OpenRocket 23.09

OpenRocket simulation software

  • By OpenRocket
  • Open Source
  • Updated Nov 15, 2023
Download for Windows

About OpenRocket

OpenRocket is a free, fully featured model rocket simulator that allows you to design and simulate your rockets before actually building and flying them.

What's new in 23.09

New Features:
- 3D Printing Support: Export any component or combination to OBJ file (fixes #604)
- RASAero compatibility: Import/Export CDX1 files (fixes #875 and #1147)
- Dark mode (normal and high-contrast) and custom UI font size support (fixes #1089)
- Export sim table to CSV (fixes #2077)
Bug Fixes:
- Fix Tube fin drag (fixes #2065)
- Fix Base drag when using Cd override (fixes base drag hack sim error, fixes #2118)
- Fix Atmospheric pressure when using ISA conditions (fixes #2103)
- Properly sanitize XML in ORK file (eliminates corrupt ORK files, fixes #2051)
Other New Features
- Bumped app to Java 17
- Export and import preferences to XML file
- Display secondary stability unit.
This means you can display stability in both calibers and percentage of length (fixes #2079)
- Added "cases" and "manufacturers" substitution in motor config names (fixes #2055 and #2204)
- Selection of "common name" or "manufacturer's designation" in motor selection table is now reflected everywhere else in the program (fixes #2072)
- Added "plugged" option in charge delay combobox (fixes #2090)
- Added motor type to "show details" in motor selection (fixes #2069)
- Added instances settings in launch lug config (fixes #2035)
- Account for fin cant in fin root points, and support canted fins in fin marking guide (fixes #2231 and #2242)
- Set cluster tube separation in absolute or relative units (fixes #1970)
- Support transparent rendering and export of Photo Studio images (fixes #2076)
- Added "Select -> Components of same color" and "Select -> None" options (fixes #2129)
- Remember column width, order and visibility in component preset table (fixes #2357)
Bug Fixes
- Fixed mass issues with fin sets (fixes #2217)
- Fixed CG issues for launch lugs and rail buttons (fixes #2040)
- Improved rail button drag calculations
- Added parts detail for pods and boosters (fixes #2084)
- Fixed parachute position when using auto radius (fixes #2036)
- Fixed pod set and booster marker position under certain circumstances (fixes #2047)
- Fix CG marker location in top view (fixes #2050)
- Handle zero-area fins (warn and don't crash with NaN error) (fixes #2032)
- Don't dispose config dialog when no components are selected in 3D view (fixes #2108)
- Display ISA values in temp and pressure fields (fixes #2104)
- Improved simulation of fins on transitions and nose cones (fixes #2113)
- Cleaned up multi-sim editing (fixes #2138 and #1826) …

Full release notes »

Technical details

PublisherOpenRocket
AuthorSampo Niskanen
Version23.09
Release date2023-11-15
LicenseGPL-3.0
Installer typeexe
Architecturex64
Package IDOpenRocket.OpenRocket
Install scopeAll users

Install OpenRocket from the command line

Install with Windows Package Manager
winget install --id=OpenRocket.OpenRocket -e
Update to the latest version
winget upgrade --id=OpenRocket.OpenRocket -e
Uninstall
winget uninstall --id=OpenRocket.OpenRocket -e
Silent install with the offline installer
"OpenRocket-23.09-Windows.exe" -q

OpenRocket version history

22.02 Feb 8, 2023

Frequently asked questions

Is OpenRocket free?

Yes. OpenRocket is free and open-source software released under the GPL-3.0 license.

What is the latest version of OpenRocket?

The latest version is 23.09, released on Nov 15, 2023.

Is it safe to download OpenRocket?

The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 7c9e65111a73ef87aa81ca2147800bd40a470f3d7ef3dc31b9a0342ffae05b2b.

Which Windows versions does OpenRocket support?

OpenRocket runs on Windows and is available for 64-bit (x64) systems.

How do I install OpenRocket silently?

Run the offline installer with "OpenRocket-23.09-Windows.exe" -q, or install it with Windows Package Manager: winget install --id=OpenRocket.OpenRocket -e --silent.

How do I uninstall OpenRocket?

Open Settings › Apps › Installed apps, find OpenRocket and select Uninstall. From the command line, run winget uninstall --id=OpenRocket.OpenRocket -e.