Model type: Sport ARF
Skill level: Beginner to intermediate
Wingspan: 109 inches
Wing area: 1,663 square inches
Length: 78 inches
Weight: 16. 5 to 17. 5 pounds
Power system: 30cc gas or 160-size electric
Radio: Five-channel minimum with
seven (electric) to eight (gas)
Street price: $599.99
Power system: Evolution 33cc gas engine
Radio system: Spektrum DX18 radio;
Spektrum AR9000 receiver;
eight Spektrum A6180 digital
servos; Spektrum 2S 2,200
mAh LiFe receiver battery,
several servo extensions
Propeller: Xoar 18 x 8
Ready-to-fly weight: 15. 5 pounds
Flight duration: 10 to 12 minutes
• Laser-cut balsa and plywood construction.
• Includes tank, wheels, and all control
• Prepainted fiberglass cowl, wheel pants, and
aluminum gear are included.
• The fin and stabilizer are removable via six
bolts for easy transportation.
• The wing halves are a plug-in design and are
supported by an aluminum tube.
• All parts and templates are included for gas
or electric power.
• Large top and bottom fuselage hatches offer
access to the radio (and batteries if you
choose electric power).
• It is a blast to fly, stable at low speeds, yet
capable of basic IMAC maneuvers.
• Flaps are included and are quite effective.
• Out of the box the covering was extremely
AT A GLANCE ...
Top: There aren’t a lot of parts for an airplane
of this size. Most of the parts you see here bolt
into place, making this a quick-to-assemble
Above: This shot of the wings and stabilizer
highlights the difference between the highly
visible top and bottom color schemes.
There was only one negative about
this review model and it was at the start.
As I was taking the pieces out of the box
for the obligatory parts photos, I couldn’t
help but notice the wrinkles. Each piece
of iron-on covering was wrinkled.
Because this is such a large model,
I spent at least an hour going over
everything to seal the seams and remove
the wrinkles. But the covering has since
Typical of my reviews, I’m not going to
cover all of the steps, but only highlight
the important stuff. If you’d like to see
what goes into building the Valiant,
you can download the manual from
the Horizon Hobby website. The link is
listed in the “Sources” section.
Assembly starts with the wing halves. The ailerons use
CA hinges while the flaps have point-type hinges that fit
into predrilled holes. The aileron and flap servos are then
mounted on their respective hatches, screwed into position,
and the 4-40 control hardware is hooked up.
Work then moves to the vertical fin and horizontal stabilizer.
The control surfaces are installed with the same point-type
hinges. Then the tail wheel and control horns are installed.
Assembling the fuselage begins by bolting the tail surfaces
in place—yes bolting, not gluing. Both the complete fin and
stabilizer assemblies are held in place by first bolting the
fin to the stabilizer with two long screws. This subassembly
is fastened to the fuselage with six more bolts (four on the
top, two on the bottom). When everything is tightened, it
is as rigid and secure as if it was glued in place, but the tail
surfaces can be removed for storage or transportation.
Next, the three servos for the rudder and elevator are
installed. Each elevator half utilizes its own servo. After
the elevator pushrods and rudder pull-pull hardware are
attached, focus moves to the power system.
The Valiant can be powered with glow, gas, or electric
power. The manual shows installation of both the Evolution
33cc gas engine and the E-flite Power 160 motor.
An Evolution 33GX engine was supplied with the review
Valiant. It’s a compact, 2 cu. in. gasoline engine that features
an up-front carburetor placement. Beam or radial mounting
options are included. Because the Valiant is made for the
Evolution 33GX, I bolted the radial mount into position,
56 Model Aviation APRIL 2015 www.ModelAviation.com