Readjust for trueness along both sides. Pinch, glue, and pin the cross-members at the front (station 1). Check that the nose is square, and if it isn’t, “persuade” it into position with a heavy, upright object such as a brick or a full bottle. Daub a second coat of glue onto these front cross-members (they’re under quite a bit of stress), and allow to dry 1 hour. Spray down the entire fuselage and let it dry overnight, to further safeguard against the dreaded “banana” fuselage.

Glue 3/16” sheeting above and below the nose. The top center piece will be the equipment bay hatch, so just tack-glue this section. Add top and bottom “slivers” between stations 8 and 9, as shown in the fuselage top view. Sand the front of station 1 flat, and glue on the nose block. Laminate and glue in the tow hook mounting block on the fuselage centerline aft of station 3. Let dry overnight.

Shape and sand the completed fuselage. You can use the pen trick in Step 4 to shape the nose block. Lightly round the edges of the fuselage, except where the wing and tail will join.

You can build both wings at the same time if you have room on your building board. Be certain to build a right wing and a left wing, not two of the same!

Pin the 1” x ¼” triangular trailing edge sections onto the plan, cutting and fitting the supporting pieces that curve forward at each end. Carefully mark and cut the 1/16” x 1/8” notches where wing ribs R3–R15 fit into the trailing edge. A knife or razor saw will work, but a loose hacksaw blade is better.

Re-pin the trailing edges to the plan in place. Fit, glue, and pin down the supports, W1 and W2, and the spruce spar, sanding to match the plan if necessary.

Add (cut, fit, glue, and pin) the bottom center sheet piece that lies aft of the spar and spans ribs R1 and R2 underneath. Add wing ribs R2 through R15. Let the glue set for 30 minutes, then fit and glue the hard balsa  1/4” square leading edge into the ribs’ triangular front notches. Pin and let dry overnight.

The ribs’ notches may need some sanding, but never force them into place!

Cut the wings’ curved tips using the Step 4 method, transferring the curve to the flat undersides. Sand the tips smooth and round.

Sand spanwise the leading edge to a uniform semicircular cross-section, as shown on the plan.

A lot of aerodynamic activity occurs at the wingtips, so pay attention and do clean work.