C&C Models AERMACCHI M346 Instruction Manual

C&C MODELS AERMACCHI M346
Building instructions rev1.2
Pag 1
AILERON AND FLAP SERVOS INSTALLATION

In the hardware package you will find the servo wood blocks (8 pcs,bag H).Screw the servo to two
blocks and check the correct position on the servo plate. Then secure the blocks to the plate with
CA glue. It is highly recommended to screw the block from outside of servo cover. We also
recommend to use strong servos. (JR8711 or similar)
For the flap linkage you need to make a hole.
Pag 2

Pag 3

RUDDER SERVO INSTALLATION
You will find the servo support inside the rudder, simply screw the servo in place and make a slot
for the servo arm. Check out the correct position for the linkage (bag C) and check where you have
to make the slot for the control horn (bag C).We recommend to use a strong servo (JR8711 or
similar)
Pag 4

Pag 5

Pag 6

ELEVATOR SERVOS INSTALLATION
Elevator servo support is ready to use. Before you glue it, check carefully the servo installation and
movements. Put the two elevator carbon rod in the bearing support,align and screw it. USE
LOCKTITE!
Screw the two servos (jr8911 or similar) to the support (part F) and glue it to the former in the
fuselage, we recommend to glue this part very carefully and strong using good epoxy resin. Put the
linkage (bag C) and check the alignment. Neutral position of the elevators is 0° regarding the wing
level. For a better result and to avoid flutter we recommend to use a strong servos in the elevators.
Please check the screws of aluminium block and screw it if need.
Pag 7

GEAR DOORS INSTALLATION
You can choose to install servos or air cylinders for the gear doors movements. Three hinges are
used for the main gear doors. (not included in the kit)
For the small doors and the nose doors use the brass hinge(not included in the kit)
Pag 8

ATTENTION: YOU CAN CHOISE TO INSTALL BRASS HINGES OR PLASTIC HINGES.
THESE PARTS ARE NOT INCLUDED IN THE KIT.
Pag 9

To simplify the gear door system you can also choose to screw the two small main gear doors and
cutting a slot in it for the leg. If you choose to install servos for the gear door movement, in the
hardware package (bag A+M) you will find the servo supports shown in the picture below.
Pag 10

TURBINE AND PIPE INSTALLATION
Turbine support and pipe are ready to use. But before mounting it finally please check the correct
position from the turbine and pipe to the fuselage.
Pag 11

For safety we highly recommend to protect the exhaust area and the bottom of the elevators with
aluminium sheets like shown on the pictures below.
Pag 12

In the kit you will find the inox protection for the exhaust area on the fuselage, sand it and glue in
position, for safety stop with some small screws.
Pag 13

RETRACTS INSTALLATION
Our retract kits are ready to use, you just need to screw the retracts to the wood support and check
the correct movement together with the gear doors.
FUEL TANK INSTALLATION
The main fuel tank must be positioned on top of the air inlet. You have to glue the two wood
supports (included in a hardware bag M) to the tank, using a strong epoxy resin.
Pag 14

Cover of main fuel tank is painted with graphite spray(not included in the kit)
Hopper tank position next to the main tank

Pag 15
The wood plate (O)
should be used to install electronic devices. In our model for we simple covered
the plate with Carbon Oracover film.

Pag 16
Fuel pump, filter and valve position next to the turbine using wood plate N.
Wood rib G is used as support. Glue it through the main gear door to the tank.

Pag 17
How to secure the wings
The two carbon spars on the wings are secured trough the aluminium blocks which are already fixed
in the correct position. Main screws trough the gear doors, for rear screws you have to drill holes in
the fuselage.Please check the screws of aluminium block and screw it if need.
Speed brake
In the bag you will find two horns and two steel pins for the airbrake, glue the horns in the airbrake
to the exact position shown on the picture.

Pag 18
Drill holes for the two pins into the bottom of turbine cover and put the horns from the airbrake in
it. You can run the airbrake with servo or air cylinder at your choice.
Center of gravity
The center of gravity is located from 21 to 23 cm from the leading edge!You can settle it at 21-22
cm for the first flight,the model result more stable. Please see picture below. You can move it little
bit rear to increase the agility(max to 25cm). Measure with UAT full and empty main fuel tank and
gear down!
Pag 19

Throws
Aileron:15 mm up 15 mm down, expo 60%
Elevator: 35 mm up 30 mm down, expo 60%
Flap: take off 15 mm
Rudder:20mm left/right
In the starting sequence of your turbine we recommend to move the elevators like in the picture
below to avoid problems with high temperature during startup.
In flight when you raise up the power, the model is going to get the nose upwards. We recommend
to make a mix with elevators down.
Pag 20