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.
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A8-3 Bulk Pack of 24 18mm Motors
Estes
MSRP: $71.99$61.19This 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-1781MSRP: $71.99$61.19 -
B6-4 Bulk Pack of 24 18mm Motors
Estes
MSRP: $72.99$62.04This 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-1783MSRP: $72.99$62.04