OpenTsiolkovsky is a modern rocket flight simulator with command-line and web interfaces, implemented primarily in Rust with a legacy C++ reference implementation.
- Rocket Simulation: Three-degree-of-freedom and six-degree-of-freedom flight simulation with attitude control (TVC)
- Multi-Platform:
- Rust implementation: Main simulation engine with CLI and WASM support
- Command-line interface (CLI): Fast native execution
- Modern React/TypeScript web frontend: Interactive visualization
- WASM support: Browser-based simulation
- Legacy C++ implementation: Reference implementation in
legacy_cpp/
- Multi-Stage Support: Supports up to three rocket stages
- Trajectory Analysis: Sub-orbital and low Earth orbit trajectories
- Data Export: CSV and JSON output formats
- Real-time Visualization: Interactive 3D trajectory viewer and performance graphs
- Rust (stable) + Cargo
- Bun v1+ (https://bun.sh/)
- Optional: wasm-pack for WASM builds
# Build and run the Rust CLI
cargo run --bin openTsiolkovsky-cli -- --config examples/param_sample_01.json --verbose
# Or build release version
cargo build --release
./target/release/openTsiolkovsky-cli --config examples/param_sample_01.json --output my_resultcd frontend
bun install
bun run dev
# Open http://localhost:5173 in your browser# Install wasm-pack if not already installed
# cargo install wasm-pack
# Build WASM package for frontend
./scripts/wasm_build.shOpenTsiolkovsky/
├── src/ # Main Rust implementation
├── tests/ # Rust integration tests
├── examples/ # Configuration files and sample data
├── frontend/ # React/TypeScript web interface
├── legacy_cpp/ # Legacy C++ implementation (reference)
├── scripts/ # Build scripts (WASM, etc.)
└── docs/ # Documentation
Read more about it on the Wiki
Input file format is following input file format
OpenTsiolkovsky is an Open Source project licensed under the MIT License