Quest Q-jet

Enerjet by AeroTech E20-4W 2-Motor Pack - 52004

Enerjet by AeroTech E20-4W 2-Motor Pack - 52004 - Main image
$28.48 $38.49 In stock

These 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, polymer nozzle and RCSs exclusive White Lightning™ aerospace grade composite propellant formulation, which produces a gorgeous bright white flame with lots of smoke and a throaty roar.

This Enerjet motor pack comes with 2 rocket motors and 2 FirstFire™ Jr. Initiators. This Enerjet motors are U.S. mailable with no hazmat fee!

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

  • Specifications:

    Motor Diameter: 0.938 inches (24mm)

    Casing Length: 2.75 inches (70mm)

    Total Impulse: 35 N-sec

    Average Thrust: 21.8 newtons

    Peak Thrust: 34.9 N-sec

    Thrust Duration: 1.6 seconds

    Delay Time: 4 seconds

    Propellant Weight: 16.2 grams

    Motor Weight: 49 grams

    Maximum Liftoff Weight: Due to the variables involved, AeroTech/Quest currently does not list or post recommended maximum lift-off weights for their mid-power and high-power rocket motors. Instead, we recommend utilizing either the RockSim software available at www.apogeerockets.com or OpenRocket Simulator available at www.openrocket.info.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.5 / 5 · 4 reviews)

Hazel L. ★★★★★

The launch was incredibly smooth with these E20-4W motors — the delay time is perfect for my mid-weight rocket. The two-pack is a great value for getting consistent flights without worrying about duds. Definitely felt the power from the composite propellant on the way up.

Lucy ★★★★★

The composite propellant definitely gives a serious, sustained kick—I could feel the difference in thrust compared to standard motors immediately. Both in the pack lit without a hitch and the delay on the E20-4W was right on the money for my rocket's recovery.

Eva ★★★★★

These lit right up and the boost phase was incredibly smooth – definitely felt more powerful than the standard black powder motors I've used before. The ejection charge popped the parachute out perfectly at apogee on both flights.