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18mm x 70mm

Standard 18mm Diameter Model Rocket Motors


Manufacturer Product Image Item Name Price
Estes Blast-Off Flight Pack Motors (Bulk Package of 24)

Blast-Off Flight Pack Motors (Bulk Package of 24)

The Estes Blast-Off Flight Pack is an assortment of our 24 of our top selling model rocket motors plus igniters and recovery wadding. The package...
$69.99
Save: 10%
Our Price: $62.99

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Estes 1/2A6-2 Motors (Package of 3)

1/2A6-2 Motors (Package of 3)

The Estes 1/2A6-2 engine is a single-stage model rocket motor designed for use in rockets weighing less than two ounces (including the motor). Each...
$10.29
Save: 10%
Our Price: $9.26

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Quest Aerospace A3-4 Q-Jet Model Rocket Motors (Package of Two)

A3-4 Q-Jet Model Rocket Motors (Package of Two)

Quest's Q-Jet 18mm model rocket motors use an aerospace-grade composite propellant. Q-Jets generate a highly-visible exhaust plume and delay smoke...
$7.99
Save: 6%
Our Price: $7.50

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Quest Aerospace A3-6 Q-Jet Model Rocket Motors (Package of Two)

A3-6 Q-Jet Model Rocket Motors (Package of Two)

Quest's Q-Jet 18mm model rocket motors use an aerospace-grade composite propellant. Q-Jets generate a highly-visible exhaust plume and delay smoke...
$7.99
Save: 6%
Our Price: $7.50

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Estes A8-0 Motors (Package of 3)

A8-0 Motors (Package of 3)

The Estes A8-0 engine is a booster stage model rocket motor. This engine is for flights in multi-stage rockets weighing less than four ounces...
$10.29
Save: 10%
Our Price: $9.26

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Estes A8-3 Motors (Package of 3)

A8-3 Motors (Package of 3)

The Estes A8-3 engine is a single-stage model rocket motor designed for use in rockets weighing less than three ounces (including the motor). Each...
$10.29
Save: 10%
Our Price: $9.26

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Estes A8-5 Motors (Package of 3)

A8-5 Motors (Package of 3)

The Estes A8-5 engine is an upper stage model rocket motor. The A8-5 can also be used as a single stage motor in rockets weighing less than 5 ounces...
$10.29
Save: 10%
Our Price: $9.26

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Estes B4-2 Motors (Package of 3)

B4-2 Motors (Package of 3)

The Estes B4-2 engine is a single-stage model rocket motor designed for use in rockets weighing less than four ounces (including the motor). Each...
$10.79
Save: 10%
Our Price: $9.71  $8.45
On Sale Now: 13% off


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Estes B4-4 Motors (Package 3)

B4-4 Motors (Package 3)

The Estes B4-4 engine is a single stage model rocket motor designed for flights in rockets weighing less than 3.5 ounces (including the engine). Each...
$10.79
Save: 10%
Our Price: $9.71  $9.03
On Sale Now: 7% off


... more info

Quest Aerospace B4-4 Q-Jet Model Rocket Motors (Package of Two)

B4-4 Q-Jet Model Rocket Motors (Package of Two)

Quest's Q-Jet 18mm model rocket motors use an aerospace-grade composite propellant. Q-Jets generate a highly-visible exhaust plume and delay smoke...
$8.99
Save: 5%
Our Price: $8.50

... more info



Daily Specials

B6-0 Motors (Package of 3)
B6-0 Motors (Package of 3)
$10.79
Save: 10%
Our Price: $9.71  $8.45
On Sale Now: 13% off
B6-4 Motors (Package 3)
B6-4 Motors (Package 3)
$10.79
Save: 10%
Our Price: $9.71  $8.45
On Sale Now: 13% off
B4-4 Motors (Package 3)
B4-4 Motors (Package 3)
$10.79
Save: 10%
Our Price: $9.71  $9.03
On Sale Now: 7% off
A8-3 Motors (Bulk Package of 24)
A8-3 Motors (Bulk Package of 24)
$71.99
Save: 10%
Our Price: $64.79  $58.96
On Sale Now: 9% off
C11-3 Motors (Package of 2)
C11-3 Motors (Package of 2)
$7.99
Save: 10%
Our Price: $7.19  $6.47
On Sale Now: 10% off
C11-5 Motors (Package of 2)
C11-5 Motors (Package of 2)
$7.99
Save: 10%
Our Price: $7.19  $6.54
On Sale Now: 9% off
C6-3 Motors (Package of 3)
C6-3 Motors (Package of 3)
$11.79
Save: 10%
Our Price: $10.61  $9.44
On Sale Now: 11% off
C6-0 Motors (Package of 3)
C6-0 Motors (Package of 3)
$11.79
Save: 10%
Our Price: $10.61  $9.12
On Sale Now: 14% off
C6-7 Motors (Package of 3)
C6-7 Motors (Package of 3)
$11.79
Save: 10%
Our Price: $10.61  $9.02
On Sale Now: 15% off

Most standard model rocket motors (such as the ones manufactured by Estes or Quest) are 18mm x 70mm in size (about .71 inches in diameter and 2.76 inches in length).



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