09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
146
DEFLECTIONS
11.
For deflection measurements, center control stick for neutral position, move and
hold control stick against stop and measure.
12.
Measurement is taken on top surface of aileron at approximate half span on top
of aileron rib. Deflection angle is in reference to trailing edge of Aileron.
13.
Adjust aileron stops (1/4" Plain Bolts) on Control Stick Torque Tube as required.
Make sure the Aileron Leading Edge is not contacting the Aileron Hinge.
•
Up:
24°
(Tolerance is +2.0
/ -1.0
)
•
Down:
14°
(Tolerance is +2.0
/ -1.0
)
SURFACE CLEARANCE
•
The minimum clearance between aileron and wing tip is
0.13”.
•
The minimum clearance between aileron and flap
is 0.2”.
OPERATIONAL CHECK
14.
Move the controls in the cockpit throughout the full range of deflection. Check for:
•
Correct deflections of control surfaces.
•
Interference of controls, linkages, cables, surfaces with other components.
•
Excessive friction.
•
Secure jam nuts against aileron push rods, then Loctite the jam nut on the
outer threads. Move the control stick to make sure the ailerons travel
smoothly through the full range of motion and are free from play. If binding
is present check jam nuts and rod ends.