17
its slot and carefully cut 1.5mm (1/16”) on the inside of the line to remove the covering film from both the top
and bottom.
Take the Fin and insert into the slot. With a pencil mark along the Fuselage as with the Tail Plane, remove
the Fin and remove the covering from 1.5mm (1/16”) below the line.
!!!
Warning
. Only cut through the film while undertaking the tasks above,
do not
cut into the balsa as this will
weaken the Fin and may cause it to fail in flight!!!
Re-insert the Fin and make sure that the cut-out in the base of the Fin lines up with the Tail Plane slot.
Insert the Tail Plane to confirm. One satisfied with the fit, glue the Fin into position using epoxy on the base
where it joins to the Tail skid and Cyano or white wood glue at the junction with the top deck. Ensure that
the Fin is vertical, with the wing seated; also, check that the Fin is at 90° by viewing it from the front.
Glue the Tail Plane into position, apply the glue inside the slot, top and bottom, and with help carefully open
the slot while inserting the Tail Plane and release the Fuselage to clamp back down. Only apply slight
pressure so as not to break the rear of the Fuselage. When inserting the Tail Plane be careful not to get
glue onto the covering. Make sure the Tail Plane is parallel to the wing by viewing from the front as before.
Take the fully covered Fuselage with Fin and Tail Plane fitted and glue the hinges 50% into the Rudder and
Elevator. Glue using a thin Cyano and ensure that it penetrates the slots both top and bottom. Slot the
hinges into the corresponding slots on the Fin and Tail Plane. Move the control surfaces full travel (min 45°)
to ensure that there is no resistance and repeat the gluing process. Due to the large control surfaces we
would recommend pinning the hinges, this is left to the builder’s discretion.
Fit the Elevator servo (rear servo), Rudder servo (front servo) and 9g Throttle servo (glow version) using the
screws supplied with the servos, if you haven’t already, fit the 6 x 6mm (¼” x ¼”) spruce to the front servo.
Pilot drill the holes first to prevent the ply and spruce splitting.
Using two horns from the hardware pack
on both the Elevator and Rudder, install them as described earlier
for the ailerons, except using a horn either side of the control surface. The Elevator horn is placed at the
centre of the Elevator and the Rudder horns are placed at the bottom of the Rudder parallel with the bottom
rail. Ensure that they are tight and sealed with Cyano as before. For those wishing to get larger Rudder
movements move the horn back from the hinge point by approximately 12.5mm (½”).
With a Bradawl make holes for the closed loop system to exit the Fuselage as shown below. Start by making
a hole at 90° to the surface, then increase the angle while twisting the Bradawl to about 5°. Make the holes
in the positions as shown on the diagram. We have found it neater to insert tubes into the holes, and have
used old pen inners (Biro) or excess Bowden outer glued in place with Cyano. Ensure Cyano does not enter
the tube, or it will glue the cable fast. The hole for the upper Elevator closed loop cable will be placed
centrally on the rear deck but needs to be inserted at an angle so that the cable can be run past the Fin post.
90
o
90
o