80.0   -0.5803918992801416
+				-75.0   -0.584501031700121
+				-70.0   -0.5902476568617109
+				-65.0   -0.5979865464058901
+				-60.0   -0.6081793463286825
+				-55.0   -0.6214348494943271
+				-50.0   -0.6385661913510731
+				-45.0   -0.660670631169215
+				-40.0   -0.6892340269266316
+				-35.0   -0.7262408296125531
+				-30.0   -0.7741813043425955
+				-25.0   -0.8355026710967954
+				-20.0   -0.9097416834082445
+				-15.0   -0.9818532434458515
+				-10.0   -0.9824937511496707
+				-5.0    -0.7127565569007204
+				 0.0     0.0
+				 5.0     0.7127565569007204
+				 10.0    0.9824937511496707
+				 15.0    0.9818532434458515
+				 20.0    0.9097416834082445
+				 25.0    0.8355026710967954
+				 30.0    0.7741813043425955
+				 35.0    0.7262408296125531
+				 40.0    0.6892340269266316
+				 45.0    0.660670631169215
+				 50.0    0.6385661913510731
+				 55.0    0.6214348494943271
+				 60.0    0.6081793463286825
+				 65.0    0.5979865464058901
+				 70.0    0.5902476568617109
+				 75.0    0.584501031700121
+				 80.0    0.5803918992801416
+				 85.0    0.5776440181093163
+				 90.0    0.5760395836174765
 			</tableData>
-		</table>-->
+		</table>
 		<brake_group> RIGHT </brake_group>
 		<retractable> 1 </retractable>
 	</contact>

From 2d65e94d0ead38b87b12fa4445d53a8c014d1dd8 Mon Sep 17 00:00:00 2001
From: Jonathan Redpath <legoboyvdlp@gmail.com>
Date: Wed, 2 Jan 2019 14:52:38 +0000
Subject: [PATCH 5/8] Revise NWS steer - now linearly reduces to zero after 20
 knots, correct max steer angle to 75 deg

---
 Systems/a320-fcs.xml              | 83 ++++++++++++++++++++++++++-----
 Systems/a320-ground-reactions.xml |  2 +-
 2 files changed, 72 insertions(+), 13 deletions(-)

diff --git a/Systems/a320-fcs.xml b/Systems/a320-fcs.xml
index 51828e5a..d28cdd8a 100644
--- a/Systems/a320-fcs.xml
+++ b/Systems/a320-fcs.xml
@@ -1869,23 +1869,82 @@
 			</test>
 		</switch>
 		
-		<fcs_function name="hydraulics/tiller/function">
+		<fcs_function name="hydraulics/tiller/steer-input">
 			<function>
-				<table>
-					<independentVar lookup="row">/velocities/groundspeed-kt</independentVar>
-					<independentVar lookup="column">hydraulics/tiller/switch</independentVar>
-					<tableData>
-						       -1     0  1
-						30.000 -70.0  0  70.0
-						30.001 -10.0  0  10.0
-					</tableData>
-				</table>
+				<product>
+					<value>75</value>
+					<property>hydraulics/tiller/switch</property>
+				</product>
 			</function>
 		</fcs_function>
 		
+		<fcs_function name="hydraulics/tiller/function-spd-L">
+			<function>
+				<product>
+					<sum>
+						<product>
+							<value>-0.016667</value>
+							<difference>
+								<property>/velocities/groundspeed-kt</property>
+								<v>20</v>
+							</difference>
+						</product>
+						<value>1</value>
+					</sum>
+					<property>hydraulics/tiller/steer-input</property>
+				</product>
+			</function>
+			<clipto>
+				<min>-75</min>
+				<max>  0</max>
+			</clipto>
+		</fcs_function>
+		
+		<fcs_function name="hydraulics/tiller/function-spd-R">
+			<function>
+				<product>
+					<sum>
+						<product>
+							<value>-0.016667</value>
+							<difference>
+								<property>/velocities/groundspeed-kt</property>
+								<v>20</v>
+							</difference>
+						</product>
+						<value>1</value>
+					</sum>
+					<property>hydraulics/tiller/steer-input</property>
+				</product>
+			</function>
+			<clipto>
+				<min>  0</min>
+				<max> 75</max>
+			</clipto>
+		</fcs_function>
+		
+		<switch name="hydraulics/tiller/steer-cmd">
+			<test logic="OR" value="0">
+				position/wow eq 0
+			</test>
+			<test logic="AND" value="hydraulics/tiller/steer-input">
+				/velocities/groundspeed-kt LE 20.000
+				position/wow eq 1
+			</test>
+			<test logic="AND" value="hydraulics/tiller/function-spd-L">
+				/velocities/groundspeed-kt GT 20.000
+				position/wow eq 1
+				hydraulics/tiller/steer-input LT 0
+			</test>
+			<test logic="AND" value="hydraulics/tiller/function-spd-R">
+				/velocities/groundspeed-kt GT 20.000
+				position/wow eq 1
+				hydraulics/tiller/steer-input GT 0
+			</test>
+		</switch>
+		
 		<actuator name="fcs/steer-deg">
-			<input>hydraulics/tiller/function</input>
-			<rate_limit>70</rate_limit>
+			<input>hydraulics/tiller/steer-cmd</input>
+			<rate_limit>75</rate_limit>
 			<output>fcs/steer-pos-deg[0]</output>
 		</actuator>
 		
