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BT-20 Model Rocket Body Tube
The BT-20 model rocket body tube is the second smallest of the body tubes.
- Inside Dimension: 0.710"
- Outside Dimension: 0.736"
The inside diameter of the body tube is the same dimension as the outside diameter of a A-class, B-class, or C-class model rocket engine, so that this body tube can be used as an engine mount for these engines.
