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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/1.1.1/OpenRocket-1.1.1.jar/download">
50 <strong>Download now!</strong>
51 <span>OpenRocket-1.1.1.jar</span>
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54 <a href="https://sourceforge.net/projects/openrocket/files/openrocket/1.1.1/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">3.9.2010:</span> Version 1.1.1 is
92 <a href="download.html">released</a>!</p>
93 <p>For this release a major part of the simulator code has been
94 rewritten for better flexibility in future development. It also
95 includes a vastly improved thrust curve selection dialog, the
96 possibility to loading user-defined thrust curves and better
97 startup times than previous releases.</p>
98 <p>Simulation listeners written for older versions of OpenRocket
99 are not compatible with this release.</p>
100 <p><span class="date">21.3.2010:</span> Version 1.1.0 is
101 <a href="download.html">released</a>!</p>
102 <p>This release includes the first support for loading RockSim
103 rocket design files (.RKT), thanks to contributions by Doug
104 Pedrick. It's also the kick-off of the 1.1 development branch of
106 <p><span class="date">10.3.2010:</span> Version 1.0.0 is
107 <a href="download.html">released</a>!</p>
108 <p>This release includes several hundred new thrustcurves from
109 <a href="http://www.thrustcurve.org/">thrustcurve.org</a> and some
110 bug fixes. It is also a stable milestone, after which development
111 on larger features will be started in a 1.1 branch. Look out
113 <p><span class="date">17.2.2010:</span> Version 0.9.6 is
114 <a href="download.html">released</a>!</p>
115 <p>This release updates the aerodynamic calculation methods to be
116 more in line with the Barrowman method and enhances the simulation
117 time step selection, in addition to fixing numerous bugs.</p>
118 <p><span class="date">28.11.2009:</span> Version 0.9.5 is
119 <a href="download.html">released</a>!</p>
120 <p>This release <strong>fixes a serious bug in 0.9.4</strong> that
121 prevented adding a tube coupler and centering ring to the same
122 body tube, in addition to a few smaller additions. Users of
123 0.9.4 should upgrade immediately!</p>
124 <p><span class="date">24.11.2009:</span> Version 0.9.4 is
125 <a href="download.html">released</a>!</p>
126 <p>This version adds support for through-the-wall fin tabs,
127 attaching components to coupler tubes, material editing, automatic
128 update checking, in addition to fixing numerous bugs.</p>
129 <p><span class="date">1.9.2009:</span> Version 0.9.3 is
130 <a href="download.html">released</a>!</p>
131 <p>This version includes lots of bug fixes and new features including
132 data exporting, showing flight events in plots, example rocket designs,
133 splitting clustered inner tubes and automated bug reporting.</p>
134 <p><span class="date">13.7.2009:</span> Version 0.9.2 is
135 <a href="download.html">released</a>!</p>
136 <p>This version includes <strong>bug fixes for imperial unit
137 conversions</strong> and UI improvements for motor selection.
138 <em>All users of imperial units should upgrade!</em></p>
139 <p><span class="date">9.6.2009:</span> The
140 <a href="documentation.html">Master's thesis</a> for which OpenRocket
141 was written for is now available!</p>
142 <p>At the same time version 0.9.1 was
143 <a href="download.html">released</a>. This release fixes various
144 file handling bugs and adds small UI enhancements.</p>
145 <p><span class="date">24.5.2009:</span> First version 0.9.0
146 <a href="download.html">released</a>!</p>
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