Great Planes PT-60 Kit - GPMA0119 - Manual (Page 40)

DUAL RATE TRANSMITTER
"Dual Rate" is a feature on some radios which allows
you to switch the control surface throws in flight This lets
you change the responsiveness of your model with
regard to the maneuvers you are doing
The following throws* are for a transmitter equipped for
Dual Rate servo control.
D 1 "Eyeball" the side of the fuselage from 6-10 feet
away Adjust the height of the nose by raising or lowering
the nosegear wire so that your model will sit nearly level, as
shown in the Good Stance sketch
May be difficult to
rotate on takeoff.
ELEVATOR:
RUDDER:
AILERONS:
(High Rate) 5/8" up
(Low Rate) 3/8" up 5/8" down
3/8" down
Sticks to the
runway after
landing.
3/4" right
(High Rate)
(Low Rate)
3/4" left
1/2" up
3/8" up
3/8" down
1/4" down
*The elevator and rudder throw can be adjusted as
shown below.
Will lift off easily
on takeoff.
Lands predictably
and stays put on
runway.
NOTE: The balance and surface throws for this
aircraft have been extensively tested. We are
confident that they represent the settings at which
the PT-60 flies best. Please set up your aircraft to the
specifications listed above. If, after a few flights, you
would like to adjust the throws to suit your taste,
that's fine. Remember, "more is not better."
More
movement
Tends to lift-off
automatically on NOSE TOO HIGH
takeoff.
May bounce and
become airborne
during landing.
D 2 Once the correct ground stance is established, grind
or file a 'flat spot on the nosegear wire to lock the steering
arm in position (See below.)
Moving the clevis outward on the servo arm
results in more pushrod movement.
Moving the clevis inward on the control horn
results in more throw
NOSE GEAR FLAT SPOT
When everything is aligned and the model sits
correctly, tighten the 6-32 x 3/16" machine screw on the
steering arm tight enough to leave a mark on the nose
gear wire Remove the nose gear from the engine mount
and remove the steering arm assembly
As mentioned, a flat spot or "flat" is required on the
nosegear wire This flat allows the nose gear steering
arm to positively lock onto the nose gear wire, providing
a "no-slip" steering linkage
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