testAlphaIIIStructure Three fins in finset, so Ixx and Iyy are reduced by a factor of 3 Ixx reduced from 5.2771946530250825E-5 to 1.7590648843416942E-5 Iyy reduced from 1.3580770106050167E-4 to 4.526923368683389E-5 Total rocket MOI changed to Ir=1.8763734635622462E-5 and It=2.1238394331365588E-4 testFalcon9HComponentMOI Three fins in finset, so finset rotational MOI changed from 0.00413298 to 0.001377661595723823 finset longitudinal MOI changed from 0.01215133 to 0.004050443797127646 testFalcon9HeavyBoosterLaunchMOIs Two finsets, each three fins. Each finset's MOI are reduced as in testFalcon9HComponentMOI, resulting in change to totals Ir=0.013480523485489424, It=0.07017476021288252 testFalcon9HeavyBoosterSpentMOIs Two finsets, each three fins, as above Ir=0.010420016485489425, It=0.06398514917026163 testFalcon9HeavyBoosterStageMassOverride Two finsets, each three fins, as above Ir=0.007100144485489424, It=16.030625168315694 testFalcon9HeavyComponentCMxOverride Two finsets, each three fins, as above Ir=0.007100144485489424, It=0.047289449862727435 testFalcon9HeavyComponentMassOverride Two finsets, each three fins, as above Ir=0.026027963480146098, It=0.35928666329363634
OpenRocket
Overview
OpenRocket is a free, fully featured model rocket simulator that allows you to design and simulate your rockets before actually building and flying them.
The main features include:
- Six-degree-of-freedom flight simulation
- Automatic design optimization
- Realtime simulated altitude, velocity and acceleration display
- Staging and clustering support
- Cross-platform (Java-based)
Read more about it on the OpenRocket Wiki.
Installers
OpenRocket maintains an installer for installing the software and Java runtime. You can find the installer for Windows at the link below. Installers for macOS and Linux are coming and will be added to this page when ready.
OpenRocket 15.03 Installer (Windows)
Release Notes
Release notes for all releases of OpenRocket are available at the following link.
License
OpenRocket is an Open Source project licensed under the GNU GPL. This means that the software is free to use for whatever purposes, and the source code is also available for studying and extending.
Contributing
OpenRocket needs help to become even better. Implementing features, writing documentation and creating example designs are just a few ways of helping. If you are interested in helping make OpenRocket the best rocket simulator out there, please click here for information on how to get involved!
Contributors
- Sampo Niskanen, main developer
- Doug Pedrick, support for RockSim designs, printing
- Kevin Ruland, Android version
- Bill Kuker, 3D visualization
- Richard Graham, geodetic computations
- Jason Blood, freeform fin set import
- Boris du Reau, internationalization
Translators
- Tripoli France
- Tripoli Spain
- Stefan Lobas / ERIG
- Mauro Biasutti
- Sky Dart Team
- Vladimir Beran
- Polish Rocketry Society / Łukasz & Alex Kazanski