Included in the kit are 2 milled
composite balsa/glass plates to
secure the tanks, and these
should be fitted as they stiffen
the wing root considerably.
Sand the edges of the plates as
needed to fit in the wing roots
exactly, and glue them in place
with a little clear silicone - so
that they can be easily
removed if you need to get the
tanks out.
It is up to you whether you con-
nect the main tanks together in
‘series’ or ‘parallel’, but in our
experience we seem to get less
air in the hopper tank when
they are connected in series.
As shallow, flat-bottomed, wing tanks are prone to al-
lowing air into the fuel feed we recommend that you fit
a small ‘hopper’ tank (approx. 100cc/4 oz capacity) be-
tween the main tanks and the turbine fuel pump to ex-
clude air from the system that could cause a flame-out.
Once again its’ your choice, but we have had success
using both the BVM UAT and the Intairco ‘Airtrap’ tank
(Intairco part # IAC-216R). There is plenty of space to
fit it in front of the turbine, above the wing saddle.
If you have chosen to fit a turbine at the upper end of
the recommended thrust range you will probably need
to install a 3rd fuel tank of about 300cc (10 fl.oz) to give
you sufficient flight time. One solution is to fit a Sullivan
‘saddle’ (320cc/11 fl.oz) or Oval 10 oz. tank against the
side of the fuselage, in front of the turbine mount (under
the rear of the cockpit), held in place with silicone ad-
hesive. However, because of the danger of damage to
plastic tanks from the hot turbine, we strongly recom-
mend that you protect it by covering it with a sheet of
thin aluminium, or printers Lithoplate
Because of the reason mentioned above Fox Compos-
ites do
not
recommend that you fit plastic tanks either
at the side, or above/below the turbine in any circum-
stances.
In all circumstances, please follow the your turbine
manufacturers instructions and recommendations for
all fuel system connections and installation.
Fox Composites Co., Ltd.
15
(above) Sand the edges of the milled balsa/glass plate to fit
in the rib exactly, and glue them in with a little clear silicone.
(below) The Intairco ‘Airtrap’ tank is an excellent and eco-
nomical choice as a hopper tank (125ml/4 oz).
(above) Sullivan 11 oz saddle tank will
require trimming the inlet duct.
(below) Sullivan 10oz Oval tank fits
fine. Secure with Silicone adhesive.
