Motor Retainers

Retainers
Motor retainers used in place of engine clip to secure motors in place by pressing motor's thrust ring between the retainer body and the cap. Having a retainer instead of a clip and thrust ring allows use of motors of different lengths. For example installing a 29mm retainer allows you to use hobby-style, HP-style and even HP motors in the rocket.
To install a retainer in a new rocket kit - do not install the thrust ring and engine clip. Attach the retainer base to motor mount tube. Done.
Black powder motors do not have a thrust ring on them, therefore you should install the forward thrust ring in the motor mount tube.

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Retention
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Aeropack 29 mm Retainer Base. L

Aeropack 29 mm Retainer Base. L

29 mm Aluminum Rocket Motor Retainer Base for Apogee, LOC/Precision and Madcow paper tubes (1.215" OD) Installing this retainer body part on your rocket allows you to re-use same retainer cap on all your rockets where this part is installed. Precision Machined 6061-T6 Aluminum With Mil-Spec Type...
$13.00

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Aeropack 29 mm Retainer Base. L2

Aeropack 29 mm Retainer Base. L2

29 mm Aluminum Rocket Motor Retainer Base for AeroTech paper, Madcow fiberglass tubes (1.225" OD) Installing this retainer body part on your rocket allows you to re-use same retainer cap on all your rockets where this part is installed. Precision Machined 6061-T6 Aluminum With Mil-Spec Type II...
$13.00

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Aeropack 29 mm Retainer Base. L3

Aeropack 29 mm Retainer Base. L3

29 mm Aluminum Rocket Motor Retainer Base for Madcow, Performance Rocketry and Wildman "thin wall" fiberglass (1.255" OD) Installing this retainer body part on your rocket allows you to re-use same retainer cap on all your rockets where this part is installed. Precision Machined 6061-T6 Aluminum...
$13.00

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Aeropack 29 mm Retainer Base. P

Aeropack 29 mm Retainer Base. P

29 mm Aluminum Rocket Motor Retainer Base for Blue Tube, PML and GLR phenolic, Hawk Mt and Performance Rocketry fiberglass tubes (1.27" OD) Installing this retainer body part on your rocket allows you to re-use same retainer cap on all your rockets where this part is installed. Precision Machined...
$13.00

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Aeropack 38 mm Retainer Base. L

Aeropack 38 mm Retainer Base. L

38 mm Retainer Base for Blue Tube and Loc Precision paper tubes (1.63" OD) Installing this retainer body part on your rocket allows you to re-use same retainer cap on all your rockets where this part is installed. Precision Machined 6061-T6 Aluminum With Mil-Spec Type II Black Anodizing Large...
$14.00

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Aeropack 38 mm Retainer Base. P

Aeropack 38 mm Retainer Base. P

38 mm Retainer Base for Madcow and Rocketarium paper, PML and GLR phenolic, Hawk Mt, Performance Rocketry and Madcow fiberglass (1.65" OD) Installing this retainer body part on your rocket allows you to re-use same retainer cap on all your rockets where this part is installed. Precision Machined...
$14.00

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Aeropack 54 mm Retainer Base. L

Aeropack 54 mm Retainer Base. L

54 mm Retainer Base for Blue Tube, LOC Precision and Madcow paper tubes (2.265" OD) Installing this retainer body part on your rocket allows you to re-use same retainer cap on all your rockets where this part is installed. Precision Machined 6061-T6 Aluminum With Mil-Spec Type II Black Anodizing...
$16.00

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Aeropack 54 mm Retainer Base. P

Aeropack 54 mm Retainer Base. P

54 mm Retainer Base for PML and GLR phenolic, Hawk Mt and Performance Rocketry fiberglass tubes (2.265" OD) Installing this retainer body part on your rocket allows you to re-use same retainer cap on all your rockets where this part is installed. Precision Machined 6061-T6 Aluminum With Mil-Spec...
$16.00

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Aeropack 75 mm Retainer Base, L

Aeropack 75 mm Retainer Base, L

75 mm Retainer Base for LOC/Precision Heavy Wall motor tubes. (3.18" OD) Light-Weight Body Only, For 75mm Motor Mount Tubes "P" Precision Machined 6061-T6 Aluminum With Mil-Spec Type II Black Anodizing Large Quick-Turn Threads For Fast, Tool-Free Motor Change Installation: Simply Bond To Motor...
$22.00

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Aeropack 75 mm Retainer Base, P

Aeropack 75 mm Retainer Base, P

75 mm Retainer Base for Blue Tube, PML and GLR phenolic, Hawk Mt and Performance Rocketry fiberglass motor tubes. (3.125" OD) Light-Weight Body Only, For 75mm Motor Mount Tubes "P" Precision Machined 6061-T6 Aluminum With Mil-Spec Type II Black Anodizing Large Quick-Turn Threads For Fast, Tool-Free...
$22.00

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