diff --git a/Systems/a320-ground-reactions.xml b/Systems/a320-ground-reactions.xml
index 09a03b6b..c032f328 100644
--- a/Systems/a320-ground-reactions.xml
+++ b/Systems/a320-ground-reactions.xml
@@ -15,7 +15,7 @@
 		<rolling_friction> 0.02 </rolling_friction>
 		<spring_coeff unit="LBS/FT"> 30935.5 </spring_coeff>
 		<damping_coeff unit="LBS/FT/SEC"> 16978.5 </damping_coeff>
-		<max_steer unit="DEG"> 70 </max_steer>
+		<max_steer unit="DEG"> 95 </max_steer>
 		<table name="CORNERING_COEFF" type="internal">
 			<tableData> <!-- jsbsim-pacejka.py 3.0 0.03 2.85 1.4 1.03 1.4 -->
 				-90.0   -0.6442985279209775

From 71038fe48ccdb7935f7b11466f39ec3f4dd81b11 Mon Sep 17 00:00:00 2001
From: Jonathan Redpath <legoboyvdlp@gmail.com>
Date: Thu, 3 Jan 2019 10:50:02 +0000
Subject: [PATCH 6/8] Revert "Revise NWS steer - now linearly reduces to zero
 after 20 knots, correct max steer angle to 75 deg"

This reverts commit 2d65e94d0ead38b87b12fa4445d53a8c014d1dd8.
---
 Systems/a320-fcs.xml              | 83 +++++--------------------------
 Systems/a320-ground-reactions.xml |  2 +-
 2 files changed, 13 insertions(+), 72 deletions(-)

diff --git a/Systems/a320-fcs.xml b/Systems/a320-fcs.xml
index d28cdd8a..51828e5a 100644
--- a/Systems/a320-fcs.xml
+++ b/Systems/a320-fcs.xml
@@ -1869,82 +1869,23 @@
 			</test>
 		</switch>
 		
-		<fcs_function name="hydraulics/tiller/steer-input">
+		<fcs_function name="hydraulics/tiller/function">
 			<function>
-				<product>
-					<value>75</value>
-					<property>hydraulics/tiller/switch</property>
-				</product>
+				<table>
+					<independentVar lookup="row">/velocities/groundspeed-kt</independentVar>
+					<independentVar lookup="column">hydraulics/tiller/switch</independentVar>
+					<tableData>
+						       -1     0  1
+						30.000 -70.0  0  70.0
+						30.001 -10.0  0  10.0
+					</tableData>
+				</table>
 			</function>
 		</fcs_function>
 		
