Motor specifications and performance data
| Manufacturer | Estes Industries |
| Common Name | B4 |
| Availability | regular |
| Impulse Class | B |
| Designation | B4 |
| Maximum Thrust | 12.8N |
| Average Thrust | 4.2N |
| Total Impulse | 5.0Ns |
| Burn Time | 1.03s |
| Total Weight | 18.9g |
| Length | 70.0mm |
| Propellant Weight | 6.0g |
| Diameter | 18.0mm |
| Sparky Motor | false |
| Motor Type | SU |
| Propellant | black powder |
| Delay Options | 2,4,6 |
Motor data sourced from ThrustCurve.org — the motor database for rocketry