Brief Description: Countersink Fiberglass Wing Tip for RIb
Next I removed the wing tip and did the countersinking on the workbench using the microstop countersink without the cage. I left the wing tip rib in place to help guide the bit. Then I deburred the wing tip rib and jumped back to the wing and dimpled the last couple of holes on the wing skin using Avery's special dimple dies that use a small bolt for the clamping pressure. I had to use these because of how close the holes were to the aileron bracket which interfered with the normal squeezers.
Using the microstop countersink without the cage and with the rib clecoed in place to countersink
Left wing tip rib deburred
Last couple of dimples completed with Avery's special dimple dies
