09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
43
VERTICAL STABILIZER
Refer to section
3
of parts and figure drawings.
If installing the Optional
– Taildragger Pull Handle it is advisable to do so before final
riveting the Vertical Stabilizer Side Skins.
VERTICAL STABILIZER ASSEMBLY
1.
Lay ribs on a flat table with the flanges up. Use fluting pliers to straighten the ribs
so they lay flat on the table.
2.
Cleco the frame assembly together as shown in the PARTS MANUAL
DRAWING.
3.
Press the bronze flange bushings into the hinges before assembly. See part
drawing for orientation.
Ream the bushings to #11, if a 3/16” bolt will not insert
into the bushings.
4.
Rivet the spars, hinges, and ribs using appropriate hardware. Refer to
FIGURE
003-03
for a Spar riveting schedule.
5.
Cleco the side skins to the frame assembly. Do
NOT
cleco to the FWD Spar at
this time.
6.
Use an edge forming tool to form the aft edges of the leading edge skin.
7.
Cleco the leading edge skin to the frame assembly overlapping the side skins.
8.
Check the vertical stab for twist by placing clecos in the holes on the end ribs and
using a straight edge and digital level to compare. If needed, use boards and
weights or straps to fix the assembly and correct any error in twist.
9.
Rivet one side.
10.
Flip the assembly and check again for twist before riveting the second side.
OPTIONAL - TAILDRAGGER PULL HANDLE ASSEMBLY
•
Optional Pull Handle Assembly may be installed during or after Vertical
Stabilizer Assembly is complete.
1.
Refer to
SECTION 003
and collect all the parts shown on the part pages for the
Pull Handle.
2.
Separate the Pull Handle Doubler into 2 pieces.
3.
Cleco doublers to each side of the Vertical Stab as shown on the parts page.
Transfer drill all holes to #30.
4.
Find the center of the large hole in the doubler and drill the Vertical Stab Side
Skin to 3
/4” to match the doubler.
Hint: A stepped drill bit will help.
