Q-Jet B4-6 (25-pack)

Product Information

B4-6 Q-Jet™ 25-pack 18mm model rocket motors.

The Q-Jets are the world's most advanced 18mm model rocket motors. 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-Jets generate a highly-visible exhaust plume and delay smoke trail. All Q-Jets ship with a FirstFire Micro™ 2-lead igniter, which can be used with any launch controller. All Q-Jet motors are U.S. mailable with no hazmat fee!


Motor Diameter: 0.703" (18mm)
Casing Length: 2.75" (70mm)
Total Impulse: 5.0 N-sec
Burn Time: 1.10 seconds
Average Thrust: 4 newtons
Delay Time: 6 seconds
Propellant Weight: 3.6 grams
Motor Weight: 19.8 grams

Certified by the Tripoli Rocketry Association (TRA)


Earn Reward Points: 72

Earn Discount: $2.16

Product Code2429

Customer Reviews

This product hasn't been reviewed yet.

Write a review

Write Review

Please enter a valid email address.
This field is required.
This field is required.

eCommerce by Rocket Power