8ülldlng Instruclions 101
lhe DG 300 Elan
Specilication
Wngspan:
Fuselage length:
Wing
area:
Aspect ratio:
Empty weight:
Flying weight:
Wing loading
(FAl):
Winq
section:
Tailplane
section:
RC
functions
Ailerons
(one
or two
servos)
Elevator
Budder
Airbrakes
Optional
aero{ow
coupling
Optional rekactable undercarriage
(standard
commercial type)
Optional retractable
p0wer plant (standard
commercial type)
There are three alternative methods
of operating the ailerons:
One
servo mounted in
the fuselage,
-
Two servos mounted in the fuselaoe:
Two servos mounted in
the wings.
ll
you
lit two
servos,
you
can make
use of an electronic aileron
dilferential lacility,
or even use the ailerons as
camber-changing flaps
with the help 0f a mixer
(suitably
equipped transmitter required).
l'|ole: Do not
use any solvent-vased adhesives
on
the wood/styrofoam
components, especially instant
glues
(cyano-acrylates)
such as Zacki.
Use s-mlnute epoxy or white
glue.
l{ote: The
control surface horns
'14
are used as lollows:
1 lor the rudder
(drilled
1.3 m.m.
0)
1 lor the elevator
(drilled
1.6 m.m.
0)
2 for the ailerons
(drilled
1.7 m.m. 0)
2 for the rudder hinges
(1.0
m.m.
0; drill out to 2 m.m. 0)
The
fuselage
_,
The first,
preparatory
stage
is
to saw out the canopy frame
along
the
marked line, and
clean up
the
cut edges.
Bevel the edges of
parts
8
-
'10
(front
former,
servo
plate
and main
former), to follow the
curvature of
the fuselage.
The die-stamped
apertures in the servo
plate
9 match Multiplex Nano
servos; if
you
intend using different servos, the
apertures
may need
to be a dilferent
size.
Parts I
-
10
are
installed
as lar forward as
possible
in the fuselage; the
canopy
lrame is
used
here
to ensure that the fuselage width is correct.
The fuselage must be wider than the
canopy
trame
by up to 1 m.m. all
round. Check that
your
receiving equipment
(battery,
servos, switch
harness, receiver) will fit in
the space
provided
belore
gluing
the
plywood parts
in
place.
Check also
that
the canopy lrame is an
accurate
fit.
Roughen up the tuselage
sides
where they
are
to
be
glued,
and
glue
parts
I
-
10 in
place,
using slow-setting epoxy.
Glue
the fuselage
cross-struts
5 together with
the edges flush, and
trim their
rear face
to match the internal shape ol the wing root fairing;
glue
them in
place
when they
are a snug
lit.
Caution: the
fuselage
must not be
pushed
out ol
shape by
the
struts.
All
the
holes
and apertures in the
fuselage
wing root fairings can now
be drilled.
The holes for the fear locating
pin
are 3 m.m.0. The holes
for the wing linkages marked on the front
p0rtion
should
lirst
be
pilot
drilled, then filed out caretully to linal
shape.
Draw lines to
join
up
the marked
corners of the wing
joiner
slots,
then
pilot
drill, and
lile the
slots to shape. Take care that
a
minimum
distance ol
1 m.m. is
maintained between the bottom
edoe of
the
fairing section and the
joiner
slot.
Wing
ioiner
system
The two rectangular
brass lubes have to be n0tched at
one end, as
shown in the drawing, otherwise the width
ol the fuselage
prevents
the
components being litted.
Assemble the wing
joiner
system and
set a
total
dihedral angle of 7'.
This entails setting the
side
pieces
48 m.m. from the
centre of the
joiner
unit, i.e. the side
pieces
are 96
m.m.
apart.
(dihedral
=
3.5'per
wing, total
dihedral
=
7") D0 not forget to
press
in
the rivet!
Numerous
test flights have
shown
the recommended
dihedral 0f 7'to
be the ideal
average
value,
providing
a
good
alfround balance of flight
characteristics. We strongly
advise
you
not to increase or reduce
the
dihedral anole.
pieces
to the tubes,
uslng s-minute epoxy
or
instant
llote: Never tighten the
clamping screw unless both wing
blades
are
in
olace
in the tubes.
otherwise the tubes will
be crushed and the blades
will no longer fit.
Check that the wing
joiner
assembly lits in the luselage.
The next
step is to align the wing
joiner
assembly and bond it in
place;
accuracy
here
is crucial to the model's flying
characteristics;
please
work
carefully.
Fit the wing
joiner
blades
and
the locating
pins
38 loosely in the wings,
then fit the wing
joiner
assembly into the luselage,
and
plug
in the
wings. Check whether the wings
and fuselage root fairings
are
correctly aligned, and trim out the holes in the root fairings
to correct
any discrepancy. Do not worry about any
gaps;
they will
be lilled with
resin laler.
Sight along the
fuselage
from the nose, and
check
that
the lin is
vertical.
The wing
joiner
assembly
can
now
be spot-glued
in
place,
using
s-minute epoxy
-
do not
glue
it in
place permanently
at
this
stage.
Allow the resin to
set
hard
(at
least
'15
minutes).
Unplug the wings and
joiner
blades, and seal olf the outside of the
wing root fairing with tape.
The wing
joiner
unit can now
be
permanently
bonded
in
place.
Use
thickened epoxy resin for this
(Araldite
or other
high-strength,
slow-
setting
resin, filled with
scraps 0f tibreglass, micro-balloons,
chopped
fibreglass strands etc.). lt is
advisable
to
bond
in
each side separately,
and to leave the fuselage lying 0n that
side until
the resin has
completely cured.
This
avoids any danger ol the resin
penetrating
into
the wing
joiner
unit.
Sand
the
projecting
ends of the wing
joiner
unit flush with the outside
surface of the wing root tairings.
The
die-stamped apertures in the servo
plate
12 match Multiplex
Nano
servos
(two
servos
for
ailerons).
lf
you
intend
using dilferent
servos, cut apertures t0 match, then trim the
servo
plate
t0 fit in
the
luselage
at the correct
point.
ll the
ailerons and airbrakes are t0 work elficiently it is essential that
the
servo
plate
is located in
exactly the right
place.
To ensure that this
is the case, fix the
servos
to the
plate (either
screwed directly, or using
quick-release
mounts), and
position
the
plate
in the fuselage.
Slide
the
steel
pushrods
18
and
19 into
the
wing-mounted
bowden cable
outers, leaving them
projecting
at the root. Plug the wings into the
luselage.
The servo
plate
is now moved untilthe rods
p0int
exactly to the
points
on lhe servo output arms from which they are to
be
actuated. There
should be
no
curve
in
the rods at all. Check that the
servo Dlate
is
.horizontal in the fuselage. When
you
are satislied, spot-glue the
plate
in
place
with
s-minute epoxy, then remove the wings and
servos and
bond the
plate permanently
in
place.
3750 m.m.
1540
m.m.
72
dnz
19.5
ca. 3300
g.
ca. 4200
g.
ca. 58
g./dm,
FX
60-'126
Naca
0009
Glue the side
glue.
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