Fins

Fins

Fins guide a rocket once it is moving fast enough for the air moving across the fin surfaces to steer the rocket.  Fins can be made of balsa wood, plywood, or plastic, and can be mounted on the surface of the airframe, or through the wall of the airframe with a tab secured to the motor mount inside the airframe.  Fins can also take the form of tube fins or ring fins, which also provide guidance, although they produce more drag than traditional fins.

  • Snarky Through-the-wall fins fit 29mm motor mount in 56mm (BT-70) tube Snarky surface mount plywood fins

    Snarky Fin Upgrade 1/8 inch Plywood

    Rocketry Works

    $9.99
    These 1/8 inch birch plywood fins and centering rings for the Dynastar Snarky replace the stock balsa fins and centering rings. Options include a choice of 24mm centering rings or 29mm motor mount, surface mount plywood fins to match the stock balsa...
    RW-FIN-SNARKY-PLY
    $9.99
  • Rocketry Works plywood Der Big Red Max upgrade set, including 2 or 3 centering ring options. Compared to the stock multi-part fin assembly requirements shown on the right, the Rocketry Works plywood upgrade set is simple, clean and ready to assemble.

    Der Big Red Max Plywood Fin Upgrade Set of 3

    Rocketry Works

    $14.99
    These 1/8 inch thick plywood replacement fins for the Estes Der Big Red Max kit are a great option to improve your build strength and durability over the stock multi-part balsa fins that can be damaged in transit or during assembly.  Laser cut to...
    RW-FIN-BIG-RED-MAX-PLY-3MM
    $14.99
  • Custom Plywood Fins 1/8 Inch Thick Plywood through the wall fin for 29mm motor tube in BT-80 body tube

    Custom Plywood Fins 1/8 Inch Thick

    Rocketry Works

    $2.60
    Rocketry Works can cut your design into 1/8 inch thick plywood fins for you!  Simply upload your fin pattern, and we can cut your fins to your specifications!    Vector artwork files are best delivered in Lighburn .lbrn or Adobe...
    RW-CUSTOM-FIN-PLY-1-8
    $2.60