Enter your rocket's launch weight and desired altitude. Get recommended motor classes, FAA classification, certification requirements, and minimum field size — instantly.
| Class | Impulse Range | FAA Class | Cert Needed | Min. Field Radius | Approx. Altitude* |
|---|
* Altitude estimates assume a typical 8–12 oz rocket. Actual altitude varies significantly with rocket design, weight, and drag. Use OpenRocket or RASAero for precise simulation.
This tool provides guidance based on NFPA 1122/1127 minimum field distances and general motor class characteristics. It is not a substitute for full flight simulation. For precise altitude prediction and stability analysis, use OpenRocket (free, open source) or RASAero II. Always verify FAA classification with the full 14 CFR Part 101 criteria before flying.