Control Throws And Aircraft Setup Information - Model Tech Sukhoi SU-31 Assembly Instructions Manual

Control throWS and airCraft Setup inforMation

We recommend initially setting up the airplane using the Test Flying/Sport Flying control throws. These control throws are suggested
for initial test flying and general sport flying because they will allow the airplane to fly smoother and make it easier to control. For
3D flying, use the 3D Flying control throws, but only AFTER you've become very familiar with the flight characteristics of the airplane
using the Test Flying/Sport Flying control throws and only after setting up the airplane as described in this section.
test flying/Sport flying
ailerons: 1-1/4" (32mm) up and down
elevator: 1-7/8" (48mm) up and down
rudder: 3" (76mm) right and left
the Control throWS are MeaSured FroM the WIdeSt PoInt oF the Control SurFaCeS
Exponential softens the response of the control surfaces around neutral stick. This makes the airplane easier to control while using
such large control throws. The Exponential values shown are given as a percent. Please note that different brands of radio control
systems may call for + or - Expo. Please check your transmitter's owners manual for more info.
test flying/Sport flying
ailerons: 20%
elevator: 20%
rudder: 20%
If you don't maintain the proper mechanical advantage on the control surfaces, control surface flutter may result, which can cause
your airplane to lose control and crash. Mechanical advantage refers to the distance that the pushrod attachment points (pivot points)
are from the servos and the control surfaces.
Keeping the pushrods as close to the center of the servo arms as possible will increase the servo's resolution. What this means
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is that when you move the control sticks on the transmitter, the servo arms will have to travel farther to achieve the desired amount
of control input. This makes the resolution higher, therefore causing the control surface deflection to be more precise. We don't
recommend moving the pushrods any farther away from the center of the servo arms than absolutely necessary.
Keeping the pushrods as far away as possible from the control surfaces is better than moving them closer. The mechanical advantage
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is greatly reduced the closer the pushrods are moved toward the control surfaces. We don't recommend moving the pushrods any
closer to the control surfaces than absolutely necessary.
it is very important that you understand throttle management. Basically, this means no full throttle dives. Full throttle dives
should be avoided so as not to cause control surface flutter and/or airframe failure. When the nose of the airplane drops,
decrease the throttle, just as in full-scale aerobatics.
PleaSe See the neXt FeW PageS For InForMatIon on
LATERAL BALANCING, A PREFLIGhT ChECK ANd SAFETY LIST,
A TRIM ChART ANd A REPLACEMENT PARTS LIST
SettinG the Control throWS
SettinG the eXponential
Control SurfaCe linkaGeS
throttle ManaGeMent
Page 
3d flying
ailerons: 2-1/2" (64mm)
elevator: 3-1/2" (89mm)
rudder: 5" (127mm) right and left
3d flying
ailerons: 45%
elevator: 45%
rudder: 45%
up and down
up and down