Add W15 to the trailing edge of the wing making sure not to install it upside down.

Add the vertical grain 3/32" balsa shear webs to the front side of the main spars from R6 to R12. Be careful to prevent these from standing proud of the main spars or they will conflict with the wing sheeting later.

Add the R7b sub-rib as well as the 1/8" x 1/4" hardwood stringer above the wheel wells.

Add the W10 sub-leading edge piece. I wet W10 and allowed it to dry while weighted in position in order to pre-bend it prior to actually attaching it to the ribs.

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