Multiplex Alpina magic User Manual

Alpina
magic
building
instructions
Dear modeller,
Many
thanks
for
purchasing
a
MULTIPLEX
model kit
UUlftplgX
kits
undergo
a series
ol
material and
quality
checks,
and
we are sure
you
will be satisfied
with the contents
ol
your
kit.
However,
we would
ask
you
to
check
all the
kit com-
ponents
betore
using them,
as
it is not
possible
to exchange
parts
which
are no
longqr.in
new condition.
RC
funclions:
Ailerons
(optional
1 or
2
servos)
Elevator
Rudder
Airbrakes
Aero
-tow
coupling
're
servo
in the
fuselage;
--.(o servos
in the
fuselage;
Two servos
in the
wings.
Two aileron
servos
give
you
the
option of electronic
aileron
dif-
lerential as
well as
the
possibility
of using
the ailerons
as
cam-
ber
-
changing
flaps
(these
facilities
must be
provided
by
your
transmitter).
Note:
lt is essential
that
you
do
not use solvent
-
based
adhe-
sives
when
gluing
wood to styrofoam.
Use
s-minute
epoxy
or
white
glue.
The fuselage
The
first stage
is to
saw out
the cabin
frame
along the
line
marked on
the underside,
and
clean up
the cut
edges.
Check
that
it fits snugly
on the
fuselage.
The cabin
frame should
be
about
1
mm smaller
all round
than the
fuselage.
Bevel the
edges of
parts
31,
32 and 33
to
match the
fuselage
curvalure.
The outline
of
MULTIPLEX
Nano,
Mini, and
Profi servos
is die-
stamDed
into the
servo
plate
31.
lf
you
intend using
diflerent
servos,
alter the
apertures
to suit.
'e
servo
olate
also
includes
an aperture
torthe
On/Otf
switch.
-x the servos
and servo
mounts
(if
used
-
not
included
in
the
kit)
on the servo
plate.
lf
you
intend
fitting an aero
-
tow coupling,
olease
use a
powerful
servo
(torque
greater
than
2.0 cm/kg).
Farts 31,
32 and
33 are
now installed
in the
fuselage
in the
posi-
tion shown.
Check
that
the fuselage
is not
pushed
out of shape.
Before
gluing
the
parts
in
place,
temporarily
install
the servos
and connect
up
the
receiving system
(servos,
receiver,
battery,
switch
harness)
to check
that eveMhing
works correctly.
Check
also
that the
cabin
frame stillfits
accurately.
lt
must not
foul the
servo output
arms!
Roughen
up
the
fuselage sides
where
these components
are to
be
glued,
and
fix them
in
place
using
slow-setting
epoxy
(UHU
plus).
Caution:
Checkthat
the fuselage
is not distorted
when
the com-
Donents
are
installed.
All the
holes and
apertures
required
in the
wing
root
lairings
should
be cut at
this stage.
The
holes for the
rear
locating
peg
should
be 3
mm diameter.
The apertures
for
the wing control
surface
linkages
in the
leading edge
area
should
be
pilot-
drilled
initially,
then
filed out
neatly to at
least I
mm diameter.
The slot
tor the
wing
joiner
needs
to be continued
through
the
f uselage
wall, using
a 2 mm drill
as a
milling cutter.
Leave
only a
short
length of drilIprotruding
Irom the drill chuck,
and
move
it
sideways
to
mill out a slot,
using
the the
rear face of
the slot
as a
guide.
Älternatively,
use
a tlat
file, working
from
inside the
fusel-
äge.
Thoroughly
roughen
up the
inside ot the
fuselage
sides
aiound
the slots
to
provide
a key
when
gluing
in the
wing
joiner.
Wing
joiner
assembly
Bevel
the cross
-
strut
19 to lit the
fuselage
interior
shape
at the
rear of
the
wing root
fairings.
Trim it to
lit snugly,
and
glue
it
in
otace. Check
that
the strut
does
not obstruct
the
rear locating
peg
holes.
Roüghen
up
both ends
of the
two rectangular
brass
tubes and
assemble
them
as shown
in the
drawing.
Slip the
two
side
cheeks
onto
them. Check
that
the tubes
are the
right
way round
-
rioht-hand
blade to
the front,
left-hand
blade
to the rear.
Adjust
theirass
tubes until
only one
end of
each
projects
out
of the
fu-
selage.
The other
end
is lett about
5 mm short
of
the opposite
fu-
selage
side.
The
iing dihedral
is determined
by the
spacing
oI the
side
cheeks.
ilumerous
test
flights
have shown
that
a dihedral
angle
ot 7 degrees
is the
optimum
figure
for balanced
all-round
