Another thing I forgot about was wing retention. I could have done this with the wing covered but this is much better. I drilled a wood block in the drill press to act as a drill jig. This was used to drill through the spar, wing tube and socket. I turned a 4-40 stainless screw so that a 3/16" brass tube slip over the head and act as a guide. The sharpen brass tube was used to counter bore the hole to recess the screw heads.
There's no need to remove the hatch at the field, slip the wing on, plug in the servo, and install the screw.
The wings are now re-sanded and ready for covering again!
Last edited by Tony Hallo; 12-28-2014 at 08:01 AM.