Astrobee D Fin Unit BT50 for 18mm motors

Based from original engineering drawings by Aerojet, this scales down replica fin unit of the real fin/motor assembly is a one piece design of exactly the same design specifications as with the 'hawk series of fin units. This subject in recent times has increased in popularity in larger scales so I hope everyone enjoys this offering in my scale series line-up. Like my other fin units in the 'hawk series, this is for BT50 based body tube designed for use for use with 18 mm motors. It has centering rings and engine hook notch built-in. I recommend longer engine mount tube and additional centering ring for support. Beyond this, it is the end users responsibility for the design, construction , safety and stability of any scratch-built rocket. Please use with discretion.