a) As before, slip a copper swage tube onto the loose cable end
at the rear of the fuselage, followed by one of the rigging couplers.
Route the loose cable end back through the copper swage.
Connect the R/C link to the outermost hole in a left control horn.
With the fuselage laying on its right side, hold the base of the
control horn against the rudder with just a little tension on the
cable. Move the control horn base up or down on the side of the
rudder to center the cable within its exit slot. With the base of the
control horn aligned with the leading edge bevel of the rudder, use
a marking pen to mark its four mounting hole locations.
b) Use an electric drill and a .043" (#57 index drill) to drill four guide
holes for the control horn mounting screws. Use four T2.6 x 16mm
Phillips head screws to mount the control horn in place to the
rudder. As before, remove the screws and reinforce the threads in
each hole with a small drop of thin CA, using a fine applicator tip.
Remount the horn and firmly tighten the four screws.
c) Turn the fuselage over on its left side.
Repeat the coupler
rigging attachment instruction in a) above. Locate and mark the
right control horn mounting screw locations onto the rudder. Drill
the required four guide holes, as described above and mount the
control horn in place to the rudder.
7) With the two rigging coupler assemblies still in place on the
rudder control horns and the rudder still taped in neutral to the fin,
the cables are now tensioned and locked in place with the copper
swaging tubes. It is important that a sufficient amount of tension
is placed equally on each cable - not tight, not loose.
Small
adjustments in tension can be made with the R/C links.
8) Use the transmitter and receiver to test the action of the rudder
servo and pull-pull set-up. Make sure the transmitter trims are in
neutral. Adjust the output arm on the servo as needed and then
adjust the clevises on the rigging coupler connections to
completely center everything.
Receiver & Battery Pack Installation:
The receiver(s) and battery pack(s) were mounted on the built in
radio tray in the fuselage of our Edge 540T models. We made
simple mounting platforms for our battery packs, using lite-ply. We
did not mount these pack mounts until after we had conducted our
Center of Gravity routine, described later in this manual.
We mounted our On/Off switch - the Maxx Products units
mentioned earlier - assemblies for the airborne radio system on
the fuselage side, just below the canopy hatch.
We routed our elevator servo extensions along the fuselage sides
- through the laser-cut holes on each side of the formers under the
foam turtle deck - to the receiver. All of our cables were organized
and held in place using 4" cable ties.
in place. Bend the excess cable end up at a 90
O
angle to the
swage tube.
4) Feed one of the cable ends, rigging coupler end first, through
one of the exit slots at the rear of the fuselage. Use a piece of tape
at the rear of the fuselage exit slot to hold the loose end of the
cable in place. Reach back into the fuselage and get your hand on
the rigging coupler and pull it forward toward the cable.
Use
another piece of tape to hold the rigging coupler temporarily in
place to the servo tray. Feed the second pull-pull cable through the
opposite fuselage exit slot in the same manner, temporarily taping
both ends.
Carefully note that these two cables will cross each other when
they are installed to the servo output arm. This means that the left
cable will exit the right slot at the rear of the fuselage and the right
cable will exit the left rear fuselage slot. With the cables crossing,
they are better positioned to exit the fuselage cleanly.
5) Maintaining the crossed cables relationship, attach the clevis
ends of the rigging couplers to each end of the rudder output arm.
Put the output arm in place on the servo, with its arms at 90
O
to the
servo body.
6) Use a piece of masking tape to secure the rudder in neutral
position with the fin. The rudder control horns are now mounted in
place. We will start by working on the left side of the fuselage and
rudder.
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