TDM Models
Electric Power R/C Aircraft Plans

 

Ilyushin Il-2M Sturmovik
A scale electric powered R/C model
Original Design and Plans and Short Kits

Wing Construction Page II

The wing design is for the early (1939-1943) IL2 and Series 3 aircraft. The wing construction is fully detailed on full size 1:1 scale CAD drawings. Wingspan of this model is 34" and wing area is 187 sq. in.  

This photo shows the two wing panels at the root rib. The root ribs are angled using a small dihedral gauge to allow for the 1 1/8" dihedral that will be incorporated into the wing when the two panels are joined. The aileron actuator rods and brass tube bearings can be seen here. Use your favorite aileron connector hardware or flatten a brass tube, drill 1/16" clevis holes and solder the tube to the cut-off end of the music wire.
Here is an overall view of the wing panels. The top sheet is shown above. The top sheeting is laser cut and edge glued to form a single top sheet.
A 1/8" washout (trailing edge of tip rib elevated) is incorporated into the wing panels by placing a "washout shim" under the trailing edge. The shim tapers from 1/8" thick at the tip rib to zero at the root rib. The top skin is marked in the locations where it will contact the lower wing panel.
Place the "washout shim" under the trailing edge. Apply contact cement to the surfaces of the lower wing skin (upper curve of ribs, sub-leading edge, trailing edge, aileron spars) and the marked locations on the inside of the top sheet. Apply the top sheet to the lower assembly starting at the trailing edge. "Roll" the top sheet into place on the lower assembly being careful to align it to the lower assembly. Place a couple old magazines on top of the panels and weight it down while the assembly cures.
Add the 1/8" thick leading edge to the front of the wing panel
Laminate the balsa tip block and glue them to the tip rib with the bottom surfice of the wing panel flat on the building board.

| Wing Construction Part 1 | Wing Construction Part 3 |