3
Note: It is possible that the peg/epoxy joint will loose as it is loaded. When it happens, apply drop of thin CA into
the seam for the good and permanent joint.
Attach the wing on the fuselage with the front screw. Square up the wings to the fuselage by temporarily fitting the
boom and attaching a string line to the boom and measuring to each wingtip. Once satisfied the wing is square,
locate and drill a tapping drill for a M4 thread (3.2 mm ) for the rear plastic screw in the pod and tap a M4
thread..
Note: Over the years, it has been found, that the 4 carbon wing connection patches over the mounting points
have proved to give sufficient strength, provided the model is flown in F3K style, on a flat field.
If the model has a rather hard landing, the wing halves will usually separate in the middle and can be repaired
very easily. However, there is in the a piece of glass cloth, which can be used to cut two strips 10- 15 mm wide to
secure the winds along the seam on top and bottom.
If you want to do some slope flying, do not use a 'hard' discuss type launch on the descending ground.The large
angle of attack against the wing can cause the wing break. We recommend you reinforce the seam, as described
above. Any case, be very careful when doing DLG launches on a slope as it is easy to slip over and suffer
serious injury.
Tail
Horizontal stabilizer first:
Test fit the rudder to the boom to determine the stab location. Wrap emery cloth around the boom where the stab
will be mounted and sand a radius on the bottom of the stab mount, to match the boom. Drill a 1,5mm hole in the
side of the mount so it can be secured to the boom with thread (Kevlar or similar) after it has been glued to the
boom. CA soak
the thread tip to make a “needle”.
Screw the stab on the mount and roughen the boom by lightly sanding the boom where the mount will be
attached. Position the assembly carefully on the boom, so that the stab lower surface is parallel to the boom
upper surface. CA drop in place. When satisfied, use more middle density CA. Or, you can use epoxy to install
the stab as it will give you more time for the correct alignment. Use a string line to ensure stab is square with the
boom.
Drill the 1,5 mm holes through the boom and insert the carbon pegs all the way. The pegs are very helpful.
CA or epoxy the horn in place.
Vertical stabilizer:
Join the fin and the boom. The fin should be perpendicular to the stab and can be checked with a square. Secure
with epoxy. Strengthen the fin mounting with two approx 30 x 25 mm patches of fiberglass and coat with epoxy.
CA or epoxy the horn in place.
NOTE : Best results are gained by fitting the rudder horn on the RH side of the rudder for RH throwers. This helps
prevent flutter at launch.
Final assembly
Screw the wing to the fuselage. Push the boom/tail group assembly on the pod and use the thin CA glue
NOW
,
while checking for correct position of the tail in respect to the wing. Easiest way is to set model upside down so
both wingtips are resting on the ground and using a square to ensure fin is vertical. Secure the seam with epoxy
bead all around.
Drill a hole through the front of the boom and pod and install a 1,5 mm carbon peg through to prevent pod/boom
from tear-off.
Install the servos in fuselage, usually side-by-side. Connect the rudder and elevator horns to the servo arms.
Use the micro pushrods consisting of Teflon tubing and steel inner part. CA or epoxy the outer tubing to the
inside of the pod, on either side and run out of two 1,5 mm holes in the rear of the wing saddle, down the top of
the boom, to the tail. The terminals can be done using Z Bends (servo arm) and L Bends (horns) - shaped piano
wire 0,8 mm, joined to the steel wire with a 12mm piece of heat shrinking tubing and thin CA. The stab can be
fully detachable.
