18 mm Motors

18 mm Motors

18mm wide by 70mm long, these motors are the most common of the model rocketry fleet.  They range in total impulse from 1/2A (0.626 Ns) to D (20 Ns), and can power small to mid size rockets to altitudes well over 1000 feet.  Be sure you review the Model Rocketry Safety Code to make sure your launch site is large enough for the motors you are flying.

  • A8-3 Bulk Pack of 24 18mm Motors This item can ship inexpensively via USPS Parcel Post, or you can pick it up in person for free!

    A8-3 Bulk Pack of 24 18mm Motors

    Estes

    MSRP: $71.99
    $61.19
    This is a bulk pack of 24 18mm A8-3 model rocket motors, intended for group launches, packaged in bulk to lower the price per motor. Includes 24 A8-3 model rocket motors, 30 igniters, 30 igniter plugs, and 72 sheets of recovery wadding.
    EST-1781
    MSRP: $71.99
    $61.19
  • B6-4 Bulk Pack of 24 18mm Motors This item can ship inexpensively via USPS Parcel Post, or you can pick it up in person for free!

    B6-4 Bulk Pack of 24 18mm Motors

    Estes

    MSRP: $72.99
    $62.04
    This is a bulk pack of 24 18mm B6-4 model rocket motors, intended for group launches, packaged in bulk to lower the price per motor. Includes 24 B6-4 model rocket motors, 30 igniters, 30 igniter plugs, and 72 sheets of recovery wadding.
    EST-1783
    MSRP: $72.99
    $62.04