diff --git a/.gitignore b/.gitignore
index efcb7e1..bb74c16 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,5 @@ archivebuild
 osgbuild
 CMakeCache.txt
 *.pyc
+base_package
+extended-data
diff --git a/aircraft.rules b/aircraft.rules
new file mode 100644
index 0000000..04f0b03
--- /dev/null
+++ b/aircraft.rules
@@ -0,0 +1,16 @@
++ /Aircraft
++ /Aircraft/777
++ /Aircraft/777-200
++ /Aircraft/b1900d
++ /Aircraft/CitationX
++ /Aircraft/ZLT-NT
++ /Aircraft/dhc2
++ /Aircraft/Cub
++ /Aircraft/sopwithCamel
++ /Aircraft/f-14b
++ /Aircraft/ASK13
++ /Aircraft/bo105
++ /Aircraft/Dragonfly
++ /Aircraft/SenecaII
++ /Aircraft/A6M2
+- /Aircraft/*
diff --git a/base-package.rules b/base-package.rules
new file mode 100644
index 0000000..e9995ee
--- /dev/null
+++ b/base-package.rules
@@ -0,0 +1,9 @@
+- .git
+- *.xcf
+- *.tex
+
+- /fgdata/Textures/Unused
+- /fgdata/Textures/*.orig
+- /fgdata/Docs/source
+- /fgdata/Models/Airspace
+- /fgdata/Models/MNUAV
diff --git a/build_release_linux.sh b/build_release_linux.sh
index 07c384e..0bec9e0 100755
--- a/build_release_linux.sh
+++ b/build_release_linux.sh
@@ -59,5 +59,25 @@ cp flightgear-*.tar.bz2 ../output/.
 echo "Assembling base package"
 cd $WORKSPACE
 
-tar cjf output/FlightGear-$VERSION-data.tar.bz2 fgdata/
+rm -rf base_package
 
+# a: archive mode
+# z: compress
+# delete: 'delete extraneous files from dest dirs'; avoid bug 1344
+# filter: use the rules in our rules file
+
+echo "Copying FGData files"
+rsync -a --delete \
+ --filter 'merge base-package.rules' \
+  fgdata base_package
+
+echo "Syncing aircraft data"
+rsync -a --delete --filter 'merge aircraft.rules' /home/jenkins/fgaddon-3.6.0/ extended-data
+
+echo "Copying aircraft data"
+rsync -a extended-data/ base_package/fgdata
+
+echo "Creating tar archive"
+pushd base_package
+tar cjf output/FlightGear-$VERSION-data.tar.bz2 fgdata/
+popd