Rocket Engines - F23-4FJ Blackmax Econojet Motor (2)


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Quantity: Only 1 left in stock.




Skill Level:Advanced

This Package Contains Two F23-4FJ BlackMax Econojet Composite Model Rocket Engines from Aerotech. Recommended for Ages 16 Years or Older.

  • Used with single stage rockets.
  • The "FJ" stands for Fast Black Jack.
  • Recommended motor matrix: Initiator, HV Arcas, Strong Arm, and Wart-Hog.
  • Primary use is for single stage rockets.
  • Propellant effect is a dense, sooty black smoke.
  • Burn time for this motor is 2.2 seconds.
  • The average thrust of the motor is 5.2 pounds (23 Newtons) however, can peak at 11 pounds (48.7 Newtons).
  • They each have a delay of 4 seconds.
  • Compact motor comes with directions and performance specifications.
  • Contains two 4-1/4" long copperhead igniters and elastic bands.
  • Dimensions: 1.18 x 2.87in (29 x 73mm)
  • Motor Weight: 3.5oz (78gms)
  • Propellant Weight: 32gms
  • Total Impulse: 12.6lb/sec (56N/sec)
  • Maximum Lift-Off Weight: 22oz (620gms)
  • Motor is very hot after firing.
  • Store in a dry place where the temperature is between 45 degrees (F) and 100 degrees (F).
  • See directions for proper disposal method.

Used with permission, copyright 2020 AeroTech Consumer Aerospace. Copyright 2020 Brey Corp. t/a Hobby Works

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