diff --git a/src/Mod/Ship/CMakeLists.txt b/src/Mod/Ship/CMakeLists.txt
index 3106dbc47..7944e4c38 100644
--- a/src/Mod/Ship/CMakeLists.txt
+++ b/src/Mod/Ship/CMakeLists.txt
@@ -116,6 +116,7 @@ SOURCE_GROUP("shipcreatetank" FILES ${ShipCreateTank_SRCS})
 
 SET(ShipGZ_SRCS
 	tankGZ/__init__.py
+	tankGZ/Plot.py
 	tankGZ/TaskPanel.py
 	tankGZ/TaskPanel.ui
 )
diff --git a/src/Mod/Ship/Makefile.am b/src/Mod/Ship/Makefile.am
index 54b7ecf6a..a6d38f500 100644
--- a/src/Mod/Ship/Makefile.am
+++ b/src/Mod/Ship/Makefile.am
@@ -77,6 +77,7 @@ nobase_data_DATA = \
 	tankCreateTank/TaskPanel.py \
 	tankCreateTank/TaskPanel.ui \
 	tankGZ/__init__.py \
+	tankGZ/Plot.py \
 	tankGZ/TaskPanel.py \
 	tankGZ/TaskPanel.ui
 
diff --git a/src/Mod/Ship/tankGZ/Plot.py b/src/Mod/Ship/tankGZ/Plot.py
new file mode 100644
index 000000000..1ce11d344
--- /dev/null
+++ b/src/Mod/Ship/tankGZ/Plot.py
@@ -0,0 +1,186 @@
+#***************************************************************************
+#*                                                                         *
+#*   Copyright (c) 2011, 2012                                              *  
+#*   Jose Luis Cercos Pita <jlcercos@gmail.com>                            *  
+#*                                                                         *
+#*   This program is free software; you can redistribute it and/or modify  *
+#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
+#*   as published by the Free Software Foundation; either version 2 of     *
+#*   the License, or (at your option) any later version.                   *
+#*   for detail see the LICENCE text file.                                 *
+#*                                                                         *
+#*   This program is distributed in the hope that it will be useful,       *
+#*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+#*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+#*   GNU Library General Public License for more details.                  *
+#*                                                                         *
+#*   You should have received a copy of the GNU Library General Public     *
+#*   License along with this program; if not, write to the Free Software   *
+#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+#*   USA                                                                   *
+#*                                                                         *
+#***************************************************************************
+
+import os
+# FreeCAD modules
+import FreeCAD,FreeCADGui
+from FreeCAD import Part, Base
+from FreeCAD import Image, ImageGui
+# FreeCADShip modules
+from shipUtils import Paths, Translator
+
+header = """ #################################################################
+
+ #####                 ####  ###   ####      ##### #   # ### ####
+ #                    #      # #   #   #    #      #   #  #  #   #
+ #     ##  #### ####  #     #   #  #   #     #     #   #  #  #   #
+ ####  # # #  # #  #  #     #####  #   # ##   ##   #####  #  ####
+ #     #   #### ####  #    #     # #   #        #  #   #  #  #
+ #     #   #    #     #    #     # #   #         # #   #  #  #
+ #     #   #### ####   ### #     # ####     #####  #   # ### #
+
+ #################################################################
+"""
+
+class Plot(object):
+    def __init__(self, x, y, disp, draft, trim):
+        """ Constructor. performs plot and show it (Using pyxplot).
+        @param x Roll angles [deg].
+        @param y GZ value [m].
+        @param disp Ship displacement [tons].
+        @param draft Ship draft [m].
+        @param trim Ship trim angle [deg].
+        """
+        if self.createDirectory():
+            return
+        if self.saveData(x,y):
+            return
+        if self.saveLayout(x,y, disp, draft, trim):
+            return
+        if self.execute():
+            return
+        ImageGui.open(self.path + 'gz.png')
+
+    def createDirectory(self):
+        """ Create needed folder to write data and scripts.
+        @return True if error happens.
+        """
+        self.path = FreeCAD.ConfigGet("UserAppData") + "ShipOutput/"
+        if not os.path.exists(self.path):
+            os.makedirs(self.path)
+        if not os.path.exists(self.path):
+            msg = Translator.translate("Can't create '" + self.path + "' folder.\n")
+            FreeCAD.Console.PrintError(msg)
+        return False
+
+    def saveData(self,x,y):
+        """ Write data file.
+        @param x Roll angles.
+        @param y GZ value.
+        @return True if error happens.
+        """
+        # Open the file
+        filename = self.path + 'gz.dat'
+        try:
+            Output = open(filename, "w")
+        except IOError:
+            msg = Translator.translate("Can't write '" + filename + "' file.\n")
+            FreeCAD.Console.PrintError(msg)
+            return True
+        # Print header
+        Output.write(header)
+        Output.write(" #\n")
+        Output.write(" # File automatically exported by FreeCAD-Ship\n")
