This is how the PNP version comes out of the box. The model can be assembled quickly.
lowered makes it easier to complete the
assembly, plus it reduces the chances
of denting the foam while on the
The aft fuselage section is glued to the
main fuselage with the included epoxy.
After that was completed, I decided to
do a quick run-up of the EDF system
to test the wattage. The recommended
battery is a 6S 4,000 mAh LiPo, so I
used an Admiral Pro 60C for the test
run up. The ESC comes with an EC5
connector, which matches with the
connector on the Admiral Pro battery.
As I advanced the throttle, I quickly
noticed that the fan unit was not
balanced. I could feel the vibrations in
the fuselage. Fortunately, the EDF unit
is easily accessible by removing three
screws on the belly of the fuselage. After
the hatch was removed, the ESC and
the fan unit were removed. The fan unit
is held to the fuselage by two screws in
light plywood mounts.
The stock six-blade fan has a
removable spinner to make dynamic
balancing easy. The screw holding the
left it as it was, it could have vibrated
loose in flight. I added some ballast
to the inside of the spinner, and after
clocking the spinner location a few
times, the fan was smoother.
Before securing the EDF unit back
into the fuselage, I wicked in a little
thin CA glue to harden the wood
mounts. The plywood used is soft and
lightweight, and the CA glue will help
the mounting screws hold better when
With the EDF dynamically balanced
and reinstalled, a full-throttle wattmeter
test was performed. On the Admiral
Pro, I measured 1,040 watts after
approximately 15 seconds. The sound
was better and the vibration was gone.
The manual shows the tail assembly
installation being complete before
the wings are added. I decided to not
assemble it in this order because the
vertical stabilizer is epoxied to the
If it is off slightly, then the horizontal
T-tail will tilt after the wings are
assembled to the fuselage. I decided
it would be safer to install the wings
first and then glue the tail assembly, to
Type: Semiscale EDF
Skill level: Intermediate
Wingspan: 25. 82 inches
Length: 55. 23 inches
38. 1 ounces
Radio system Hitec Aurora 9 transmitter;
used: Hitec Optima 6 receiver
Power system: 70mm EDF (six-blade) with
2849-2,200 Kv outrunner
Components Six-channel radio/receiver;
needed to 6S 2,200 to 4,000 mAh LiPo
Construction: EPS foam
Flight time: 3 to 5 minutes
Price: $229 (PNP); $179 (ARF Plus)
• Fast assembly.
• Excellent performance out of the box.
• Four-tone camouflage color scheme.
• Recommended LiPo battery is heavy.
AT A GLANCE ...
50 Model Aviation MAY 2016