-		<fcs_function name="hydraulics/tiller/function-spd-L">
-			<function>
-				<product>
-					<sum>
-						<product>
-							<value>-0.016667</value>
-							<difference>
-								<property>/velocities/groundspeed-kt</property>
-								<v>20</v>
-							</difference>
-						</product>
-						<value>1</value>
-					</sum>
-					<property>hydraulics/tiller/steer-input</property>
-				</product>
-			</function>
-			<clipto>
-				<min>-75</min>
-				<max>  0</max>
-			</clipto>
-		</fcs_function>
-		
-		<fcs_function name="hydraulics/tiller/function-spd-R">
-			<function>
-				<product>
-					<sum>
-						<product>
-							<value>-0.016667</value>
-							<difference>
-								<property>/velocities/groundspeed-kt</property>
-								<v>20</v>
-							</difference>
-						</product>
-						<value>1</value>
-					</sum>
-					<property>hydraulics/tiller/steer-input</property>
-				</product>
-			</function>
-			<clipto>
-				<min>  0</min>
-				<max> 75</max>
-			</clipto>
-		</fcs_function>
-		
-		<switch name="hydraulics/tiller/steer-cmd">
-			<test logic="OR" value="0">
-				position/wow eq 0
-			</test>
-			<test logic="AND" value="hydraulics/tiller/steer-input">
-				/velocities/groundspeed-kt LE 20.000
-				position/wow eq 1
-			</test>
-			<test logic="AND" value="hydraulics/tiller/function-spd-L">
-				/velocities/groundspeed-kt GT 20.000
-				position/wow eq 1
-				hydraulics/tiller/steer-input LT 0
-			</test>
-			<test logic="AND" value="hydraulics/tiller/function-spd-R">
-				/velocities/groundspeed-kt GT 20.000
-				position/wow eq 1
-				hydraulics/tiller/steer-input GT 0
-			</test>
-		</switch>
-		
 		<actuator name="fcs/steer-deg">
-			<input>hydraulics/tiller/steer-cmd</input>
-			<rate_limit>75</rate_limit>
+			<input>hydraulics/tiller/function</input>
+			<rate_limit>70</rate_limit>
 			<output>fcs/steer-pos-deg[0]</output>
 		</actuator>
 		
diff --git a/Systems/a320-ground-reactions.xml b/Systems/a320-ground-reactions.xml
index c032f328..09a03b6b 100644
--- a/Systems/a320-ground-reactions.xml
+++ b/Systems/a320-ground-reactions.xml
@@ -15,7 +15,7 @@
 		<rolling_friction> 0.02 </rolling_friction>
 		<spring_coeff unit="LBS/FT"> 30935.5 </spring_coeff>
 		<damping_coeff unit="LBS/FT/SEC"> 16978.5 </damping_coeff>
-		<max_steer unit="DEG"> 95 </max_steer>
+		<max_steer unit="DEG"> 70 </max_steer>
 		<table name="CORNERING_COEFF" type="internal">
 			<tableData> <!-- jsbsim-pacejka.py 3.0 0.03 2.85 1.4 1.03 1.4 -->
 				-90.0   -0.6442985279209775

From 7297a7857c9de500462fff7f0a3481baeeea2499 Mon Sep 17 00:00:00 2001
From: Joshua Davidson <joshuadavidson2000@gmail.com>
Date: Thu, 3 Jan 2019 14:03:30 -0500
Subject: [PATCH 7/8] Sim: Formatting, Control: Change NWS to 75deg

---
 Systems/a320-fcs.xml              |   2 +-
 Systems/a320-ground-reactions.xml | 224 +++++++++++++++---------------
 2 files changed, 113 insertions(+), 113 deletions(-)

diff --git a/Systems/a320-fcs.xml b/Systems/a320-fcs.xml
index 51828e5a..138512d1 100644
--- a/Systems/a320-fcs.xml
+++ b/Systems/a320-fcs.xml
@@ -1885,7 +1885,7 @@
 		
 		<actuator name="fcs/steer-deg">
 			<input>hydraulics/tiller/function</input>
-			<rate_limit>70</rate_limit>
+			<rate_limit>75</rate_limit>
 			<output>fcs/steer-pos-deg[0]</output>
 		</actuator>
 		
