AERMACCHI MB-339
37
PRINTING & CONSTRUCTION MANUAL
© PLANEPRINT
EN
EXPO SETTING
Aileron 30 %
Elevator 30 %
Rudder 0 %
TRANSMITTER CONFIGURATION
1. Select empty (Acro) model
2. Wing type: 2 ailerons
3. Reversing the direction of servo
as required (see control function)
4. Servo adjustment all: 100%
TECHNICAL SPECIFICATIONS
SETTING THE SERVO TRAVEL
Aileron = 12 mm
= 8 mm
Elevator = 10 mm
= 10 mm
Rudder = 15 mm
= 15 mm
Flaps half = 9 mm full = 18 mm
Mix with the flaps minimal elevator down
CENTER OF GRAVITY (CG)
The center of gravity is exactly at the level of the gear
legs, see the mark under the fuselage.
1.034 mm (40.7 inches)1.008 mm (39.4 inches)
FLYING WEIGHT:
~ 1.750 g, depending on
RC components and 3D printing
After installing the electronics and setting up the transmit-
ter, check that the control surfaces are aligned correctly.
Set the transmitter trim to zero. The ailerons should be alig-
ned with the trailing edge of the wing tip. Then align the
flaps with the ailerons. The elevator should be aligned with
the horizontal stabilizer and the rudder to the vertical stabi-
lizer. Change the position of the moving parts by changing
the length of the linkage from the servo arm to the control
horn. In-flight adjustments can be made later with the trim.
FLIGHT TIMER
Flight time will vary depending on the battery size.
Expect 6 minutes under normal circumstances (4.200
4S battery). It is a good idea to be conservative with
the flight timer until you gain experience with your
airplane.
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