Motors by Diameter

Motors by Diameter

Model rocket motors by diameter, from 13mm (Estes Mini-motor size) to 98mm (K - O size).

  • Estes 1/2A3-2T Model Rocket Motor 4 Pack Front View This item can ship inexpensively via USPS Parcel Post, or you can pick it up in person for free!
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    Estes

    1/2A3-2T 13mm Motor

    MSRP: $10.29
    $8.99
    This is an ideal motor for flying small rockets like Rocketry Works' Luna on a small field.  4 motors, plus 4 igniters and 4 igniter plugs per pack. Must ship ground only.
    EST-1503
  • Bulk pack of 24 1/2A3-4T 13mm model rocket motors This item can ship inexpensively via USPS Parcel Post, or you can pick it up in person for free!
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    Estes

    1/2A3-4T Bulk Pack of 24 13mm Motors

    MSRP: $57.79
    $49.12
    This is a bulk pack of 24 13mm 1/2A3-4T model rocket motors, intended for group launches, packaged in bulk to lower the price per motor. Includes 24 1/2A3-4T model rocket motors, 30 igniters, 30 igniter plugs, and 72 sheets of recovery wadding.
    EST-1788
  • Estes A10-PT Plugged Model Rocket Motor 4 Pack Front View This item can ship inexpensively via USPS Parcel Post, or you can pick it up in person for free!
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    Estes

    A10-PT 13mm Motor

    MSRP: $10.29
    $8.99
    This is a specialized motor by Estes Rockets, because it does not have a delay or an ejection charge so it will not deploy a recovery device. Instead, it is plugged at the top to prevent propellant blow-through from damaging your model. This motor is...
    EST-1505
  • Estes A10-3T Model Rocket Motor 4 Pack Front View This item can ship inexpensively via USPS Parcel Post, or you can pick it up in person for free!
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    Estes

    A10-3T 13mm Motor

    MSRP: $10.29
    $8.99
    The A10-3T model rocket motor by Estes is a high thrust 13mm motor that is good at getting heavier small models off the pad and up to flying speed. 4 motors, plus igniters and igniter plugs per pack. Must ship ground only.
    EST-1511
  • 2 pack of A3-4 Motors This item can ship inexpensively via USPS Parcel Post, or you can pick it up in person for free!
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    Quest

    A3-4 18mm Motor

    MSRP: $7.99
    $6.79
    2 pack of Quests's Black Jack composite propellant 18mm A3-4 model rocket motor. 2 motors, plus igniters and igniter plugs per pack. Must ship ground only.
    Q-6108
  • 2 pack of A3-6 Motors This item can ship inexpensively via USPS Parcel Post, or you can pick it up in person for free!
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    Quest

    A3-6 18mm Motor

    MSRP: $7.99
    $6.79
    2 pack of Quests's Black Jack composite propellant 18mm A3-6 model rocket motor. 2 motors, plus igniters and igniter plugs per pack. Must ship ground only.
    Q-6109