This 25 pack of A3-4FJ Black Maxx Rocket motors is perfect for small groups and family rocket outings!

Quest Q-Jets are the world's most advanced 18mm model rocket motors. Q-Jet high performance, composite propellant model rocket motors use the same family of solid propellant as NASA’s Space Shuttle Boosters, military missiles, sounding rockets, and NASA’s future SLS moon rocket. They utilize a patent pending high-strength polymer case and bulkhead, ceramic nozzle and RCSs exclusive Black Max aerospace grade composite propellant formulation, which produces nearly double the specific impulse (or ISP, a propellant efficiency rating) of conventional black powder propellant. They are not susceptible to thermal cycling like black powder motors. Q-Jet rocket motors deliver faster lift-offs, visible exhaust plume, denser dark tracking smoke & increased reliability at lift-off.

Certified by the Tripoli Rocketry Association (TRA), the National Association of Rocketry (NAR) and the Canadian Association of Rocketry (CAR).

    Specifications:

    Motor Diameter: 0.71 inches (18mm)

    Casing Length: 2.75 inches (70mm)

    Total Impulse: 2.5 N-sec

    Average Thrust: 3.4 newtons

    Peak Thrust: 7.0 N-sec

    Thrust Duration: 0.80 seconds

    Delay Time: 4 seconds

    Propellant Weight: 2.1 grams

    Motor Weight: 17.9 grams

    Maximum Liftoff Weight: 56 grams

 SHIPPING INFORMATION: 

Rocket Engines will be shipped ground UPS  2 - 5 day service at no extra charge.

Quest model rocketry is recommended for ages 10 and up with adult supervision for those under 12. Unless otherwise specified, all models require assembly. Tools, construction and finishing supplies sold separately. In order to launch, a launch system, model rocket engines, starters and recovery wadding are required - sold separately-unless otherwise specified.