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RANS S-7S COURIER
S-7S WING – RIB & SHEET METAL INSTALLATION
WING RIB ASSEMBLY
NOTE: LORD brand FUSOR 108B/109B Adhesive is recommended for
bonding the sheet metal wraps to the FWD & AFT wing spars. Leading Edge,
Root, and Tip Wraps are riveted with 1/8" Stainless Steel Flush rivets. A
suitable 1/8" Dimpling Tool and Counter Sink will be required. Aircraft Spruce
has an inexpensive 1/8" Pop Grip Dimpler.
IMPORTANT: Wings are mirror assemblies, repeat the procedures described
for one to both, unless otherwise specified.
A corrosion protection coating is recommended between the Ribs and Rib
Clips.
1.
Select the necessary parts as shown in the parts drawing. Refer to
FIGURE 05C-01 for Rib location and position numbering.
2.
The ribs are pre-pressed aluminum. The forming process leaves the ribs
slightly bowed. IMPORTANT: Lay the ribs, flange side up, on a flat
table. Use "Fluting Pliers" on the depressed areas to take the curvature
out of the ribs. Flip the rib over and check that flange surface touches
table top evenly at all locations. Do this for all ribs.
3.
Separate into Right Hand & Left Hand ribs.
4.
The open flange side of the ribs will face toward the wing root. The
exception is the root rib (#1) which will face the tip.
5.
Each wing will have a root and tip rib, which are different from Ribs #2
thru #11.
TEXT MANUAL
05/01/2017
05C-1
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