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Model Rocket Body Tubes
Model Rocket Body Tubes
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The following information details the Estes body tube sizes. 

Nearly all matching Estes parts have the same series description # and are interchangeable. For instance, a body tube BT-20 will mate with a nose cone NC-20. A transition adapter TA-2060 will adapt a BT-20 to a BT-60. A 2050 centering ring will center a BT-20 in a BT-50.

SIZE INSIDE DIM.
mm/in
OUTSIDE DIM
mm/in
LENGTH
cm/in

 

BT-5

13.2/.518

13.8/.544

45.7/18.0

 

BT-20

18.0/.710

18.7/.736

45.7/18.0

BT-50

24.1/.950

24.8/.976

45.7/18.0

 

BT-55

32.6/1.283

33.7/1.325

45.7/18.0

BT-56

33.1/1.304

34.2/1.346

45.7/18.0

BT-60

40.5/1.595

41.6/1.637

45.7/18.0

BT-80

65.7/2.588

65.7/2.60

36.1/14.2

Body tubes are made of spiral wound paper. Use tube couplers to connect tubes of the same diameter. Use transition adapters to transition from one tube size to another.


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