Carf-Models Ultra Flash, Instruction Manual

Page: 26 / 44

Make several hand-holds with duct-tape or masking tape on
the outside of the canopy (see photo). Using the tape ‘han-
dles’ pull the canopy tightly up into the frame in the centre
and secure it with a tiny drop of slow CA (odourless ZAP-O
or Plasti-ZAP recommended) either side of the central fibre-
glass ‘hoop’. You can use the tip of a modelling knife blade
for this. Check alignment of the front and back of the canopy
again, and then pull them tightly into the frame with the han-
dles and secure these also with a tiny drop of CA.
Note:
Do NOT use any CA accelerator/kicker - you will
immediately ‘fog’ the clear canopy!
When the CA has cured the canopy and frame cannot twist
any more and you can remove it from the fuselage and com-
plete the rest of the gluing from the inside, using a small
bead of slow epoxy (such as Hysol 9462) to trap the clear
canopy in the frame. Be sure that you make a good job of
this, with careful surface preparation, so that there is no risk
of the clear canopy coming off in flight which would serious-
ly affect the flying characteristics of the plane.
Cockpit Tub
A moulded ABS plastic cockpit tub is included in the kit. It
consists of 4 pieces, which should be joined with plastic
cement and painted/trimmed to your choice, in the usual
way. Paint and add details and pilot bust to your choice.
When completed it can be glued permanently inside the
cockpit canopy frame, or glued onto a lightweight balsa
base-plate and left loose. The photo here shows the plain,
unpainted parts, as supplied in the kit.
Wing
The wing is secured to the fuselage with two Ø 10mm car-
bon pins at the front (into carbon tubes glued into bulkhead
F4), and two M4 x 45mm high-tensile steel bolts at the
back, which screw into special nuts that are bonded into
the fuselage during manufacture. Ailerons and flaps are
hinged and cut free, and all the phenolic horns are
installed for you at the factory. The hatch cover for the fuel
tank bay is also hinged and cut out ready for you. If you
are only fitting a tank in the fuselage, then this hatch is just
used to access the pneumatic tubes from the landing gear
and the servo extension cables. (see photo P20)
The aileron and flap servos are screwed into a CNC milled
plywood frame that you must glue to the milled carbon-com-
posite servo covers, and then the covers are secured to the
wing with Ø 2.9 x10mm sheetmetal screws.
24
(above) Trap the inside edges of
the clear canopy into the frame
with a small bead of slow epoxy
all around. Note also the phenolic
canopy hooks seen here.
(below) Plastic cockpit tub dry-
fitted into the cockpit. Add detail-
ing and paint as required.
(above) Wing servo hatches and
outer gear doors are CNC milled
carbon-composite parts.