Couplers
You'll need a coupler when you need to connect two body tubes end to end. With a outside diameter slightly less than the inside diameter of a body tube, couplers fit snugly inside body tubes to provide strength to the joint betweeen the tubes. With glue to secure them the joint is permanent, but without glue on one of the sides of the joint, you can create a separation point in your airframe for deploying the recovery device. You can add a bulkhead to prevent ejection gasses from getting into a payload bay.
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Coupler for BT-80 Body Tube
Rocketry Works
$1.29Rocketry Works' BT-80 coupler fits smoothly inside the BT-80 airframe tube or the BT-80 slotted airframe tube, allowing you to join two sections of tube as a bulkhead or a coupler. The 4 inch length gives plenty of overlap for a secure and straight joint...RW-CT-80-4IN$1.29 -
Coupler for BT-70 Body Tube
Rocketry Works
$1.19Rocketry Works' BT-70 coupler fits smoothly inside the BT-70 airframe tube or the BT-70 slotted airframe tube, allowing you to join two sections of tube as a bulkhead or a coupler. The 4 inch length gives plenty of overlap for a secure and straight joint...RW-CT-70-4IN$1.19 -
Out of Stock
Coupler for 29mm Body Tube
Rocketry Works
$0.69Rocketry Works' 29mm coupler fits smoothly inside the 29mm airframe tubes, allowing you to join two sections of tube as a bulkhead or a coupler. The 2.5 inch length gives plenty of overlap for a secure and straight joint. Some light sanding may be needed...RW-CT-29MM-2.5IN$0.69