Plywood Trapezoidal Fins TTW fits 29mm in BT-70 (Set of 3)

Save yourself the trouble of cutting your own plywood fins with thee sturdy through-the-wall (TTW) 1/8 inch thick laser cut plywood fins. The trapezoidal shape fins resist breakage on landing better than any other type of fin, since they are tucked up above the nozzle end of the landing rocket, so the spent motor nozzle bears the brunt of the landing force. Strong plywood construction and TTW design ensures that you spend more of  your flight time flying, and less time repairing broken fins. TTW fin design relies on fin tabs that anchor directly to the airframe tube and also the motor tube through slits at the aft end of the airframe tube, ensuring superior strength and straight alignment, because the fins are glued to both the airframe tube and the motor tube. 3 fins per set.