ZupAir Zulu kit contents are laid out for inspection. The kit consists of four large molded parts
(fuselage, two wing halves, and vertical fin), two small molded parts (hatch and nose cone), and a
square tube fiberglass wing joiner.
An Aloft Hobbies 1,200 mAh NiMh battery pack mounted in the nose with Beacon Foam-Tac glue.
The FrSky V8FR-II receiver is mounted with double-stick foam.
The drooperons work in conjunction with the elevons to increase lift in thermal activities, and also
EMAX ES3352, Hitec HS- 65, or
similar); a receiver battery pack; a pair
of 12-inch servo extension wires; and a
receiver on/off switch.
Note that a kit version with servos
installed and linkages set up is available
from the supplier.
Slide the wing into place and attach
it to the fuselage with clamp bolts. Use
foam-friendly adhesive to glue on the
tail and nose cone. (Beacon Foam-Tac
is recommended for this, the battery
mount, and for field repairs.)
It took me less than an hour to
assemble the aircraft, plus install the
battery pack, receiver, and the on/off
switch. I received the ARF version with
preinstalled servos. If you build the basic
kit version, expect to spend another
couple of hours on servo installation and
control linkage setup.
With the 4.8-volt 1,600 mAh 2/3A
NiMH battery pack supplied by Aloft
Hobbies, my Zulu balanced perfectly
with no additional nose weight. I let
the glue on the tail dry and the battery
charge overnight, and was ready to fly
the next morning.
Promotional materials and box art
states that the Zulu can be flown in
five situations: Thermal Soaring, Hand
Launch, electric power, Slope Soaring,
and extreme aerobatics. I tried each to
the limits of my piloting abilities.
The Zulu holds a remarkably stable
thermal turn. Although many thermal
pilots want a rudder on a thermal-seeking model, the Zulu does fine in
“slermal” conditions. Slermal is mixed
slope and thermal lift that gains altitude
in rising warm air as high as and as far
out as the pilot can see it. I found the
Zulu’s thermaling ability impressive for a
plank design, although I did miss having
As much as I admire Discus Launch
as the purest form of silent flight, the
Hand Launch sailplanes that work for
me weigh close to 10 ounces, while the
Photos by the author except as noted
66 Model Aviation SEP TEMBER 2016