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44 <h1>OpenRocket — an Open Source model rocket simulator</h1>
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49 <a class="main" href="https://sourceforge.net/projects/openrocket/files/openrocket/1.1.6/OpenRocket-1.1.6.jar/download">
50 <strong>Download now!</strong>
51 <span>OpenRocket-1.1.6.jar</span>
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54 <a href="https://sourceforge.net/projects/openrocket/files/openrocket/1.1.6/ReleaseNotes/view">Release notes</a> |
55 <a href="download.html">Other versions</a>
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68 <p><strong>OpenRocket</strong> is an free, fully featured model
69 rocket simulator that allows you to design and simulate your
70 rockets before actually building and flying them.</p>
71 <p>OpenRocket features a full six-degree-of-freedom simulation,
72 realistic wind modeling, a multitude of different components
73 including free-form fins and canted fins, clustering and
74 staging. Read more about its <a href="features.html">features
75 and see screenshots</a>.
77 <p>OpenRocket is an Open Source project licensed under the
78 <a href="license.html">GNU GPL</a>. This means that the
79 software is free to use for whatever purposes, and the source
80 code is also available for studying and extending.
82 <p>OpenRocket needs help to become even better. Implementing
83 features, writing documentation and creating example designs are
84 just a few ways of helping. If you are interested in helping
85 make OpenRocket the best rocket simulator out there, please
86 <a href="getinvolved.html"><em>Get involved!</em></a>
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91 <p><span class="date">22.7.2011:</span> Version 1.1.6 is
92 <a href="download.html">released</a>!</p>
93 <p>This release includes initial localization support and
94 translations to French, German and Spanish. This is thanks to the
95 great work of Boris du Reau, and the teams from Tripoli France,
96 Tripoli Spain and ERIG e.V. If you prefer to use some other
97 language than the system default, you can select the language on
98 the "Options" tab of the preferences dialog.</p>
99 <p>The release also includes design scaling support and numerous bug
101 <p><span class="date">10.6.2011:</span> Version 1.1.5 is
102 <a href="download.html">released</a>!</p>
103 <p>This release includes updates to the printing system which fixes
104 printing on Windows.</p>
105 <p><span class="date">5.3.2011:</span> Version 1.1.4 is
106 <a href="download.html">released</a>!</p>
107 <p>This release includes initial printing support, thanks to Doug
108 Pedrick. Printing still has a few issues on some platforms.
109 Various bugs have also been fixed.</p>
110 <p><span class="date">6.10.2010:</span> Version 1.1.3 is
111 <a href="download.html">released</a>!</p>
112 <p>This release includes support for moving and copying components
113 in the component tree using drag-and-drop. Use normal DnD for
114 moving, and control-drag for copy. This release also fixes a
115 severe bug in the undo system.</p>
116 <p><span class="date">7.9.2010:</span> A bug-fix version 1.1.2 is
117 <a href="download.html">released</a>!</p>
118 <p>This release fixes a severe bug in 1.1.1 that prevented adding stages
119 to rocket designs. Users are recommended to upgrade.</p>
120 <p><span class="date">3.9.2010:</span> Version 1.1.1 is
121 <a href="download.html">released</a>!</p>
122 <p>For this release a major part of the simulator code has been
123 rewritten for better flexibility in future development. It also
124 includes a vastly improved thrust curve selection dialog, the
125 possibility to loading user-defined thrust curves and better
126 startup times than previous releases.</p>
127 <p>Simulation listeners written for older versions of OpenRocket
128 are not compatible with this release.</p>
129 <p><span class="date">21.3.2010:</span> Version 1.1.0 is
130 <a href="download.html">released</a>!</p>
131 <p>This release includes the first support for loading RockSim
132 rocket design files (.RKT), thanks to contributions by Doug
133 Pedrick. It's also the kick-off of the 1.1 development branch of
135 <p><span class="date">10.3.2010:</span> Version 1.0.0 is
136 <a href="download.html">released</a>!</p>
137 <p>This release includes several hundred new thrustcurves from
138 <a href="http://www.thrustcurve.org/">thrustcurve.org</a> and some
139 bug fixes. It is also a stable milestone, after which development
140 on larger features will be started in a 1.1 branch. Look out
142 <p><span class="date">17.2.2010:</span> Version 0.9.6 is
143 <a href="download.html">released</a>!</p>
144 <p>This release updates the aerodynamic calculation methods to be
145 more in line with the Barrowman method and enhances the simulation
146 time step selection, in addition to fixing numerous bugs.</p>
147 <p><span class="date">28.11.2009:</span> Version 0.9.5 is
148 <a href="download.html">released</a>!</p>
149 <p>This release <strong>fixes a serious bug in 0.9.4</strong> that
150 prevented adding a tube coupler and centering ring to the same
151 body tube, in addition to a few smaller additions. Users of
152 0.9.4 should upgrade immediately!</p>
153 <p><span class="date">24.11.2009:</span> Version 0.9.4 is
154 <a href="download.html">released</a>!</p>
155 <p>This version adds support for through-the-wall fin tabs,
156 attaching components to coupler tubes, material editing, automatic
157 update checking, in addition to fixing numerous bugs.</p>
158 <p><span class="date">1.9.2009:</span> Version 0.9.3 is
159 <a href="download.html">released</a>!</p>
160 <p>This version includes lots of bug fixes and new features including
161 data exporting, showing flight events in plots, example rocket designs,
162 splitting clustered inner tubes and automated bug reporting.</p>
163 <p><span class="date">13.7.2009:</span> Version 0.9.2 is
164 <a href="download.html">released</a>!</p>
165 <p>This version includes <strong>bug fixes for imperial unit
166 conversions</strong> and UI improvements for motor selection.
167 <em>All users of imperial units should upgrade!</em></p>
168 <p><span class="date">9.6.2009:</span> The
169 <a href="documentation.html">Master's thesis</a> for which OpenRocket
170 was written for is now available!</p>
171 <p>At the same time version 0.9.1 was
172 <a href="download.html">released</a>. This release fixes various
173 file handling bugs and adds small UI enhancements.</p>
174 <p><span class="date">24.5.2009:</span> First version 0.9.0
175 <a href="download.html">released</a>!</p>
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