l) Mounting the Rudder Wings to the Rudder
Before bonding the rudder hinges, they must be roughened with sandpaper. To prevent sticking together of the rudder hinge joints, protect them
with a drop of oil.
Holes for the rudder hinges are already pre-drilled in the rudder and rudder fin. Plug the rudder hinges into the rudder and try plugging it in dry as a test. Check
the gap width, mobility and maximum rudder deflections (also see chapter 9 c, setting of the rudder deflections). Perform any correction that may be required.
When everything matches, the rudder hinges can be glued to the rudder fin first and, after drying, to the rudder, with 30 minute epoxy resin. Observe a straight
line of the rudder hinges. Excess adhesive must be removed at once.
m) Mounting the Rudder Horns to the Rudder
Sketch the installation site of the rudder horn at the rudder measured in
a straight line from the fuselage opening of the linkage cables. Add
10 mm from the rudder edge.
Drill the corresponding hole with a matching drill. The rudder horns
now can be installed so that they both have the same distance to the
rudder.
Then install the aluminium linkage lever (figure 3, item 1) with thread-
cutting screws 1.6 x 12 mm. Observe symmetrical alignment.
The elevator in the rudder horn area is reinforced with
hard wood. To prevent breaking out of the drilled holes,
slowly drill in at a right angle and with a hard wood base
as a counterbearing. For best results, you should drill with
0.1 mm below the size.
n) Mounting the Rudder Servos with Linkage
Install the rudder servo on the servo board (fig. 4, item 1) and apply the
servo rudder horn at an angle of 90° to the servo in neutral position.
Create a cable linkage to the rudder with the material from the
construction kit. Observe tolerance-free linkage and a tight fit of the
crushing eyelets.
To be safe, tie a double bow, additionally secure the crushed rope with
instant adhesive and then apply a shrink hose to everything.
The cables should be applied cross-wise. Thus, best exit at the tail is
warranted. The two cables also lock against each other and thus ensure
best control of the rudder.
Figure 3
Figure 4
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