RANS S-20 RAVEN
TEXT MANUAL
09/01/2013
08A-2
8.
With the Wing topside up and level, roll out and cut the top layer of fabric
so that it extends approximately 3" on each end of the Wing. Pull as much
of the fabric to the Trailing Edge of the Wing as possible leaving enough
fabric on the Leading Edge to wrap around the Spar.
9.
Trim off the excess fabric leaving enough fabric to wrap around the
Trailing Edge Spar. Save these scraps, they will be used to cover smaller
parts.
10.
Refer to the SuperFlite covering manual and mix up a quantity of
adhesive.
11.
Bond the fabric along the AFT side of the Trailing Edge Spar (about 11/2”
bonding area is enough at this time.
12.
Bond the fabric to the forward face of the Leading Edge Spar (about 2’’
wide at this time). Pull light tension into the fabric as you go.
13.
Bond the fabric around the Tip Bow and the upper Root Rib, pulling in light
tension.
14.
Iron the surface only enough to take out large wrinkles. You do
NOT
want
tension at this time.
15.
Glue down the fabric on top of the Fuel Tank Cover (sheet metal) and the
Leading Edge Wrap (sheet metal). Apply thin glue with a brush through
the fabric surface.
16.
Turn the wing bottom side is up.
17.
Mark the trim line along the fabric perimeter with a soft pencil, size with
thin glue along the trim line and cut using a sharp scissor. Refer to
FIGURE 08A-17
and
08A-17A
.
18.
Glue down the extending fabric around the Leading Edge, Trailing Edge,
Tip Bow, and Root Rib.
19.
Iron out any wrinkles or puckers in the bond area and iron down all edges.
20.
Iron the top side to pre-tension the fabric.
CAUTION: Do not bring the top
skin to final tension until the bottom skin has been pre-tensioned.
21.
With the top fabric pre-tensioned, position the wing bottom side up.
22.
Roll out and cut the bottom layer of fabric.
23.
Following the same procedure as before, bond the bottom fabric to the
Wing Frame and pre-tension. Refer back to
FIGURE 08A-17
and
08A-
17A
for trimming the lower fabric.
24.
Size and cut the fabric around the Lift Strut Attach Plates, and Jury Strut
Bracket.
25.
Thoroughly iron the entire Wing surface to final tension the top and bottom
fabric.
