Tube Size Chart
Body Tube Size Chart
October 20, 2023

Over on Ye Olde Rocket Forum user luke strawwalker compiled a handy list of body tube sizes. The original list can be found here. I have created the following handy table based on his data, with some minor revisions to make my understanding better.

Regarding Notation: Estes tube sizes are indicated by a BT- prefix. Centuri tube sizes are indicated by a # prefix. Quest Aerospace tube sizes are simply given in metric (mm). T- prefixes generally indicate Aerotech tube sizes.

Size Outside
Diameter		 Inside
Diameter		 Thickness Notes
T-2 0.246 0.220 0.013
T-2+ 0.281 0.255 0.013 Fits Quest Micro
BT-3, T-3 0.375 0.349 0.013
T-4 0.448 0.432 0.013 Apogee Micro
T-.0464 0.464 0.438 0.013 Oops
T-4+ 0.478 0.452 0.013 Fits over T-4
BT-5 0.541 0.515 0.013
#5 0.543 0.515 0.013
T-5 0.544 0.518 0.013 Estes Mini-A
T-5+ 0.585 0.559 0.013 Fits over T-5
15mm 0.590 0.550 0.020
T-.700, T-30 0.700 0.656 0.022
BT-20,T-20 0.736 0.710 0.013
#7, T-.759 0.759 0.715 0.022
BT-30 0.767 0.725 0.021
T-20+ 0.770 0.744 0.013 Fits over T-20
20mm 0.788 0.752 0.020
BT-40 0.825 0.765 0.013
#8, T-.908 0.908 0.865 0.022
#8F 0.921 0.885 0.018
#085 0.945 0.865 0.040
BT-50, T-50 0.976 0.950 0.013
25mm 0.984 0.944 0.020
T-50MF 0.992 0.950 0.021 foil lined motor
#9 0.998 0.950 0.024
T-50+ 1.010 0.984 0.013 Fits over T-50
BT-51 1.011 0.985 0.013
BT-52 1.014 0.988 0.013
#10, T-1.04 1.040 1.000 0.020
30mm 1.181 1.141 0.020
T-52H 1.210 1.140 0.035 29mm motor
#115 1.220 1.140 0.040
BT-55, T-55 1.325 1.283 0.021
#13 1.340 1.300 0.020
#125 1.340 1.250 0.045
BT-56, T-56 1.346 1.304 0.021
35mm 1.380 1.340 0.020
40mm 1.570 1.530 0.020
#150 1.590 1.500 0.045
T-38mm 1.635 1.525 0.055
BT-60, T-60 1.637 1.595 0.021
#16 1.640 1.600 0.020
#18 1.840 1.800 0.020
#175 1.840 1.750 0.045
T-1.88 1.880 1.800 0.040 Aerotech
50mm 1.970 1.920 0.025
#20, T-2.04 2.040 2.000 0.020
#200 2.080 2.000 0.040
BT-70, T-70 2.217 2.175 0.021
#225 2.340 2.250 0.045
BT-80, T-80 2.600 2.588 0.021
#275 2.840 2.750 0.045
BT-99 3.700 3.668 0.021
BT-100 3.744 3.702 0.021
BT-101, T-101 3.938 3.896 0.021
T-4.476 4.546 4.476 0.035
Comments

Contents Copyright © 2006 Chris Gonnerman. All Rights Reserved.
Last Updated 10/26/2023