Fincan for Terrier Malemute sounding rocket.

Sized for Estes Pro Series II 3" body tube, or 1:5.2 scale. Three inch body tube fits over the shoulder, BT-80 body tube fits inside the boat tail for installing a typical motor mount (I plan on 29mm).

The fins include a channels for 2x10mm carbon fiber slats for stiffening - but may not need it. The root is quite wide and the fins seem stiff enough as is.