Snarky Fin Upgrade 1/8 inch Plywood

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 fin shape, or through-the-wall plywood fins for increased strength. Optionally, you may choose an 18 inch pre-slotted airframe tube to save yourself the trouble of slotting the stock tube to fit the through-the-wall fins.  The through-the-wall fin option includes fin tabs only for the 3 aft fins; the forward wings nest into the longitudinal joint between airframe tubes.  The tricky longitudinal airframe tube cut is still on you.