• For use in RMS 24mm D, E, F motor.
• Primary use in single stage rockets.
• They deliver power at the lowest per flight cost available in hobby rocketry.
• Black Jack propellant provides the high visibility tracking of dense black exhaust and a distinctive lift-off roar.
• Black Jack motors give your rockets lower acceleration and longer powered flight than White Lightning or Blue Thunder motors of the
• same total impulse.
• The average thrust of the motor is 2.5 pounds (11 Newtons).
• Time delay of 3 seconds between propellant burnout and the firing of the ejection charge.
• Uses the exclusive Copperhead single lead igniter.
• Ignites by electrical means only.
• Certified by the National Association of Rocketry.
• This reload kit includes (3 of each)
• -Liner (7/8" O.D. tube)
• -Propellant Grain (long slotted part)
• -Grain Adaptor (25/32" O.D. Tube)
• -Delay Grain (short solid part)
• -Delay Spacer (9/16" O.D. Washer, O-ring or tube)
• -Delay Insulator (5/8" O.D. tube)
• -Forward Insulator (7/8" O.D. washer)
• -Delay O-Ring (5/8" O.D. x 3/32" thick)
• -Aft O-Ring (3/32" thick x 7/8" O.D.).
• -Forward O-Ring (1/16" thick x 7/8" O.D.)
• -Nozzle (black plastic part).
• -Copperhead Igniter
• -Ejection Charge Container/Nozzle Cap (Red)
• Assembly and operation instructions provided.
• Product warranty policies included.

3-Pak Package of E11-3J Reloadable Motor Systems

• Motor Diameter: 0.94" (24mm)
• Assembled Weight: 2.2oz (61g)
• Maximum Liftoff Weight: 16oz (454g)
• Total Impulse: 35 Newtons