Ilying
characieristics.
We strongly
advise
against
reducing
or
in-
creasing
the dihedral
from
this
figure.
(Dihedral:
3.5
degrees
per
wing.
Total dihedral
:
7 degrees)
Flace thä rectangu-lar
brass
tubes
on the
angle
iig
and shift
the
side cheeks
until the
dihedral
is correct.
The
two cheeks
must
be eoui
-
distant
from the centre,
otherwise
the
model will
have
difteränt
dihedral
on each
side.
Lrark
the
position
oI the
side
cheeks
on the brass
tubing.
Assemble
the
Joiner
clamp
as shown
in the drawing.
Be
sure
to
lit the copper
rivet
in the clamp
backplate;
it is a
good
ideato se-
cure
it
with a drop of
instant
glue.
You can
use either
a slot
-
head
or allen
-
head
machine screw
as lhe
clamp
screw.
Caution:
Never tighten
the
clamping
screw
unless
both
wing
joiner
blades
are in
place
in the
tubes,
otherwise
the tubes
will
-be
squashed,
and
it wilt be difficult
to
insert
the
joiner
blades.
The
next stage
-
adjusting
and
installing
the wing
joiner
tube
as-
sembly
in the
fuselage
-
is of vital
importance
to the
f light
cha-
racteristics
of
your
model.
Please take
particular
care
here-.
De-grease
the
wing
joiner
blades
20 and
the
locating
pegs
24,
andiit
them in the
wings
(do
not
glue).
Installthe
joiner
assembly
in
the fuselage,
threading
the
side cheeks
and clamp
onto
the
rectangular
tubes
inside the
fuselage),
and
plug
in
!h9
winS9.
Check
that
the wings
line up
with the
root
fairings, and
trim back
the apertures
in
the fairings
until
alignment
is
exactly
right.
Check
that the
side cheeks
are
positioned
at the
marked
points'
and
qlue
them to
the tubes
using 5-minute
epoxy. Spot-glue
the
joinei
assembly
to the
fuselage
sides
using 5-minute
epoxy
(do
irot
glue
the äisembly
permänently).
Leave the
glue
to
set
for
about
fifteen
minutes.
Carefully
remove
the
wing
panels
and
joiner
blades.
lf
there.is
any
gaoaround
the
joineitubes,
tape
overthem
onthe
outside'
tträ
fring
joiner
assembly
can
now be
permanently
bonded.into
the
fustäge. Use
high-qualitv,
slow-setting
epoxv
for this,
such
as UHU
plus
or
MULTIPOXY,
thickened
with extra-fine
chopped
glass
rovings.
The
best
method
is to work
on one
side
at
a time, änd
leave
the luselage
resting on
that side
untilthe
re-
sin has
cured.
This
prevents
any risk of
the
resin
getting
into
the
wino ioiner
assemblv.
Whön-
the epoxy
has cured,
sand
back the
ends
of the
joiner
tubes
llush
with the
fuselage
root
lairings.
Take care
not to dam-
age
the fuselage!
Aileron
servo
plate
installation
The servos
for the aileron
and
airbrake
functions are
mounted
on
a slide, so
that
they can
be
litted and
removed
quickly'
Glue
the
guide
plates
34
on
the outside
servo
plate,
with
the
edges
flush;
do not
lit the servo
plate
31
b at this
stage.
lmportant:
take care
that
no
glue
gets
into the
guide
channel.
Mount the
servos
in the
prepared
apertures
and
fit the slide
into
the
guide
channels;
round
off the
edges
of the
servo
plate.if
ne-
cesöary.
Glue
the reinforcing
plate
35
centrally
on
the frontface
of the
3ervo
olate.
Drill 1.5mm
diameter
holes at
the marked
points
inthe reinforcing
plate,
andfixthe
servo
slide to
the
guide
channels
using
the
screws
36.
It the
ailerons
;nd airbrakes
are
to operate
smoothly
and
reliab-
lv it is essentialto
installthe
servo
plate
in
exactlythe
right
posi-
tion. Slip
the
aileron
and
airbrake
pushrods
48 and
49 in the
ou-
ters,
leaving
the root
ends
proiecting,
and
plug
the
wings
into
the
fuselage.
Shift the
servo
plate
in the fuselage
untilthe
pusn-
rods run exactly
across
the
correct
linkage
point
on the
servo
output
arms.
The cables
should
be
perfectly
straight
-
do not
al-
Specification:
Wingspan:
Fuselage
length:
Wing
area:
All- up
weight:
Wing
loading:
Wing
section:
Tailplane
section:
3800/4400
mm
1700 mm
65/74
sq dm
ca. 37009
57l50
g/sq
dm
Ritz combination
NACA 0009
15

Multiplex Alpina magic Specifications

General

Brand	Multiplex
Model	Alpina magic
Category	Toy
Language	English