Canadian Rocket Store

     

Minimum Diameter Retainers

Back to Motor Retention
Back to Motor Retention
These bulkhead Retainers below are used to securely hold the motors in Minimum-Diameter Rockets. The Retainer is glued into the body of the rocket then you just slide the motor in and screw onto the stud.
The Retainer is installed to accommodate the largest motor you plan to use for the rocket and Extensions are used to install smaller motors.

38mm MD Retainer with Bypass holes and Eye-Bolt
38mm MD Retainer with Bypass holes and Eye-Bolt
Minimum Diameter Retainer, 38mm, with Bypass Holes and Eye-Bolt. For 38mm Minimum Diameter Airframes or 38mm Motor Mount Tubes Includes Holes That...
$29.20

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54mm MD Motor Retainer with welded Eye-Bolt
54mm MD Motor Retainer with welded Eye-Bolt
Minimum Diameter Motor Retainer, 54mm, with 3/16 Welded SS Eye-Bolt For 54mm Minimum Diameter Airframes or 54mm Motor Mount Tubes Precision Machined...
$34.60

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Cesaroni Pro38 Delay/Eject-Closure Adapter
Cesaroni Pro38 Delay/Eject-Closure Adapter
Attaches To Pro38 Delay/Eject-Closure Has 5/16-18 Threaded Hole In Top Allows Pro38 Motor To Mount On Aero Pack M38 Bulkhead Retainer Pilot Pin Seals...
$16.00

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Cesaroni Pro54 Delay/Eject-Closure Adapter
Cesaroni Pro54 Delay/Eject-Closure Adapter
Attaches To Pro54 Delay/Eject-Closure Has 5/16-18 Threaded Hole In Top Allows Pro54 Motor To Mount On Aero Pack M54 Bulkhead Retainer Pilot Pin Seals...
$18.60

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MD Extension, 5/16 Stud, 1.8-2.2"L
MD Extension, 5/16 Stud, 1.8-2.2"L
Minimum Diameter Retainer Extension, 5/16 Stud, 1.8-2.2" Length For 38mm & 54mm Minimum Diameter Retainers Allows Use Of Shorter Length Motors...
$12.00

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MD Extension, 5/16 Stud, 2.2-3.0"L
MD Extension, 5/16 Stud, 2.2-3.0"L
Minimum Diameter Retainer Extension, 5/16 Stud, 2.2-3.0" Length For 38mm & 54mm Minimum Diameter Retainers Allows Use Of Shorter Length Motors...
$14.00

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MD Extension, 5/16 Stud, 3.0-4.5"L
MD Extension, 5/16 Stud, 3.0-4.5"L
Minimum Diameter Retainer Extension, 5/16 Stud, 3.0-4.5"L Length For 38mm & 54mm Minimum Diameter Retainers Allows Use Of Shorter Length Motors...
$16.60

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MD Extension, 5/16 Stud, 4.5-6.6"L
MD Extension, 5/16 Stud, 4.5-6.6"L
Minimum Diameter Retainer Extension, 5/16 Stud, 4.5-6.6" Length For 38mm & 54mm Minimum Diameter Retainers Allows Use Of Shorter Length Motors...
$18.60

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MD Extension Set, 4 each for 5/16 Studs
MD Extension Set, 4 each for 5/16 Studs
For 38mm & 54mm Minimum Diameter Retainers Allows Use Of Shorter Length Motors Includes 4 extensions, one each M1E1.8, M1E2.2, M1E3.0, M1E4.5...
$58.90

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