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Estes 1/2A3-4T Motors (Bulk Package of 24)

Estes 1/2A3-4T Motors (Bulk Package of 24)

Item is in stock


The Estes 1/2A3-4T engine is a single stage model rocket mini motor designed for flights in lightweight rockets.

This bulk pack comes with all the model rocket motor supplies that you need to launch 24 rockets. Included are 24 model rocket motors, 30 starters (igniters), 24 starter plugs, and 75 squares of recovery wadding.

  • Designation: 1/2A3T
  • Diameter: 13.0000 mm
  • Length: 45.0000 mm
  • Propellant Weight: 2.0000 g
  • Total Weight: 6.6000 g
  • Average Thrust: 3.0306 N
  • Peak Thrust: 7.6200 N
  • Total Impulse: 1.0910 Ns
  • Class: 75% 1/2A

Note: We are required to ship orders containing motors by "surface mail" (Parcel Select). So, please plan on your order taking longer than normal to ship and arrive if it contains motors.

Model rocket motors cannot be shipped outside the US.

Please note that manufacturers sometimes update their products and packaging. If receiving a specific version of a product is important to you, please contact us before ordering.


  • Model: 1788
  • Shipping Weight: 1.2lbs
  • 1 Units in Stock
  • Manufactured by: Estes


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