Multiplex Alpina Carbotec Assembly Instructions Manual Download Page 12

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Wings

Start with the wings.
As wing servo we recommend using the Hitec Servo

D89MW.

# - 1-00077.

Sand the gluing surface in the servo slot thoroughly and clean it with al-
cohol to remove any grease

(picture 1)

Shorten the servo horn for flaps and ailerons so the linkage can be
mounted in the 2. hole. This is 10 mm from the servo axle

(picture 2)

Mount the servos in the frame using clear plastic wrap. This protect the
servo from the resin

(picture 3)

Tape the area around the servo slot to protect the surface from dropping
resin during the next building steps

(picture 4)

Insert the servo into the slot to find its final position

(picture 5)

The linkage must move freely and should be right in the middle of the exit
opening of the linkage.
After marking the correct position, apply resin to the servo frame and
mount it in the servo slot

(picture 6)

Fix it so it can’t move and let the glue cure thoroughly. Afterwards, remove
the servo and check that the servo frame is glued in properly

(picture 7)

Before screwing the control horns into the rudder, check if there is any
resin in the thread. If needed, recut the thread with an M3 tap

(picture 8)

Glue in the horns with resin or thread locker. Make sure to let the horn
cure exactly at right angle to the hinge line so the clevis can move freely
afterward

(picture 9)

Before mounting the servos including linkage in the wing, check if the
clevis can be screwed easily to the linkage. If it’s very hard to do, you can
shorten the linkage by approximately

5 mm

. This makes it much easier to

screw the linkage and you still have enough thread to have a secure
connection between linkage and clevis.

Adjusting the aileron servos

Move the servo to middle position and mount the servo horn like shown
on

picture 10

Adjust the length of the linkage so the aileron is in neutral position

(picture 11)

Adjusting the flap servos

Move the servo to middle position and mount the servo horn like shown
on

picture 12

. Adjust the length of the linkage so the flap is

6 mm

down

(picture 13)

Fitting the wings

The model Alpina carbotec has a floating wing connection. That means
that the wing joiner does not touch the fuselage. The hole for the wing
joiner in the fuselage should be around

1,5 mm

bigger all around. If it’s

not, sand the fuselage a little. The wing joiner is made from high-strength
rectangular carbon fibre. 4 steel bolts

connect the wings to the fuse-

lage.

Prepare the holes for the wing bolts of the fuselage by drilling them with
a

4mm

drill. Insert the wing bolts into the wing and connect the wings to

the fuselage by also using the carbon wing connector. If the wings do not
fit perfectly to the fuselage, adjust the position by sanding the hole of the
wing bolt in the wing with a needle file.
After preparing the wings like this, the wing bolts can be glued into the
wings after sanding the gluing surface of the wing bolts thoroughly with
coarse sandpaper. Add some release wax to the root rib of the fuselage.
Apply resin to the wing bolts and insert them into the wing about halfway.
For an easy assembly on the field later, it is helpful to have different length
of the bolts. We recommend

10mm

on the front and

13mm

on the rear

(picture 14)

. Position the wings carefully and let everything cure over-

No. Pices

Description ELECTRIC GLIDER

# 1-00699

Power unit Alpina carbotec

•

# 318579