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iv.
where the end of the line is looped back through the crimp tube for a third and final
time.
v.
Pull the final loop close to the tube to tighten the linkage, then squeeze the tube with
a pair of pliers to crimp it together permanently
Initial line length adjustment is done by pulling the line taught (after the other end is
connected to the servo horn) then crushing the crimp tube flat with a pair of pliers to keep the
line from moving further. (For an example of a crimped control line, see the pre-tied rudder
control lines where they connect to the servo horn.) After crimping, excess control line can
be clipped off at the end of the crimp tube. Fine-tuning of control-line length is accomplished
by removing the clevis from the control horn and rotating it in or out over the threaded brass
pullrod. When neutral deflection is achieved with the radio on at neutral trim, apply thread-
lock to the clevis and brass rod.
Elevator Control Lines
a) The two pre-tied snap-hooks that each pull two lines control the elevators. Using the
rearward mounted servo, install the elevator line snap hooks to the outermost holes on
opposite ends of the servo arm. It is easier to attach the snap-hooks when the arm is
outside the airframe (and off the servo). As long as you can reverse the direction of your
servos later, it doesn’t matter which arm gets the “up” elevator hook.
b) Attach the servo arm to the centered servo so that the arms point to the sides of the
fuselage. Block both arms from movement for the purpose of line connection.
c) Place sturdy balsa strips across the H Stab and Elevators then clamp using plastic or
rubber tipped light duty clamps.
d) Prepare the elevator control lines per the control-line guidelines above.
e) Tighten each of the lower elevator lines then crimp the tube over the line.
f) Remove clamps and balsa from the elevators. Remove the shims or blocks holding the
servo arm.
©
2008 Maxford USA www.maxfordusa.com
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