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with a drop of 5-minute epoxy, or use a little UHU Endfest
300 (slow-setting epoxy) and leave it overnight to cure.
On no account use cyano! All you need to do is take a little
glue on a pin, apply it to the inside of the hole in the plastic
spinner, and then push the propeller onto the motor shaft.
Push the pin right through the spinner from the front to
prevent an air bubble forming in front of the motor shaft.
5. Installing the electric motors
The motors are simply glued in the motor pods by applying
a few drops of "Medium Zacki" to the motor can, and pushing
them into place; line up the motors with the edge of the upper
rounded side of the pods. It is not necessary to apply glue
over a large area of the motor; a few drops at the edges will
hold them securely, and they can then easily be cut out if a
fault develops. Fill any gaps at the joints with chopped cotton
strands.
6. Preparing the canopy
Cut a 35 mm long piece from the balsa strip 20, and glue it in
the rectangular recess in the canopy 5, using Zacki. Fit a screw-
hook 31 into the dowel 22, and glue the dowel in the circular
hole. When the model is prepared for flying, the canopy is
held in place by means of the rubber band 29.
7. Sealing the bottom of the fuselage
Arrange all the cables neatly inside the fuselage. The
moulding process produces an unwanted projection inside
the channel on the underside of the fuselage nose 2. This
should be removed using a sharp balsa knife. Cut the landing
skid (balsa strip) 20 to length and trim it to fit in the recess in
the fuselage. If you wish, you can seal the strip with a coat of
paint, or cover it with film. Spray the strip with "Zacki Activator"
before gluing it in place, and let it dry for a while. Apply
"Medium Zacki" to the fuselage channel - enough, but not
too much! - and push the strip into place.
8. Fitting the bottom screw-hooks
Locate the marked points in the vacuum-moulded liner shell
- one at the front, and one forward of the battery ramp - and
pierce or drill a hole about 1.5 mm Ø at both points. Fit the
screw-hooks through the holes in the liner shell and into the
wood strip 20. Apply a drop of Zacki to secure them.
9. Installing the fins
Check that the fins 3 + 4 are a close fit "dry" , i.e. without glue.
If the joint surfaces do not match the profile of the wing
perfectly, remove any rough edges and sand slightly to obtain
a good fit. Spray the joint surfaces with "Zacki Activator" and
allow it to dry. Apply "Medium Zacki" to the fin recesses in
the top surface of the wing, and push the fins into place. Check
alignment immediately, and tape them in place until the glue
has cured.
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9. Final assembly
Glue strips of Velcro tape (hook side) 23 in the appropriate
positions on the inside of the fuselage liner shell, and attach
the loop side of the Velcro tape to the corresponding
components which are to be held in place.
The RC system and power system components should be
positioned as follows:
At the front, behind the rubber band which retains the canopy,
comes the receiver. The speed controller should be installed
between the receiver and the second screw-hook, which
retains the flight battery. The flight pack itself is fitted on
the angled ramp. The battery position can be varied slightly,
and its final location is determined when the model is
balanced. Extra security is provided for the battery by the
rubber band 28.
Final assembly - lateral location of the flight pack
When you have made the landing skid 20 (750 mm long) and
the cabin latch 21 (35 mm), cut the remainder of the strip
material into two pieces of roughly equal length. Position the
flight pack inside the inner fuselage and trim the two strips
to fit on both sides of the battery to provide lateral support.
Glue them to the inner fuselage as shown.
Run the receiver aerial through the pierced hole in the
fuselage side and along the channel in the wing. Secure it
with adhesive tape as shown in the drawing.
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The next step is to test the working systems, and this
requires all the electrical connections to be completed.
Never connect the motors until you have
switched on the transmitter, and have checked
carefully that the motor control stick is at "OFF" .
Switch the transmitter on, and connect the flight battery in
the model to the speed controller, and the speed controller
to the receiver. It is essential that your controller should
feature what is known as a BEC circuit (receiver power supply
from the flight pack).
Switch the motors on briefly from the transmitter, and check
the direction of rotation of the propellers (when test-running
the motors hold the model really securely, and remove any
loose lightweight objects from the area behind the model.
Take care: even small motors and propellers represent an
injury hazard!
Once all the internal components are installed correctly, you
can glue the fuselage top decking 6 in place. Trim the decking
to fit "dry" , holding the canopy in place at the same time, and
trim the parts if necessary. Spray "Zacki Activator" on the top
decking, let it dry, then apply "Medium Zacki" to the fuselage
joint surfaces, and carefully fit the top decking in position.
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