Standard 18 mm solid-fuel rocket engines designed to launch small model rockets weighing up to ~3 oz total. These motors deliver a consistent thrust profile that propels rockets to low-to-moderate altitudes while providing a delay phase that allows rockets to coast to apogee before activating recovery systems.
Single-stage solid propellant motor optimized for standard-class model rocket flight
Industry-standard 18 mm diameter with ~2.8 in length for secure fit in common motor mounts
Thrust duration around 0.8 s for controlled initial acceleration and stable liftoff
Total impulse ~2.50 N·s balancing moderate power with predictable performance
3-second delay segment enables coast to apogee prior to ejection charge activation
Maximum thrust ~10.7 N supports rockets weighing up to ~3 oz (~85 g)
Reinforced casing and consistent propellant distribution promote repeatable flight behavior