09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
11-24
10.
Re-adjust as needed and re-tape in place. The sides of the upper Cowl will lap
over the lower Cowl until trimmed.
11.
Mark and trim the upper aft edge of the upper Cowl to allow it to set into the
joggle.
NOTE:
The sides of the Cowl will be marked and trimmed after the upper
Cowl is fit.
12.
Tape forward ends of the Cowlings tightly together, check for proper alignment.
Re-adjust as needed and re-tape in place.
13.
Locate the top center fastener hole per
FIGURE 11K-13/912
. Drill #40 and
Cleco. Locate the bottom fastener holes, drill #40 and Cleco. Mark and trim the
aft edges of the Cowling to fit in the Cowl joggle.
14.
Measure and drill the positions for the aft fasteners #40 and cleco. Refer back to
FIGURE 11K-13/912
.
NOTE:
Removing the small square area where the lower Cowl overlaps
onto the Boot Cowl Strip will allow the upper Cowl to lay flusher with the
Boot Cowl. Refer back to
FIGURE 11K-03-912
.
15.
Apply 2” wide masking tape to the lower Cowling below the joggle. You want
approx 2” of tape below the joggle all the way along the Cowling side. Mark a line
1.5” below the joggle.
16.
Tape the upper Cowling in position and mark 1.5” from the line on the lower
Cowl. This will be placing a line on the upper Cowling directly over the joggles.
17.
The upper Cowling may need to be trimmed again. Everything changes a little
when it settles in the joggle. Sand to final fit.
18.
Measure and drill the positions for the fasteners #40 at the cowl to cowl joggle
and cleco. See
FIGURE 11K-13/912
.
19.
Transfer drill all holes to #11 and cleco.
20.
Final trim all of the openings.
21.
Refer to
FIGURE 11K-21-912.
Mark the opening position for the Oil Check Door
on the upper side of the upper Cowl.
HINT:
A Dremel tool with a reinforced cut-off wheel and small sanding
drum works well.
22.
Position Reinforcement Rings with fastener holes towards aft edge of cowl. Cleco
in place. Center Maintenance Hatch in opening. Align holes for 1/4-Turns and
transfer drill #30 through hinges. Cleco as you drill.
NOTE:
Form the Maintenance Hatch and Reinforcement Ring to better
contour to the upper Cowling if desired.
23.
Rivet 1/4 Turn Receptacles to bottom of Reinforcement ring.
24.
Cleco 1/4 Turn Receptacles through #11 holes to inside of Boot Cowl Strips.
Align and transfer drill #40 though Receptacles. Remove Receptacles.