With the radio system still on, adjust the R/C link at the throttle
servo until it easily fits onto the output arm when the servo is
positioned at the full rear (usually "low throttle") position. Continue
adjusting the R/C link until smooth full-throttle to low-throttle
transition is established.
NOTE:
If your radio system includes an EPA (End Point
Adjustment) feature, you will be able to very accurately dial-in the
exact amount of servo travel. If your system does not include EPA,
then, you'll have to adjust the total movement of the throttle
pushrod mechanically. This means that you may have to reposition
the R/C links on either one or both of the connections.
For
instance, moving the R/C link in closer to the servo will result in a
little less total movement. To prevent unnecessary battery drain,
it's important to adjust this linkage to eliminate any binding. Also,
understand that final throttle set-up is always done when the
engine is broken-in and running.
TAIL GROUP MOUNTING & FINAL ASSEMBLY:
From the kit contents, locate the two bags containing the
horizontal stabilizer and elevators and the vertical fin and rudder.
You will also need the two remaining factory covered Channeled
Balsa Tail Fairings. For alignment purposes, you will also need the
wing assembly and the two 1/4-20 nylon wing bolts. Remove the
elevator assembly and the hinges from the horizontal stabilizer.
Remove the rudder and its hinges from the vertical fin. Set the
rudder, elevators, and hinges aside for now.
❑
1) Join the wing panels together, using the aluminum main
joiner and the rear aluminum alignment tube. Carefully press the
two panels together at the center.
Mount the wing onto the
fuselage and use the two 1/4-20 nylon wing bolts to secure it in
place (be sure that the two aileron servo leads on the bottom
center of the wing panels are inside the fuselage). Set the airplane
on a flat surface with enough space around it to easily view it from
both the front and rear. Place the horizontal stabilizer (stab) onto
the fuselage at the rear, aligning it with the centerline of the
fuselage. Hold it in this position with a weight, to be sure it is sitting
flat on the fuselage.
Step back, and view the fuselage from the front. The stabilizer
must be uniformly aligned to the wing and fuselage, without tilting
one way or the other.
Carefully square the stabilizer to the
fuselage and wing in top view. This is easiest to do by taking
measurements from the same point on each side of the airplane.
With the stab firmly and correctly in position on the fuselage, use
a pencil to draw light lines on each side of its bottom surface, along
the straight edges of the channeled balsa fairings. Remove the
stab from the fuselage and use a straight edge and sharp hobby
knife to lightly cut away the excess covering from just inside the
pencil marks - do not cut the wood beneath the covering!
Use 5-minute epoxy to glue the stab in place to the fuselage.
Apply glue evenly to the stab saddle at the top rear of the fuselage.
Also, apply glue to the exposed wood on the bottom center of the
stab. Place the stab onto the fuselage, making sure it is centered
in top view as well as in front view. Use weights or pins to hold the
stab in this aligned position until the epoxy cures. Clean off any
excess glue on the bottom of the fuselage/stab joints with alcohol.
❑
2) The vertical fin is now glued in place onto the top of the stab
and fuselage. First, trial-fit the fin in place. Check the fit of its
bottom surface, where it contacts the stab and fuselage. It should
contact these surfaces from front to rear. If necessary, trim or sand
the bottom of the fin for the best fit. Also, make sure that the rear
edge of the fin is in alignment with the rear bottom edge of the
fuselage. When you're satisfied, hold the fin in place to the stab
and use a sharp pencil to trace around its forward bottom fairing,
where it extends forward onto the top rear fuselage. Remove the
fin and use a sharp hobby knife to remove the covering from just
inside of the pencil outline.
Using 5-minute epoxy, apply glue to the bottom of the vertical fin,
including the tab that fits into the top of the stab. Press the fin in
place into the stab slot and firmly onto the stab and fuselage. Wipe
off any excess glue with alcohol. Use strips of tape and/or pins to
align the fin at 90
O
to the stabilizer. View the airplane from the
front, making sure the fin is perfectly upright and square with the
stab, wing, and fuselage, without tilting one way or the other. With
the fin securely in this position, allow the glue to cure. When the
epoxy has set, remove the wing from the fuselage.
❑
3) The two remaining pre-covered balsa tail fairings are now
23
X
X
X = X
X
X
90
90
O
O
