Bulkheads
Bulkheads form an impenetrable block between two sections of a model rocket--typically, the section with the recovery device, and a payload bay. Bulkheads may be made of balsa wood, plastic, cardboard, or plywood, and are often used as attachment points for a recovery device.
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56mm (BT-70) Bulkhead
Rocketry Works
$1.99These laser cut bulkheads are made from 1/8 inch birch plywood, and sized to fit securely at one end of a 56mm (BT-70) coupler, and inside a BT-70 body tube. Sold as a set of 2 bulkhead plates, one smaller than the other. Each plate comes with 2...RW-BULKHEAD BT-70 PW 3MM$1.99 -
66mm (BT-80) Bulkhead
Rocketry Works
$1.99These laser cut bulkheads are made from 1/8 inch birch plywood, and sized to fit securely at one end of a 66mm (BT-80) coupler, and inside a BT-80 body tube. Sold as a set of 2 bulkhead plates, one smaller than the other. Each plate comes with 2...RW-BULKHEAD BT-80 PW 3MM$1.99