Part Number Nomenclature

Examples of prefix and suffix components of typical part numbers:

A2938
A = Adapter, 29 = motor size, 38 = motor tube size

RA29L
RA = Retainer Assembly, 29 = motor size, L = motor tube type (per lists below)

RB38P
RB = Retainer Body, 38 = motor size, P = motor tube type (per lists below)

RC54
RC = Retainer Cap, 54 = motor size

RA75
RA = Retainer Assembly, 75 = motor size, no suffix indicates a flange type retainer

TRA3830LA
TRA = Tailcone Retainer Assembly, 38 = motor size, 30 = airframe size (3.0”), L = motor tube type (per lists below), A = Aluminum finish

TRA5439PB
TRA = Tailcone Retainer Assembly, 54 = motor size, 39 = airframe size (3.9”), P = motor tube type (per lists below), B = Black anodized finish

TRB75P
TRB = Tailcone Retainer Body, 75 = motor size, P = motor tube type (per lists below)

TRC7539A
TRC = Tailcone Retainer Cone, 75 = motor size, 39 = airframe size (3.9"), A = Aluminum finish


Reference lists for correct fit of motor retainer to motor mount tube


Examples of fit to motor tube by supplier and type:

24L = Apogee & Estes paper

24L2 = AeroTech & LOC/Precision paper

24P = Performance Rocketry Fiberglass

29L = Apogee, LOC/Precision and Madcow paper

29L2 = AeroTech paper

29L3 = Madcow fiberglass, Performance Rocketry and Wildman "Thin-Wall" fiberglass

29P = Blue Tube, PML and GLR phenolic, Hawk Mt and Performance Rocketry fiberglass

38L = Blue Tube and LOC/Precision paper

38L2 = Wildman "Thin-Wall" fiberglass

38P = Madcow paper, PML and GLR phenolic, Hawk Mt, Performance Rocketry and Madcow fiberglass

54L = Blue Tube, LOC/Precision and Madcow paper

54P = PML and GLR phenolic, Hawk Mt and Performance Rocketry fiberglass

75L = LOC/Precision “Heavy-Wall” paper

75P = Blue Tube, PML and GLR phenolic, Hawk Mt and Performance Rocketry fiberglass

Fit for other brands of motor tubes not listed above:
(dimensions equal outside diameter of motor tube)

24L = 0.976”

24L2 = 1.000”

24P = 1.045”

29L = 1.215”

29L2 = 1.225”

29L3 = 1.255"

29P = 1.270”

38L = 1.630”

38L2 = 1.602"

38P = 1.650”

54L = 2.265”

54P = 2.278”

75L = 3.180”

75P = 3.125”



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