diff --git a/Systems/a320-ground-reactions.xml b/Systems/a320-ground-reactions.xml
index 09a03b6b..636ea7b1 100644
--- a/Systems/a320-ground-reactions.xml
+++ b/Systems/a320-ground-reactions.xml
@@ -15,46 +15,46 @@
 		<rolling_friction> 0.02 </rolling_friction>
 		<spring_coeff unit="LBS/FT"> 30935.5 </spring_coeff>
 		<damping_coeff unit="LBS/FT/SEC"> 16978.5 </damping_coeff>
-		<max_steer unit="DEG"> 70 </max_steer>
+		<max_steer unit="DEG"> 75 </max_steer>
 		<table name="CORNERING_COEFF" type="internal">
 			<tableData> <!-- jsbsim-pacejka.py 3.0 0.03 2.85 1.4 1.03 1.4 -->
-				-90.0   -0.6442985279209775
-				-85.0   -0.6580378487851597
-				-80.0   -0.6736754632353241
-				-75.0   -0.6914883537673698
-				-70.0   -0.7117913057097504
-				-65.0   -0.7349321210555212
-				-60.0   -0.7612744182399578
-				-55.0   -0.7911547958017066
-				-50.0   -0.8247883529765628
-				-45.0   -0.8620718432800372
-				-40.0   -0.9021873147129837
-				-35.0   -0.9428278649586711
-				-30.0   -0.9787491275521228
-				-25.0   -0.9992732579219031
-				-20.0   -0.9847198376682035
-				-15.0   -0.9036398486441547
-				-10.0   -0.7177075075244124
-				-5.0    -0.40543502538657494
-				 0.0     0.0
-				 5.0     0.40543502538657494
-				 10.0    0.7177075075244124
-				 15.0    0.9036398486441547
-				 20.0    0.9847198376682035
-				 25.0    0.9992732579219031
-				 30.0    0.9787491275521228
-				 35.0    0.9428278649586711
-				 40.0    0.9021873147129837
-				 45.0    0.8620718432800372
-				 50.0    0.8247883529765628
-				 55.0    0.7911547958017066
-				 60.0    0.7612744182399578
-				 65.0    0.7349321210555212
-				 70.0    0.7117913057097504
-				 75.0    0.6914883537673698
-				 80.0    0.6736754632353241
-				 85.0    0.6580378487851597
-				 90.0    0.6442985279209775
+				-90.0 -0.64429852792097750
+				-85.0 -0.65803784878515970
+				-80.0 -0.67367546323532410
+				-75.0 -0.69148835376736980
+				-70.0 -0.71179130570975040
+				-65.0 -0.73493212105552120
+				-60.0 -0.76127441823995780
+				-55.0 -0.79115479580170660
+				-50.0 -0.82478835297656280
+				-45.0 -0.86207184328003720
+				-40.0 -0.90218731471298370
+				-35.0 -0.94282786495867110
+				-30.0 -0.97874912755212280
+				-25.0 -0.99927325792190310
+				-20.0 -0.98471983766820350
+				-15.0 -0.90363984864415470
+				-10.0 -0.71770750752441240
+				 -5.0 -0.40543502538657494
+				  0.0  0.00000000000000000
+				  5.0  0.40543502538657494
+				 10.0  0.71770750752441240
+				 15.0  0.90363984864415470
+				 20.0  0.98471983766820350
+				 25.0  0.99927325792190310
+				 30.0  0.97874912755212280
+				 35.0  0.94282786495867110
+				 40.0  0.90218731471298370
+				 45.0  0.86207184328003720
+				 50.0  0.82478835297656280
+				 55.0  0.79115479580170660
+				 60.0  0.76127441823995780
+				 65.0  0.73493212105552120
+				 70.0  0.71179130570975040
+				 75.0  0.69148835376736980
+				 80.0  0.67367546323532410
+				 85.0  0.65803784878515970
+				 90.0  0.64429852792097750
 			</tableData>
 		</table>
 		<brake_group> NONE </brake_group>
@@ -74,43 +74,43 @@
 		<max_steer unit="DEG"> 0.0 </max_steer>
 		<table name="CORNERING_COEFF" type="internal">
 			<tableData> <!-- jsbsim-pacejka.py 3.0 0.06 2.8 0.4 1.03 0.4 -->
-				-90.0   -0.5760395836174765
-				-85.0   -0.5776440181093163
-				-80.0   -0.5803918992801416
-				-75.0   -0.584501031700121
-				-70.0   -0.5902476568617109
-				-65.0   -0.5979865464058901
-				-60.0   -0.6081793463286825
-				-55.0   -0.6214348494943271
-				-50.0   -0.6385661913510731
-				-45.0   -0.660670631169215
-				-40.0   -0.6892340269266316
-				-35.0   -0.7262408296125531
-				-30.0   -0.7741813043425955
-				-25.0   -0.8355026710967954
-				-20.0   -0.9097416834082445
-				-15.0   -0.9818532434458515
-				-10.0   -0.9824937511496707
-				-5.0    -0.7127565569007204
-				 0.0     0.0
-				 5.0     0.7127565569007204
-				 10.0    0.9824937511496707
-				 15.0    0.9818532434458515
-				 20.0    0.9097416834082445
-				 25.0    0.8355026710967954
-				 30.0    0.7741813043425955
-				 35.0    0.7262408296125531
-				 40.0    0.6892340269266316
-				 45.0    0.660670631169215
