25-Pack A3-4 Q-Jet Model Rocket Motors
$89.99 inc. tax

$89.99 ex. tax
? Tax based on Alaska, United States.

NOTE: All consumer, retailer and wholesaler orders for Q-Jet products (including 2-packs, 25-motor value packs and Astra III starter sets) will initially only be accepted through the Quest website at www.questaerospace.com. Online ordering will be enabled on the Quest website at 11:59 PM MST on Friday evening 3/2/18. We expect a large initial demand for these motors. Payment with order will guarantee each customer's place in line. Customers can request a refund at any time, but they will forfeit their place in line and will go to the end of the queue should they reorder at a later time. We expect the Q-Jet motor preorders to begin shipping in April 2018.

Value pack of 25 ea. A3-4 Q-Jet™ model rocket motors. Includes igniters and wadding.

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: 2.5 N-sec
Burn Time: 0.82 seconds
Average Thrust: 3 newtons
Delay Time: 4 seconds
Propellant Weight: 2.1 grams
Motor Weight: 18.2 grams

Certified by the Tripoli Rocketry Association (TRA)

For RockSim-compatible .rse and .eng files, please visit the link here.


Product Condition:
Quest Aerospace
Product Code:




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