diff --git a/src/Airports/GenAirports/process.sh b/src/Airports/GenAirports/process.sh
new file mode 100755
index 00000000..14021753
--- /dev/null
+++ b/src/Airports/GenAirports/process.sh
@@ -0,0 +1,13 @@
+#! /bin/bash
+
+# Previously Skipped: EBPP
+# Manually removed: NZSP (led to a runway around the world)
+# Fixed: YSAR (was marked as land airport, but was a heliport)
+
+WORKDIR=$HOME/workdirs/world_scenery
+#APTDAT="/home/martin/GIT/fgdata/Airports/apt.dat.gz"
+#APTDAT="/home/rgerlich/rawdata/apt.dat.gz"
+APTDAT="/home/rgerlich/rawdata/apt.helidat.gz"
+SPAT="--nudge=20"
+
+exec /usr/bin/time genapts --input=$APTDAT --work=$WORKDIR $SPAT > genapts.log 2>&1
diff --git a/src/BuildTiles/Main/construct.sh b/src/BuildTiles/Main/construct.sh
new file mode 100755
index 00000000..aeb7caae
--- /dev/null
+++ b/src/BuildTiles/Main/construct.sh
@@ -0,0 +1,8 @@
+#! /bin/bash
+
+./start_construct_server.sh
+
+# Start 4 clients
+for f in 1 2; do
+    ./start_construct_client.sh $f
+done
\ No newline at end of file
diff --git a/src/Prep/DemChop/chopsrtm1.sh b/src/Prep/DemChop/chopsrtm1.sh
new file mode 100755
index 00000000..ee03a920
--- /dev/null
+++ b/src/Prep/DemChop/chopsrtm1.sh
@@ -0,0 +1,8 @@
+#! /bin/bash
+
+DATADIR=/home/martin/archive/GIS/GISData/SRTM/version2_1/HGT/SRTM1/
+WORKDIR=$HOME/workdirs/world_scenery
+
+for file in "$DATADIR/"Region_*/*.hgt.zip; do
+	hgtchop 1 $file $WORKDIR/SRTM2-America-1
+done
diff --git a/src/Prep/DemChop/chopsrtm3.sh b/src/Prep/DemChop/chopsrtm3.sh
new file mode 100755
index 00000000..22a448e7
--- /dev/null
+++ b/src/Prep/DemChop/chopsrtm3.sh
@@ -0,0 +1,13 @@
+#! /bin/bash
+
+echo "Available regions: Africa Australia Eurasia Islands North_America South_America"
+
+#DATADIR=/mnt/agami/custom_scenery/SRTM/version2/HGT
+DARADIR=/home/martin/archive/GIS/GISData/SRTM/version2_1/HGT/SRTM3/
+WORKDIR=$HOME/workdirs/world_scenery
+
+for region in Africa Australia Eurasia Islands North_America South_America; do
+    for file in "$DATADIR/$region/"*.hgt.zip; do
+	hgtchop 3 $file $WORKDIR/SRTM2-$region-3
+    done
+done
diff --git a/src/Prep/DemChop/process-DEM-30.sh b/src/Prep/DemChop/process-DEM-30.sh
index b78224c8..2bbdf828 100755
--- a/src/Prep/DemChop/process-DEM-30.sh
+++ b/src/Prep/DemChop/process-DEM-30.sh
@@ -1,28 +1,7 @@
-#!/bin/sh
-#
+#! /bin/bash
 
-TOOLPATH=`pwd`
-SOURCE=/stage/fgfs01/curt/RawData/DEM-30-Ascii
-SCRATCH=/tmp/Scratch
-WORK=/stage/fgfs04/curt/Work/DEM-30-New
+WORKDIR=$HOME/workdirs/world_scenery
 
-if [ -z $1 ]; then
-    echo "usage: $0 base-dem-30-ascii-file"
-    exit
-fi
-
-if [ ! -d $SCRATCH ]; then
-    mkdir -p $SCRATCH
-fi
-
-cd ${SCRATCH} || exit
-echo "cd to $SCRATCH successful"
-
-tar xzvf ${SOURCE}/${1}.tar.gz
-
-for i in ${SCRATCH}/$1/*.dem; do
-    ${TOOLPATH}/demchop $i $WORK >> ${TOOLPATH}/log-$1 2>&1
-done
-
-echo rm -rf ${SCRATCH}
-rm -rf ${SCRATCH}
+for f in $WORKDIR/SRTM-30-ASCII/*/*.dem; do
+    demchop $f $WORKDIR/SRTM-30
+done
\ No newline at end of file
diff --git a/src/Prep/DemRaw2ascii/process.sh b/src/Prep/DemRaw2ascii/process.sh
index 0cad9821..a35d96df 100755
--- a/src/Prep/DemRaw2ascii/process.sh
+++ b/src/Prep/DemRaw2ascii/process.sh
@@ -1,39 +1,15 @@
-#!/bin/sh
-#
-
-TOOLPATH=`pwd`
-SOURCE=/stage/fgfs01/curt/RawData/DEM-30-Bin
-OUTPUTBASE=/stage/fgfs01/curt/RawData/DEM-30-Ascii
-
-SCRATCH=${SOURCE}/Scratch
-
-# clean the scratch space
-echo rm -rf ${SCRATCH}/*
-rm -rf ${SCRATCH}/*
-
-cd ${SCRATCH} || exit
-echo "cd to $SCRATCH successful"
-
-tar xzvf ${SOURCE}/${1}.tar.gz
-
-NAME=`echo *.DEM`
-
-BASE=`basename $NAME .DEM`
-LOWBASE=`echo $BASE | tr A-Z a-z`
-
-OUTPUT=${OUTPUTBASE}/${LOWBASE}
-
-echo mkdir -p $OUTPUT
-mkdir -p $OUTPUT
-
-${TOOLPATH}/raw2ascii ${SCRATCH}/${BASE} ${OUTPUT}
-
-cd ${OUTPUTBASE} || exit
-echo "cd to $OUTPUTBASE successful"
-
-tar czvf ${LOWBASE}.tar.gz ${LOWBASE}
-
-echo rm -rf ${LOWBASE}
-rm -rf ${LOWBASE}
+#! /bin/bash
 
+#DATADIR=/mnt/geothumper/data/custom_scenery/SRTM/srtm30/
+DATADIR=/home/martin/archive/GIS/GISData/SRTM/version2_1/HGT/SRTM30
+WORKDIR=$HOME/workdirs/world_scenery
 
+for file in e020n90  e060n90  e100n90  e140n90  w020n90  w060n90  w100n90  w140n90  w180n90; do
+    unzip $DATADIR/$file/$file.dem.zip
+    unzip $DATADIR/$file/$file.hdr.zip
+    UPPERBASE=`echo $file | tr a-z A-Z`
+    OUTPUTDIR=$WORKDIR/SRTM-30-ASCII/$file
+    mkdir -p $OUTPUTDIR
+    raw2ascii $UPPERBASE $OUTPUTDIR
+    rm $UPPERBASE.{DEM,HDR}
+done