-				 50.0    0.6385661913510731
-				 55.0    0.6214348494943271
-				 60.0    0.6081793463286825
-				 65.0    0.5979865464058901
-				 70.0    0.5902476568617109
-				 75.0    0.584501031700121
-				 80.0    0.5803918992801416
-				 85.0    0.5776440181093163
-				 90.0    0.5760395836174765
+				-90.0 -0.5760395836174765
+				-85.0 -0.5776440181093163
+				-80.0 -0.5803918992801416
+				-75.0 -0.5845010317001210
+				-70.0 -0.5902476568617109
+				-65.0 -0.5979865464058901
+				-60.0 -0.6081793463286825
+				-55.0 -0.6214348494943271
+				-50.0 -0.6385661913510731
+				-45.0 -0.6606706311692150
+				-40.0 -0.6892340269266316
+				-35.0 -0.7262408296125531
+				-30.0 -0.7741813043425955
+				-25.0 -0.8355026710967954
+				-20.0 -0.9097416834082445
+				-15.0 -0.9818532434458515
+				-10.0 -0.9824937511496707
+				 -5.0 -0.7127565569007204
+				  0.0  0.0000000000000000
+				  5.0  0.7127565569007204
+				 10.0  0.9824937511496707
+				 15.0  0.9818532434458515
+				 20.0  0.9097416834082445
+				 25.0  0.8355026710967954
+				 30.0  0.7741813043425955
+				 35.0  0.7262408296125531
+				 40.0  0.6892340269266316
+				 45.0  0.6606706311692150
+				 50.0  0.6385661913510731
+				 55.0  0.6214348494943271
+				 60.0  0.6081793463286825
+				 65.0  0.5979865464058901
+				 70.0  0.5902476568617109
+				 75.0  0.5845010317001210
+				 80.0  0.5803918992801416
+				 85.0  0.5776440181093163
+				 90.0  0.5760395836174765
 			</tableData>
 		</table>
 		<brake_group> LEFT </brake_group>
@@ -130,43 +130,43 @@
 		<max_steer unit="DEG"> 0.0 </max_steer>
 		<table name="CORNERING_COEFF" type="internal">
 			<tableData> <!-- jsbsim-pacejka.py 3.0 0.06 2.8 0.4 1.03 0.4 -->
-				-90.0   -0.5760395836174765
-				-85.0   -0.5776440181093163
-				-80.0   -0.5803918992801416
-				-75.0   -0.584501031700121
-				-70.0   -0.5902476568617109
-				-65.0   -0.5979865464058901
-				-60.0   -0.6081793463286825
-				-55.0   -0.6214348494943271
-				-50.0   -0.6385661913510731
-				-45.0   -0.660670631169215
-				-40.0   -0.6892340269266316
-				-35.0   -0.7262408296125531
-				-30.0   -0.7741813043425955
-				-25.0   -0.8355026710967954
-				-20.0   -0.9097416834082445
-				-15.0   -0.9818532434458515
-				-10.0   -0.9824937511496707
-				-5.0    -0.7127565569007204
-				 0.0     0.0
-				 5.0     0.7127565569007204
-				 10.0    0.9824937511496707
-				 15.0    0.9818532434458515
-				 20.0    0.9097416834082445
-				 25.0    0.8355026710967954
-				 30.0    0.7741813043425955
-				 35.0    0.7262408296125531
-				 40.0    0.6892340269266316
-				 45.0    0.660670631169215
-				 50.0    0.6385661913510731
-				 55.0    0.6214348494943271
-				 60.0    0.6081793463286825
-				 65.0    0.5979865464058901
-				 70.0    0.5902476568617109
-				 75.0    0.584501031700121
-				 80.0    0.5803918992801416
-				 85.0    0.5776440181093163
-				 90.0    0.5760395836174765
+				-90.0 -0.5760395836174765
+				-85.0 -0.5776440181093163
+				-80.0 -0.5803918992801416
+				-75.0 -0.5845010317001210
+				-70.0 -0.5902476568617109
+				-65.0 -0.5979865464058901
+				-60.0 -0.6081793463286825
+				-55.0 -0.6214348494943271
+				-50.0 -0.6385661913510731
+				-45.0 -0.6606706311692150
+				-40.0 -0.6892340269266316
+				-35.0 -0.7262408296125531
+				-30.0 -0.7741813043425955
+				-25.0 -0.8355026710967954
+				-20.0 -0.9097416834082445
+				-15.0 -0.9818532434458515
+				-10.0 -0.9824937511496707
+				 -5.0 -0.7127565569007204
+				  0.0  0.0000000000000000
+				  5.0  0.7127565569007204
+				 10.0  0.9824937511496707
+				 15.0  0.9818532434458515
+				 20.0  0.9097416834082445
+				 25.0  0.8355026710967954
+				 30.0  0.7741813043425955
+				 35.0  0.7262408296125531
+				 40.0  0.6892340269266316
+				 45.0  0.6606706311692150
+				 50.0  0.6385661913510731
+				 55.0  0.6214348494943271
+				 60.0  0.6081793463286825
+				 65.0  0.5979865464058901
+				 70.0  0.5902476568617109
+				 75.0  0.5845010317001210
+				 80.0  0.5803918992801416
+				 85.0  0.5776440181093163
+				 90.0  0.5760395836174765
 			</tableData>
 		</table>
 		<brake_group> RIGHT </brake_group>

