15
SBACH
Instruction Manual
LATERAL BALANCE
After you have balanced a plane on the C.G. You
should laterally balance it. Doing this will help the
airplane track straighter.
5. Turn the airplane upside down. Attach one loop
of heavy string to the engine crankshaft and
one to the tail wheel wire. With the wings level,
carefully lift the airplane by the string. This may
require two people to make it easier.
6. If one side of the wing fall, that side is heavier
than the opposite. Add small amounts of lead
weight to the bottom side of the lighter wing
half's wing tip. Follow this procedure until the
wing stays level when you lift the airplane.
3d sERVOS
The large control throws require servos with
great centering. The digital servos are second to
none in this department. Digital servos such as
the Futaba BLS 351 should be used on all
control surfaces of this airplane for optimum
performance.
Aileron Control
15mm
15mm
Rudder Control
40mm
40mm
Elevator Control
15mm
15mm
CONTROL THROWS
1. We highly recommend setting up a plane using
the control throws listed.
2. The control throws should be measured at the
widest point of each control surface.
3. Check to be sure the control surfaces move in the
correct directions.
Ailerons : 15mm up 15mm down
Elevator : 15mm up 15mm down
Rudder : 40mm right 40mm left
• LOW RATE
3-D PERFORMANCE SETTINGS
The SBACH size 120 will perform 3-D aerobatics
easily if you use the largest engines
recommended within the engine range. If you
setup your airplane to do 3D maneuvers, you
will need to be throttle conscious; that is,
never apply full throttle on straight and level
flying or in dives to prevent flutter.
Ailerons : 45mm up 45mm down
Elevator : 40mm up 40mm down
Rudder : 45mm right 45mm left
HIGH RATE (FOR 3D)
!
