Assembly instructions
a) Figure 1: Wing support
Attach the double-sided adhesive tape (B) to both wing supports (A). Use the contours as a
guide.
The wing supports (A) are inserted in the upper (C) and lower parts (D) of the fuselage and
fastened to the fuselage with two clamping bolts (E) each.
The wings can be taken off later for transport of the finished model by removing the
clamping bolts.
b) Figure 2: Wings
Before the wings (A) are mounted on the wing support, they must be a bit kinked in shape. For
this purpose, carefully bend the wings at the groove (B) into shape to create the wing panel
profile (C). Here, use the wing support as a guide.
c) Figure 3: Mounting the wings
The following step is fundamental for further flight characteristics of the model. The
more precise you are, the better your model will fly.
Peel off the protective film of the double-sided adhesive tape (A) on the wing supports. Place
now the wings centrally on the wing supports and press them tightly onto the wing support. The
wings must sit flush with the front edge of the wing support. Besides, the wings must be affixed
in a way avoiding their skewed positioning.
Now, turn these units around. Glue one of the transparent stickers onto each wing support (B)
on the left and right.
d)
Figure 4: Mounting flat thrusts
Detach both thrusts from the shaped part (A). Mount the flat thrusts (B) successively onto both
wings (C) positioning them approx. 100 mm from the outer edge of the upper wing. The flat
thrusts are thus hooked into the front and rear edges of the relevant wing and symmetrically
aligned with one another. Use the figure 7 as a guide.
e) Figure 5: Mounting the tail units
Mount successively the tail plane (B) and tail fin (C) onto the tail skid (A). The tail fin must be
mounted to fit the contour of the tail skid.
The tail plane must be mounted in such a way that the front edge of the tail plane is positioned
flush with the front edge of the tail plane receiver of the tail skid (rectangular support).
During the assembly, please also note the direction in which the tail plane is mounted. The tail
plane faces the elevation rudders by corresponding contours (see also figure 5, pos. B). The
rudders point rearwards. The resulting flight characteristics depend on the exactness of the
assembly.
Peel off the corresponding protective film and glue the tail units centrally following the contours
of the tail skid.
f) Figure 6: Mounting the rubber drive
Slide the stabilizing spacer (A) to the centre of the two fuselage halves. Hook the rubber band
to the tail skid (B) and lead it through the opening in the stabilizing spacer. The driving rubber
band is previously knotted and mounted in a double layer. The knots are hooked to the tail skid.
Slide now the chassis (C) to the lower receiver of the propeller unit. Then hook the rubber
band to the eyelet of the propeller unit. The propeller unit is then pushed onto both fuselage
halves (D).
g) Figure 7: Finished model
Assembly of the model is completed. Your model aircraft must look as shown in the figure 7.
h) Figure 8: Checking the model assembly
For the model to fly correctly, make sure that wings and tail units are not askew. Always check
the assembled model before each flight.
• The yaw rudder may not be directed to any specific direction (A).
• Neither elevation rudder nor wings can be mounted in such a way that any incidence angle
of the wings is apparent (B).
• A properly assembled model is shown in figure (C). Wings, elevation and yaw rudder are
positioned at proper angle to each other.
The first start
a) Figure 9: Starting
The first flight attempts should be carried out on a sufficiently large lawn far from
roads, buildings and other obstacles. At a later stage, when you already have some
experience, you will be able to launch the model in a large garden or hall.
For the first launch, you can wind the rubber motor with approx. 60 revolutions. If you
have already gained some experience and there is sufficient flying space, you may
wind the rubber motor with a maximum of 120 revolutions.
Turn the propeller, when viewed from the front, clockwise to tension the rubber band (A). For
the first flight attempts, you can wind the rubber motor with approx. 60 revolutions. Hold the
propeller firm and turn the model towards the wind (the wind must come from the front, see grey
arrows in the figure). Now release the propeller. Due to the tension of the rubber band, the pro-
peller starts turning. Now throw the model with a gentle thrust into the air (yet by no means with
too much impetus!). Thereby, the model should get off at a slight angle upwards (B).
b) Flight movements
Watch the flight trajectory of your model. Depending on the flight trajectory, to achieve straight
flight, you must slightly adjust the rudder surfaces of the elevation and/or yaw rudder.
c) Figure 10: Trimming the "elevation rudder"
If the rise of the aircraft model after the start is too steep (A) followed by gliding down at a great
angle (B) and this pattern is continually repeated, the elevation rudder balance must be slightly
adjusted towards "depth".
If the flight trajectory of the model after the start is strongly inclined downwards (C), then the
elevation rudder balance must be slightly adjusted towards "height".
You are trimming the elevation rudder, when, holding by both sides, you bend the elevation
rudder along the groove a bit towards either "depth" (D) or "height" (E). Proceed very care-
fully and make sure that both sides of the elevation rudder are trimmed exactly in the same
way. Otherwise, the asymmetric position of the rudder flaps causes "aileron effect" leading to
undesirable spiral flight.
The balancing operation must probably be repeated several times until the desired flight path is
achieved. The model is properly balanced in respect of the elevation rudder, if the model goes
up after the start (including by motor power) at a low angle. Once the rubber motor loses driving
force, the model goes down on a gliding flight at a low angle.
d) Figure 11: Trimming the "yaw rudder"
If the aircraft model goes leftwards (A), the yaw rudder must be trimmed a bit towards "right". If
the aircraft model goes rightwards (B), the yaw rudder must be trimmed a bit towards "left". The
yaw rudder is trimmed by bending the yaw rudder along the groove a bit towards either "left"
(C) or "right" (D). Proceed very carefully.
The balancing operation must probably be repeated several times until the desired flight path
is achieved. The model is properly balanced in respect of the yaw rudder, if the model goes up
after the start (including by motor power) at a low angle without turning. Once the rubber motor
loses driving force, the model goes down in a gliding flights without spiralling at a low angle.
Maintenance, servicing and repairs
The model is an aircraft of a very simple design. It contains no mechanical parts requiring
lubrication or any other maintenance. Nevertheless, you should clean it from any contamination
(wool threads, hairs, dust etc.) after each flight. Only use a dry or slightly moistened cloth for
cleaning. Use an appropriate glue for repairs.
Disposal
Please dispose of the product, when it is no longer of use, according to the current
statutory requirements.
Technical Data
Rubber band motor ...............................max. 120 revolutions
Wingspan ..............................................410 mm
Length...................................................390 mm
Weight ..................................................approx. 36 g
This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com).
All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in electronic data processing
systems require the prior written approval by the editor. Reprinting, also in part, is prohibited. This publication represent the technical status at
the time of printing.
© Copyright 2017 by Conrad Electronic SE.
1559496_V2_0717_02_VTP_m_en