back to index 4. Joining Wing Halves 20. Set covered wing halves onto flat work surface, bottom side down. You can use either 5-minute epoxy or contact cement to glue the wing halves together. If you happened to spray enough adhesive onto the roots during the covering process, you still may be able to stick the halves together using the spray adhesive as a contact cement. Slide the wing halves close together, but not touching. Make sure antenna is underneath wing so that it can be accessed from the bottom. If you choose not to use contact cement, spread mixed epoxy onto one wing half. While carefully aligning them, slide the wing halves together until they touch. If you are using 5-min epoxy, it will be necessary to hold the wing halves in position until the glue cures, while blocking up one wing by 30-35mm to achieve proper dihedral. If you are using contact cement, such as Clearco 877, Southern Sorghum, or Weldwood Original, clamping is not required; simply stick the wing halves together and raise one half to the proper dihedral angle to close the gap.   21. Locate two 70mm long flat carbon wing joiners. Using a sharp hobby knife and straight edge, cut a 5mm deep, 70mm long slit at the center of the wing, just ahead of the spars (see plans). You will have to cut through the tape - this is OK. Make a slit on both the top and bottom of wing. Press carbon joiners into slots until they disappear below surface of wing.     22. After pressing joiners into slot, check dihedral angle to verify that it has not changed. If it has, gently bend the wing until the proper dihedral is achieved. Press CA glue nozzle firmly against joiner slots and drip glue, allowing it to wick down into slots and around the joiner. Holding the wing at an angle allows the thin CA to flow into the slot. 23. After CA glue cures, place a narrow strip of tape on the top and bottom of wing, directly over the center wing joint.   5. Cutting Hole for Servos All text, images and other content © 2003 Richter R/C. All rights reserved.