Friday, August 22, 2014

Section 18 Complete Build Time: 601 hrs

Finished with the flaperons - just crossed 600 hours. I figure I'm about half way now. I get to pull down the last parts and start on the fuselage.
New batch of parts deberred, primed and ready for assembly.

Spars assembled and ready for skins

Checking to make sure the skins lay flat against the ribs.

Spent a long time with the first skin working it, thinking about it and checking it which required quite a few clecos on each test.

Still not enough bend. The directions say make sure they are flat against the ribs. VansAirForce says this could cause stick grab and I assume it's from uneven air flow.

After trying to gently work towards the right amount of bend I ended up cleco the edges and flattening it by hand.

Satisfied at this point. If it helps anyone the right bend seemed to be about 3/4 to 1/2 inch wider than the spar. If it fits tight against the spar there will be cupping between the ribs. Any higher would bow. I went for slight oil canning between the ribs and I think that's the best one can do. Won't know any more about this until it flies.

Left side done. This was an 11 hour day. I thought about calling it quits for the day but pushed on until 8PM and finished skinning them both.

On to the 3rd and 4th kits.