Composite-ARF BAE Hawk, Инструкция по эксплуатации, Страница: 10 / 32

B.A.E. HAWK
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tank cap and tubing will reward you with a reliable
aeroplane. De-bur inside the brass tubing with a new
sharp scalpel blade and remove any raised edges on
the outside caused by cutting. To aid sealing and help
prevent the fuel tube coming off, solder the short
lengths of tube provided a few mm back from each
end of the feed line and on the outside of the breather
line only.
Use Tygone tube for the clunk line, where the clunkline
passes through the baffle insert a section of brass tube
as the glass fibre edge can easily cut through the
tygone tube. The supplied soft clunk will become
heavier when charged with fuel and easily reach all
areas of the fuel tank.
The fuel tank is designed to be easily removable,
retained by the aluminium tank cap at the front and
two fixing brackets at the rear. The tank cap is
inserted into a 60 x 60 3mm plywood plate that is
fixed to former F2. The two aluminium angles and 30
x 3 x 185mm plywood strip are bonded to the rear of
the tank. Two M4 Allen screws fix these angles to
plywood mounts bonded to the fuselage sides. Start
by laminating the four 40 x 45mm 3mm plywood
mounts into two pairs.
Drill ø 4.1 holes centred on one each of the aluminium
angle faces. Drilling small holes in the opposite face
will help improve the bond to the Plywood spreader
plate and a small screw can be added for additional
security. Assembly of the rear mount is simplified if
you tack glue each part in position with a spot of Slo
Zap cyanoacrylate glue. Start by fixing the plywood
cross piece to the rear of the tank. Gently lay the
tank in the fuselage with the 60 x 3 x 60mm front
mount in plate to set the for/aft position of the tank.
Even moulded Kevlar tanks expand slightly during
filling, so it is important that the tank is not pushed
down into the fuselage before fixing. Tack glue the 40
x 45 x 6mm side mounts to the fuselage side against
the former F3 approximately 8mm down from the
fuselage contour change, using a few spots of thick
CA glue. Tack glue the aluminium mounting angle to
the plywood spreader plate with the ø 4.1mm hole
against the plywood mounts. Using a pen, mark the
fixing position on the 40 x 45 x 6mm plywood plates.
Remove the tank and break free the angles. Mark the
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