3)
Locate hardwood blocks pre installed in the elevators. Drill and tap block for control horn locations
for a 8/32 bolt. Install the control horns so your linkage will be 90 degrees to the servo arm. We
recommend using the Nelson control horn assembly #RCL70.
DO NOT counter sink bolt head.
Use flush mount bolt
4)
When setting up the servo linkage we recommend using 4-40 rod with a silver solder clevis. It is very
important to have all control linkages 90 degrees to the control surface and servo arm. If more throw
is required then the silver solder clevis will allow, we recommend using a Dubro swivel ball link at
the servo arm for more movement.
5)
It is best to have the linkage as far in on the servo arm as possible and as far away from the control
surface as possible. If you are setting up the plane for 3D style flying. We recommend using larger
after market servo arms. It is important not to be closer then 3/4” from the control surface with your
control horn. If you get to close to the control surface you may develop flutter.
Special note
:
Remember to center all servos prior to connecting linkages to servo. This will eliminate any binding
when the radio is turned on.
6)
Slide aluminum tube through fuse and center tube in fuse. Secure one end of tube in fuse so tube
cannot move. Slide one stab panel onto tube and push tight against fuse.
TAP FOR
4-40
BOLT
MEASURE
EQUAL
DISTANCE
Retainer dowel
location is close
to tip end of
aluminum tube
7)
Locate the hardwood retainer dowel for the 4-40 stab retainer bolt, located on the bottom side of each
stab. Drill pilot hole through hardwood dowel and into aluminum tube. Then, drill and tap retainer
dowel, aluminum tube and dowel inside tube for 4-40 bolt. Secure stab to tube with 4-40 bolt, then
slide other stab onto tube and repeat retainer bolt installation. Be certain both stabs are tight against
fuse.
8)
Leaving the aluminum tube in one stab panel, with stab retainer bolt secured, at all times will enable
you to always find the tapped hole for the bolt.
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