Futura RCJI article - Schlusen.net

TOMAHAWK FUTURA
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The Tomahawk supplied tailpipe is a 5070
dual wa1l tube, which not only helps to keep
weight down but also protects the tailplane
assembly from convection heat. The forward
section of the tailpipe is single wa11ed but
sufficiently surrounded by enough air within
the fuselage to keep the radiant heat from
affecting the fuselage structure.
Power
The chosen engine for this project was the
mighty Jets Munt 160K and, as such, the
installation was as easy as it gets. Again, there
is just so much room that you can mount your
ancillary engine equipment anpvhere around
the engine compartment and be fooled into
thinking you have inadvertently left some
components out, as once installed there is stil1
enough room to mount another.
The smoke system used came via an Orbit
variable speed smoke pump which was fed
from two smoke supply tanks mounted
beneath the engine suPPort rails.
The flying surfaces on the Futura are Kevlar
embossed with live hinging except for the
rudder, which uses a removable fu11-length
hinge pin. Also another nice little time saver
fiom Tomahawk is that all servo mounts came
pre-sized and ready to accept standard sized
SETVOS.
With this build we decided on a different
approach with regards to the power system.
Most jets this size end up with reguiated
power boards and multiple batteries, but we
wanted to retain the multiple batteries for
redundancy but did not want to use a regulated
power board as the power demand from the
servo and electronic set-up used is well within
the rated capacity of Orbitrs Powerjack
married to a single Futaba 6014 2,6 GHz
receiver. Dual Duraiite A123 batteries supply
unregulated power via two Fromeco Zodiak
switches.
For those that do not know anlthing about
these Zodiak switches, I have to say they are a
nice piece of kit and essential when using 4,123
The orbit variable speed smoke pump works fine
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