+        Output.write(" # This file contains transversal GZ stability parameter, filled with following columns:\n")
+        Output.write(" # 1: Roll angles [deg]\n")
+        Output.write(" # 2: GZ [m]\n")
+        Output.write(" #\n")
+        Output.write(" #################################################################\n")
+        # Print data
+        if len(x) < 2:
+            msg = Translator.translate("Not enough data to plot.\n")
+            FreeCAD.Console.PrintError(msg)
+            return True
+        for i in range(0, len(x)):
+            string = "%f %f\n" % (x[i], y[i])
+            Output.write(string)
+        # Close file
+        Output.close()
+        self.dataFile = filename
+        msg = Translator.translate("Data saved at '" + self.dataFile + "'.\n")
+        FreeCAD.Console.PrintMessage(msg)
+        return False
+
+    def saveLayout(self, x, y, disp, draft, trim):
+        """ Prints the data output.
+        @param x Roll angles.
+        @param y GZ value.
+        @param disp Ship displacement.
+        @param draft Ship draft.
+        @param trim Ship trim angle.
+        @return True if error happens.
+        """
+        filename = self.path + 'gz.pyxplot'
+        # Open the file
+        try:
+            Output = open(filename, "w")
+        except IOError:
+            msg = Translator.translate("Can't write '" + filename + "' file.\n")
+            FreeCAD.Console.PrintError(msg)
+            return True
+        # Write header
+        Output.write(header)
+        Output.write(" #\n")
+        Output.write(" # File automatically exported by FreeCAD-Ship\n")
+        Output.write(" # This file contains a script to plot transversal GZ stability parameter.\n")
+        Output.write(" # To use it execute:\n")
+        Output.write(" #\n")
+        Output.write(" # pyxplot %s\n" % (filename))
+        Output.write(" #\n")
+        Output.write(" #################################################################\n")
+        # Write general options for hydrostatics
+        Output.write("set numeric display latex\n")
+        Output.write("set output '%s'\n" % (self.path + 'gz.eps'))
+        Output.write("set nokey\n")
+        Output.write("set grid\n")
+        Output.write("# X axis\n")
+        Output.write("set xlabel '$roll$ / degrees'\n")
+        Output.write("set xtic\n")
+        Output.write("# Y axis\n")
+        Output.write("set ylabel '$GZ$ / m'\n")
+        Output.write("set ytic\n")
+        Output.write("# Line styles\n")
+        Output.write("set style 1 line linetype 1 linewidth 2 colour rgb (0):(0):(0)\n")        
+        # Additional data
+        Output.write("# Additional data\n")
+        Output.write("set label (1) '$\\Delta = %g \\mathrm{tons}$' %f,%f\n" % (disp, x[0] + 0.65*(x[-1] - x[0]), min(y) + 0.95*(max(y)-min(y))))
+        Output.write("set label (2) '$T = %g \\mathrm{m}$' %f,%f\n" % (draft, x[0] + 0.65*(x[-1] - x[0]), min(y) + 0.85*(max(y)-min(y))))
+        Output.write("set label (3) '$Trim = %g^\\circ$' %f,%f\n" % (trim, x[0] + 0.65*(x[-1] - x[0]), min(y) + 0.75*(max(y)-min(y))))
+        # Write plot call
+        Output.write("# Plot\n")        
+        Output.write("plot '%s' using 1:2 title 'GZ' axes x1y1 with lines style 1\n" % (self.dataFile))
+        # Close file
+        self.layoutFile = filename
+        Output.close()
+        return False
+
+    def execute(self):
+        """ Calls pyxplot in order to plot an save an image.
+        @return True if error happens.
+        """
+        filename = self.path + 'gz'
+        comm = "pyxplot %s" % (self.layoutFile)
+        if os.system(comm):
+            msg = Translator.translate("Can't execute pyxplot. Maybe is not installed?\n")
+            FreeCAD.Console.PrintError(msg)
+            msg = Translator.translate("Plot will not generated\n")
+            FreeCAD.Console.PrintError(msg)
+            return True
+        comm = "gs -r300 -dEPSCrop -dTextAlphaBits=4 -sDEVICE=png16m -sOutputFile=%s.png -dBATCH -dNOPAUSE %s.eps" % (filename,filename)
+        if os.system(comm):
+            msg = Translator.translate("Can't execute ghostscript. Maybe is not installed?\n")
+            FreeCAD.Console.PrintError(msg)
+            msg = Translator.translate("Generated image will not converted to png\n")
+            FreeCAD.Console.PrintError(msg)
+            return True
+        return False
diff --git a/src/Mod/Ship/tankGZ/TaskPanel.py b/src/Mod/Ship/tankGZ/TaskPanel.py
index 72a7ef057..5fefccafb 100644
--- a/src/Mod/Ship/tankGZ/TaskPanel.py
+++ b/src/Mod/Ship/tankGZ/TaskPanel.py
@@ -28,6 +28,7 @@ import FreeCADGui as Gui
 # Qt library
 from PyQt4 import QtGui,QtCore
 # Module
+from Plot import *
 from Instance import *
 from TankInstance import *
 from shipUtils import Paths, Translator
@@ -56,6 +57,7 @@ class TaskPanel:
         for i in range(0, nRoll):
             roll.append(i*dRoll)
             GZ.append(self.computeGZ(draft[0], trim, roll[-1]))
+        Plot(roll, GZ, disp[0]/1000.0, draft[0], trim)
         return True
 
     def reject(self):