Transient internal ballistics
Calculates chamber pressure, thrust, burn rate, mass flow, Kn, Kp, and propellant-volume histories in one run.
Capabilities
Engineering depth without workflow friction.
Build a motor case, follow grain regression, read performance, and carry the resulting thrust curve into a coupled vehicle study.
Multiple grain architectures
Handles seven configurations with geometry-specific regression behavior and a dynamic 2D sectional view.
Coupled vehicle dynamics
Combines thrust history with mass, drag, lift, and launch angle to resolve speed and g-force response.
Particle-size studies
Relates PSD compositions to material properties while retaining run-condition notes with the result.
Test-data context
Loads, summarizes, and inspects measured motor data alongside calculated behavior.
Reportable run record
Exports selected modules to a professional PDF and stores the full workspace in a reopenable run file.
WHY PROPULSIONLAB
Designed for traceability—not just a fast-looking answer.
- Repeatable run files
- Visible engineering inputs
- Version-specific validation
- Selectable report scope
Inside the calculation
See the physical story—not only the final number.
01 / GRAIN
Follow sectional regression through time.
Port growth, remaining web, propellant volume, and burning area are read in the same moving view.
Engineering visualization · not test footage
02 / VEHICLE
Carry the thrust curve into vehicle response.
Mass, drag, lift, and launch angle are coupled to speed, g-force, and trajectory histories.
Engineering visualization · not test footage