From 6b638fbd073ea10dce593d8c17fd351e91e7a800 Mon Sep 17 00:00:00 2001
From: Joshua Davidson <joshuadavidson2000@gmail.com>
Date: Thu, 3 Jan 2019 14:14:08 -0500
Subject: [PATCH 8/8] Control: NWS reduction simulated

---
 AircraftConfig/acconfig.nas |  4 ++--
 INSTALL.md                  |  2 +-
 Systems/a320-fcs.xml        | 13 +++++++------
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/AircraftConfig/acconfig.nas b/AircraftConfig/acconfig.nas
index 5169daba..9fc4f8d5 100644
--- a/AircraftConfig/acconfig.nas
+++ b/AircraftConfig/acconfig.nas
@@ -127,9 +127,9 @@ setlistener("/systems/acconfig/new-revision", func {
 });
 
 var mismatch_chk = func {
-	if (num(string.replace(getprop("/sim/version/flightgear"),".","")) < 201810) {
+	if (num(string.replace(getprop("/sim/version/flightgear"),".","")) < 201830) {
 		setprop("/systems/acconfig/mismatch-code", "0x121");
-		setprop("/systems/acconfig/mismatch-reason", "FGFS version is too old! Please update FlightGear to at least 2018.1.0.");
+		setprop("/systems/acconfig/mismatch-reason", "FGFS version is too old! Please update FlightGear to at least 2018.3.0.");
 		if (getprop("/systems/acconfig/out-of-date") != 1) {
 			error_mismatch.open();
 		}
diff --git a/INSTALL.md b/INSTALL.md
index 140410f6..b1595c2a 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -1,7 +1,7 @@
 # INSTALL
 ## Prerequisites
 Have at least following versions installed:
-* FlightGear 2018.1.0 or newer
+* FlightGear 2018.3.0 or newer
 
 ## Install using ZIP Snapshot
 [Download](https://github.com/it0uchpods/IDG-A32X/archive/master.zip) the zip file.  
diff --git a/Systems/a320-fcs.xml b/Systems/a320-fcs.xml
index 1555c157..06f50e81 100644
--- a/Systems/a320-fcs.xml
+++ b/Systems/a320-fcs.xml
@@ -1877,17 +1877,18 @@
 					</eq>
 					<product>
 						<property>hydraulics/tiller/autopush-cmd</property>
-						<value>70</value>
+						<value>75</value>
 					</product>
 					<table>
 						<independentVar lookup="row">/velocities/groundspeed-kt</independentVar>
 						<independentVar lookup="column">hydraulics/tiller/switch</independentVar>
 						<tableData>
-								   -1     0    1
-							 0.500  00.0  0.0  00.0
-							 1.000 -70.0  0.0  70.0
-							30.000 -70.0  0.0  70.0
-							30.001 -10.0  0.0  10.0
+							        -1     0    1
+							  0.500  00.0  0.0  00.0
+							  1.000 -75.0  0.0  75.0
+							 30.000 -47.0  0.0  47.0
+							 30.001 -06.0  0.0  06.0
+							135.000  00.0  0.0  00.0
 						</tableData>
 					</table>
 				</ifthen>