More chipmunk progress

Shaping fuselage sides.  Outlines are printed on the 1/8 hard balsa sides.   1/16 ply was CA'd after drilling holes.  Square stock glued on the top and bottom and stack sanded to match them up.   

The kit was short on engine stick, so I ripped some hard maple from my stock.  I added an engine crutch, I put it in all models now.  It makes it easy to locate and drill mounting holes.  I used transfer punches to locate the mounting holes and drilled them accurately. 

One the crutch is done, the sides were popped in a jig.  The crutch was glued in upside down.  

Sig supplies a molded set of flap and elevator horns.  I cut up an old one, and will not use it.  I need to a set.  The horns are flexy and and the little kink in the horn wire isn't enough to prevent rotation.