Be careful with this rocket motor. The F22J is a notoriously slow motor, best suited for very lightweight models such as the Aerotech 1.9 kits or the smaller LOC/Precision kits. If you fly it in a suitable rocket, the motor has a nice burn time and will allow for smooth flights to decent altitudes.
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Damaged or defective reloads should be returned to Aerotech.
Read and follow the safety codes of the National Association of Rocketry (NAR) and the Tripoli Rocketry Association and comply with all federal, state and local laws in all activities with hobby rockets.