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Section 8: Installing the Rudder, Control Horns, and Linkages
Parts Needed
Rudder
Fuselage
Not Included
Control Horns (2) (ROCO1B)
4-40 Ball Links (2) (ROC87)
1/2" 4-40 Pro-Links (2) (HAN3556)
Step 1. Mark the position for the rudder control horn with a felt-
tipped pen. The correct location is 3/4" up from the bottom of the
rudder and 1/4" rearward from the edge of the rudder bevel.
Step 2. Using a 5/32" drill bit and hand drill, carefully drill a
5/32" hole through the rudder perpendicular (90°) to the rudder
centerline at the marked position. Be especially careful when
penetrating through the backside of the rudder.
22
/
"
3
4
/
"
1
4
Tools and Adhesives Needed
Drill
Drill Bit: 5/32"
Phillips screwdriver
Straight screwdriver
8-32 Tap (DUB363)
30-minute epoxy
Rubbing alcohol
Paper towels
Ruler
Step 3. Using an 8-32 tap, thread the hole you just drilled in
the rudder.
Step 4. Mix a small amount of 30-minute epoxy and lightly coat
the center of the threaded portion of the 4" long 8-32 bolt
included with the Rocket City Swivel Horn package. Thread the
bolt into the tapped hole in the rudder until 1" of thread is
exposed on the opposite side.
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