: Build Log
View Single Post
Jul 04, 2011
, 06:50 AM
Father of Fr3aK, DLG Pilot
USA, OH, Worthington
Joined May 2002
Next steps: Once you have the forward bolt carrier epoxied into the fuselage, it's time to trim it down. I use a dremel cutoff wheel and cut it about 1-2mm above the wing seat. Use a piece of masking tape on either side to protect the fuse. Once it's cut off, you can then use a flat file to take it down to about a mm proud of the fuse. At this point you can mount the wing using only the forward bolt and align the TE of the wing with the center of the boom. Use string from the tips to the aft end of the boom to square everything up if you wish. Once you have things aligned, tape the TE of the wing in place and drill a pilot hole for the aft bolt using the wing as a guide. Now you can enlarge the hole with the correct size bit and repeat the process to epoxy in and trim the rear bolt block.
Remember now as you mount the wing for the first time that the wing is molded with reflex. The aft section of the wing between the flapperons is split at the root and "hinged" so that when you put the aft bolt in place, it will gently pull the TE down into cruise position. A little epoxy in the "hinge" line and between the root halves at the TE will solidify everything.
View all Images in thread
Filing the aluminum bolt carrier smooth
Finished. It's okay if it remains a mm or so proud
Adding the wing using just the front bolt. Please don't ask about the blue ooze on the front of the table. It's silicone left over from an experiment gone bad.
Rear bolt hole predrilled in the wing
TE molded position (wing) vs cruise camber position (fuse)
Drilling the aft hole in the fuse