Motor specifications and performance data
| Manufacturer | Ellis Mountain |
| Common Name | J228 |
| Availability | OOP |
| Impulse Class | J |
| Designation | J228 |
| Maximum Thrust | 616.0N |
| Average Thrust | 228.0N |
| Total Impulse | 1115.3Ns |
| Burn Time | 5.00s |
| Total Weight | 839.0g |
| Length | 562.0mm |
| Propellant Weight | 569.0g |
| Diameter | 38.0mm |
| Case | SU 38x562 |
| Sparky Motor | false |
| Motor Type | SU |
| Delay Options | P |
Motor data sourced from ThrustCurve.org — the motor database for rocketry