diff --git a/Airports/AI/KSFO/parking.xml b/Airports/AI/KSFO/parking.xml
new file mode 100644
index 000000000..6fc5e502b
--- /dev/null
+++ b/Airports/AI/KSFO/parking.xml
@@ -0,0 +1,1631 @@
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diff --git a/Traffic/UAL/737/N376UA.xml b/Traffic/UAL/737/N376UA.xml
index 95a17d694..59416d389 100644
--- a/Traffic/UAL/737/N376UA.xml
+++ b/Traffic/UAL/737/N376UA.xml
@@ -1,11 +1,11 @@
- Aircraft/737/Models/boeing733.xml
+ Aircraft/737-300/Models/737-300.xml
UAL
UAL
737-300
- 0
+ 10
23
gate
jet_transport
@@ -87,4 +87,4 @@
24Hr
-
\ No newline at end of file
+
diff --git a/Traffic/UAL/737/N377UA.xml b/Traffic/UAL/737/N377UA.xml
index fb5ef7624..af301f412 100644
--- a/Traffic/UAL/737/N377UA.xml
+++ b/Traffic/UAL/737/N377UA.xml
@@ -1,11 +1,11 @@
- Aircraft/737/Models/boeing733.xml
+ Aircraft/737-300/Models/737-300.xml
UAL
UAL
737-300
- 0
+ 10
23
gate
jet_transport
@@ -74,4 +74,4 @@
-
\ No newline at end of file
+
diff --git a/Traffic/UAL/737/N388UA.xml b/Traffic/UAL/737/N388UA.xml
index 3a3e591ca..02f75c6fb 100644
--- a/Traffic/UAL/737/N388UA.xml
+++ b/Traffic/UAL/737/N388UA.xml
@@ -1,11 +1,11 @@
- Aircraft/737/Models/boeing733.xml
+ Aircraft/737-300/Models/737-300.xml
UAL
UAL
737-300
- 0
+ 10
23
gate
jet_transport
@@ -57,4 +57,4 @@
24Hr
-
\ No newline at end of file
+
diff --git a/Traffic/UAL/737/N390UA.xml b/Traffic/UAL/737/N390UA.xml
index 6949c3dec..107edbc52 100644
--- a/Traffic/UAL/737/N390UA.xml
+++ b/Traffic/UAL/737/N390UA.xml
@@ -1,11 +1,11 @@
- Aircraft/737/Models/boeing733.xml
+ Aircraft/737-300/Models/737-300.xml
UAL
UAL
737-300
- 0
+ 10
23
gate
jet_transport
diff --git a/preferences.xml b/preferences.xml
index 96f11c800..cbfc32e2a 100644
--- a/preferences.xml
+++ b/preferences.xml
@@ -401,13 +401,13 @@ Started September 2000 by David Megginson, david@megginson.com
- false
+ true
true
-
+ aircraft_demo