← all parity reports
Simulation
Kerf vs OpenRocket
OpenRocket simulates the flight — Kerf designs the airframe and electronics that make it fly.
17/17in Kerf today
9/17in OpenRocket (included)
0behind a paid tier
2026-05-24last reviewed
| Capability | Kerf | OpenRocket |
|---|---|---|
| 6-DOF flight dynamics + stability derivsD5 |
yes
packages/kerf-aero/src/kerf_aero/flight_dynamics/sixdof.py
|
yes source ↗ |
| Barrowman aerodynamics / CP-CG stability marginD5 |
yes
packages/kerf-aero/src/kerf_aero/vlm_viscous.py
|
yes source ↗ |
| Standard atmosphere (USSA76)D5 |
yes
packages/kerf-aero/src/kerf_aero/flight_dynamics/atmosphere.py
|
yes source ↗ |
| Drag estimation (form + base + friction + wave)D5 |
yes
packages/kerf-aero/src/kerf_aero/vlm_viscous.py
|
yes source ↗ |
| Fin flutter analysisD5 |
yes
packages/kerf-aero/src/kerf_aero/fin_flutter.py
|
yes source ↗ |
| Motor database integration (Thrustcurve / RASP .eng)D5 |
yes
packages/kerf-aero/src/kerf_aero/propulsion/motor_database.py
|
yes source ↗ |
| Monte-Carlo dispersion / landing scatterD5 |
yes
packages/kerf-aero/src/kerf_aero/monte_carlo.py
|
yes source ↗ |
| Recovery event simulation (parachute / streamer deployment)D5 |
yes
packages/kerf-aero/src/kerf_aero/recovery.py
|
yes source ↗ |
| Propulsion (Tsiolkovsky / staging / specific impulse)D5 |
yes
packages/kerf-aero/src/kerf_aero/propulsion
|
partial source ↗ |
| Trajectory export (CSV / KML)D5 |
yes
packages/kerf-aero/src/kerf_aero/flight_dynamics
|
yes source ↗ |
| Orbital mechanics (Kepler, J2/J3, Hohmann)D5 |
yes
packages/kerf-aero/src/kerf_aero/orbital
|
no source ↗ |
| Airframe 3D B-rep CAD (nose cone, body tube, fins)D1 |
yes
packages/kerf-cad-core/src/kerf_cad_core/brep
|
no source ↗ |
| Assembly BOM (airframe + avionics)D1 |
yes
src/components/BOMPanel.jsx
|
no source ↗ |
| Avionics PCB design (altimeter, GPS, deployment)D6 |
yes
src/components/PCBView.jsx
|
no source ↗ |
| SPICE / pre-compliance sim (ignition driver, RF, power)D6 |
yes
packages/kerf-silicon/src/kerf_silicon/bridges/ngspice_bridge.py
|
no source ↗ |
| Recovery / pyro deployment electronics (e-match driver, dual-deploy)D10 |
yes
src/components/SchematicView.jsx
|
no source ↗ |
| Should-cost estimation (airframe materials + machining)D14 |
yes
packages/kerf-cad-core/src/kerf_cad_core/costing/tolerance_cost.py
|
no source ↗ |
- yes shipped
- partial works with limits
- paid tier present, but behind an add-on or meter
- no not available
Corrections welcome. These rows are read off published documentation on the date shown and go stale as products ship. If a row is wrong, open an issue — the source file is public/compare/openrocket.md and every claim in it carries a link.